./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 3a877d22 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 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:00:24,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:00:24,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:00:24,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:00:24,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:00:24,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:00:24,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:00:24,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:00:24,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:00:24,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:00:24,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:00:24,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:00:24,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:00:24,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:00:24,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:00:24,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:00:24,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:00:24,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:00:24,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:00:24,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:00:24,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:00:24,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:00:24,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:00:24,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:00:24,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:00:24,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:00:24,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:00:24,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:00:24,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:00:24,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:00:24,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:00:24,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:00:24,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:00:24,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:00:24,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:00:24,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:00:24,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:00:24,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:00:24,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:00:24,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:00:24,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:00:24,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-15 17:00:24,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:00:24,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:00:24,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:00:24,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:00:24,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:00:24,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:00:24,648 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:00:24,648 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:00:24,648 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:00:24,648 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:00:24,649 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:00:24,649 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:00:24,649 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:00:24,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:00:24,650 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:00:24,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:00:24,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:00:24,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:00:24,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:00:24,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:00:24,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:00:24,651 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:00:24,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:00:24,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:00:24,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:00:24,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:00:24,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:00:24,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:00:24,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:00:24,654 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:00:24,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b83d1547bf3dd46e9571984e7e0a13f5187eff03a7662628a99d75ecc5b0412 [2021-12-15 17:00:24,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:00:24,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:00:24,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:00:24,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:00:24,905 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:00:24,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2021-12-15 17:00:24,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a81351eb/116e757c5974416f8aa9afeabb8e0bbf/FLAGc8f91275a [2021-12-15 17:00:25,383 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:00:25,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strcasecmp.i [2021-12-15 17:00:25,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a81351eb/116e757c5974416f8aa9afeabb8e0bbf/FLAGc8f91275a [2021-12-15 17:00:25,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a81351eb/116e757c5974416f8aa9afeabb8e0bbf [2021-12-15 17:00:25,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:00:25,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:00:25,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:00:25,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:00:25,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:00:25,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bbb37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25, skipping insertion in model container [2021-12-15 17:00:25,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:00:25,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:00:25,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:00:25,690 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:00:25,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:00:25,739 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:00:25,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25 WrapperNode [2021-12-15 17:00:25,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:00:25,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:00:25,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:00:25,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:00:25,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,774 INFO L137 Inliner]: procedures = 114, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2021-12-15 17:00:25,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:00:25,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:00:25,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:00:25,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:00:25,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:00:25,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:00:25,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:00:25,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:00:25,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (1/1) ... [2021-12-15 17:00:25,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:25,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:25,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:25,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-15 17:00:25,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 17:00:25,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 17:00:25,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 17:00:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 17:00:25,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:00:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:00:25,938 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:00:25,939 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:00:26,092 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:00:26,097 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:00:26,102 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 17:00:26,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:00:26 BoogieIcfgContainer [2021-12-15 17:00:26,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:00:26,105 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:00:26,105 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:00:26,113 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:00:26,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:00:26,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:00:25" (1/3) ... [2021-12-15 17:00:26,115 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3df55223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:00:26, skipping insertion in model container [2021-12-15 17:00:26,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:00:26,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:00:25" (2/3) ... [2021-12-15 17:00:26,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3df55223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:00:26, skipping insertion in model container [2021-12-15 17:00:26,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:00:26,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:00:26" (3/3) ... [2021-12-15 17:00:26,120 INFO L388 chiAutomizerObserver]: Analyzing ICFG strcasecmp.i [2021-12-15 17:00:26,154 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:00:26,154 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:00:26,154 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:00:26,154 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:00:26,154 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:00:26,155 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:00:26,155 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:00:26,155 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:00:26,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:26,178 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2021-12-15 17:00:26,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:00:26,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:00:26,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-15 17:00:26,182 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:00:26,182 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:00:26,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:26,184 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2021-12-15 17:00:26,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:00:26,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:00:26,184 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-15 17:00:26,185 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:00:26,189 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 16#L524true assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 10#L526-3true [2021-12-15 17:00:26,190 INFO L793 eck$LassoCheckResult]: Loop: 10#L526-3true assume !!(main_~i~0#1 < main_~in_len~0#1 - 1);call write~int(main_#t~nondet9#1, main_~in~0#1.base, main_~in~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet9#1; 6#L526-2true main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 10#L526-3true [2021-12-15 17:00:26,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:26,194 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-15 17:00:26,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:26,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615940164] [2021-12-15 17:00:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:26,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:26,290 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:26,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:26,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:26,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2021-12-15 17:00:26,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:26,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372704625] [2021-12-15 17:00:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:26,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:26,349 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:26,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:26,360 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2021-12-15 17:00:26,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:26,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419070706] [2021-12-15 17:00:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:26,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:26,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:26,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:26,651 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:00:26,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:00:26,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:00:26,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:00:26,652 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:00:26,653 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:26,653 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:00:26,653 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:00:26,653 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration1_Lasso [2021-12-15 17:00:26,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:00:26,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:00:26,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:26,962 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:00:26,965 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:00:26,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:26,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:26,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:26,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-15 17:00:26,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:26,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:26,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:26,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:26,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:26,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:26,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:26,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,025 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 [2021-12-15 17:00:27,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-15 17:00:27,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,043 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-15 17:00:27,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-15 17:00:27,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:27,103 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:27,118 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-15 17:00:27,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,162 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-15 17:00:27,164 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 [2021-12-15 17:00:27,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,188 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-15 17:00:27,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,237 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-15 17:00:27,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,291 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-15 17:00:27,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,344 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-15 17:00:27,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,370 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-15 17:00:27,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:27,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:27,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:27,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:27,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-15 17:00:27,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,404 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-15 17:00:27,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:27,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:27,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:27,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:27,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:27,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:27,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:27,442 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:00:27,465 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-12-15 17:00:27,465 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-12-15 17:00:27,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:27,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:27,471 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:27,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-15 17:00:27,648 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:00:27,665 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:00:27,665 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:00:27,666 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~in_len~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~in_len~0#1 Supporting invariants [] [2021-12-15 17:00:27,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:27,705 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-15 17:00:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:27,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:00:27,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:00:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:27,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:00:27,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:00:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:00:27,799 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:00:27,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:27,848 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 21 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 89 transitions. Complement of second has 7 states. [2021-12-15 17:00:27,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:00:27,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2021-12-15 17:00:27,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-15 17:00:27,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:27,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-15 17:00:27,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:27,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 60 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-15 17:00:27,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:27,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2021-12-15 17:00:27,873 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-12-15 17:00:27,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 18 states and 23 transitions. [2021-12-15 17:00:27,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-15 17:00:27,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-15 17:00:27,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-12-15 17:00:27,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:00:27,879 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-15 17:00:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-12-15 17:00:27,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-15 17:00:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-12-15 17:00:27,902 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-15 17:00:27,902 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-15 17:00:27,902 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:00:27,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-12-15 17:00:27,904 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-12-15 17:00:27,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:00:27,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:00:27,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-15 17:00:27,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:00:27,905 INFO L791 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~nondet9#1, main_#t~post8#1, main_~i~0#1, main_#t~nondet10#1, main_#t~malloc11#1.base, main_#t~malloc11#1.offset, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 151#L524 assume !(main_~in_len~0#1 < 1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;main_~i~0#1 := 0; 148#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 144#L526-4 call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1; 145#L532 assume !(main_~out_len~0#1 < 1);call main_#t~malloc11#1.base, main_#t~malloc11#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc11#1.base, main_#t~malloc11#1.offset;main_~i~1#1 := 0; 137#L534-3 [2021-12-15 17:00:27,905 INFO L793 eck$LassoCheckResult]: Loop: 137#L534-3 assume !!(main_~i~1#1 < main_~out_len~0#1 - 1);call write~int(main_#t~nondet13#1, main_~out~0#1.base, main_~out~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 139#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 137#L534-3 [2021-12-15 17:00:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:27,910 INFO L85 PathProgramCache]: Analyzing trace with hash 889572430, now seen corresponding path program 1 times [2021-12-15 17:00:27,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:27,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041732750] [2021-12-15 17:00:27,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:27,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:27,938 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:27,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:27,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:27,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2021-12-15 17:00:27,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:27,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052923457] [2021-12-15 17:00:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:27,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:27,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:27,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:27,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:27,971 INFO L85 PathProgramCache]: Analyzing trace with hash 180614416, now seen corresponding path program 1 times [2021-12-15 17:00:27,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:27,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857720684] [2021-12-15 17:00:27,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:27,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:27,995 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:28,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:28,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:28,437 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:00:28,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:00:28,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:00:28,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:00:28,437 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:00:28,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:28,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:00:28,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:00:28,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration2_Lasso [2021-12-15 17:00:28,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:00:28,438 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:00:28,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:28,889 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:00:28,889 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:00:28,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:28,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:28,893 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:28,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:28,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:28,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:28,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:28,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:28,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:28,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:28,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:28,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-15 17:00:28,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:28,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:28,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:28,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:28,953 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:28,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-15 17:00:28,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:28,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:28,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:28,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:28,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:28,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:28,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:28,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:28,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:28,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:28,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:28,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:28,991 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:28,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-15 17:00:28,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:28,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:28,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:28,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:28,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:29,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:29,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,036 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-15 17:00:29,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:29,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:29,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:29,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,064 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-15 17:00:29,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:29,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:29,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:29,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,091 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-15 17:00:29,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:29,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:29,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,153 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-15 17:00:29,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:29,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:29,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:29,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,199 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:29,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:29,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:29,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-15 17:00:29,230 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 [2021-12-15 17:00:29,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,231 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-15 17:00:29,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:29,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:29,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:29,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,273 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:29,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:29,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-15 17:00:29,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-15 17:00:29,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,314 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-15 17:00:29,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:29,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:29,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:29,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:29,337 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 [2021-12-15 17:00:29,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,338 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-15 17:00:29,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:29,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:29,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:29,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:29,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:29,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:29,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:29,379 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:00:29,402 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-15 17:00:29,402 INFO L444 ModelExtractionUtils]: 20 out of 37 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-12-15 17:00:29,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:29,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:29,404 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:29,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-15 17:00:29,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:00:29,413 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:00:29,413 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:00:29,413 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~out_len~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~out_len~0#1 Supporting invariants [] [2021-12-15 17:00:29,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,450 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-12-15 17:00:29,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:29,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:00:29,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:00:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:29,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:00:29,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:00:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:00:29,525 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:00:29,525 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:29,553 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 39 transitions. Complement of second has 6 states. [2021-12-15 17:00:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:00:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:29,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-12-15 17:00:29,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-15 17:00:29,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:29,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-15 17:00:29,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:29,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-15 17:00:29,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:29,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2021-12-15 17:00:29,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-15 17:00:29,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 25 transitions. [2021-12-15 17:00:29,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-15 17:00:29,563 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-15 17:00:29,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-12-15 17:00:29,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:00:29,563 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-15 17:00:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-12-15 17:00:29,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-15 17:00:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-12-15 17:00:29,564 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-15 17:00:29,564 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-15 17:00:29,564 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:00:29,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2021-12-15 17:00:29,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-15 17:00:29,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:00:29,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:00:29,565 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:29,565 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:29,565 INFO L791 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 273#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; 279#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; 278#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 274#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; 275#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; 266#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 267#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; 282#L511-2 [2021-12-15 17:00:29,565 INFO L793 eck$LassoCheckResult]: Loop: 282#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; 283#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 276#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; 277#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 284#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; 280#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 281#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 282#L511-2 [2021-12-15 17:00:29,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash 180614358, now seen corresponding path program 1 times [2021-12-15 17:00:29,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:29,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191163512] [2021-12-15 17:00:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:29,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:29,579 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:29,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:29,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 1 times [2021-12-15 17:00:29,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:29,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385504032] [2021-12-15 17:00:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:29,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:29,607 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:29,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:29,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:29,619 INFO L85 PathProgramCache]: Analyzing trace with hash -723824312, now seen corresponding path program 1 times [2021-12-15 17:00:29,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:29,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213552882] [2021-12-15 17:00:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:29,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:29,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:00:29,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:00:29,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213552882] [2021-12-15 17:00:29,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213552882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:00:29,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:00:29,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 17:00:29,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613692737] [2021-12-15 17:00:29,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:00:29,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:00:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 17:00:29,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 17:00:29,974 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:00:30,054 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2021-12-15 17:00:30,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 17:00:30,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. [2021-12-15 17:00:30,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-15 17:00:30,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 45 transitions. [2021-12-15 17:00:30,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-12-15 17:00:30,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-15 17:00:30,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2021-12-15 17:00:30,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:00:30,057 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-12-15 17:00:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2021-12-15 17:00:30,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 22. [2021-12-15 17:00:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-12-15 17:00:30,059 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-15 17:00:30,059 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-15 17:00:30,059 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-15 17:00:30,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2021-12-15 17:00:30,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-15 17:00:30,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:00:30,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:00:30,060 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:30,060 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:30,061 INFO L791 eck$LassoCheckResult]: Stem: 345#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 346#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; 354#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; 351#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 347#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; 348#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; 338#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 339#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; 359#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; 358#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 349#L512-2 [2021-12-15 17:00:30,061 INFO L793 eck$LassoCheckResult]: Loop: 349#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; 350#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 357#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; 352#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 353#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 355#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; 356#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 349#L512-2 [2021-12-15 17:00:30,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:30,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1771707771, now seen corresponding path program 1 times [2021-12-15 17:00:30,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:30,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195893609] [2021-12-15 17:00:30,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:30,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,090 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 2 times [2021-12-15 17:00:30,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:30,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936098738] [2021-12-15 17:00:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:30,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,111 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash -619806935, now seen corresponding path program 1 times [2021-12-15 17:00:30,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:30,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187777618] [2021-12-15 17:00:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:30,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:00:30,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:00:30,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187777618] [2021-12-15 17:00:30,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187777618] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:00:30,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545099993] [2021-12-15 17:00:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:30,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:00:30,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:30,232 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:00:30,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-12-15 17:00:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:30,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-15 17:00:30,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:00:30,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-15 17:00:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:00:30,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 17:00:30,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545099993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:00:30,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 17:00:30,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2021-12-15 17:00:30,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660655099] [2021-12-15 17:00:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:00:30,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:00:30,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 17:00:30,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-15 17:00:30,638 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:30,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:00:30,736 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2021-12-15 17:00:30,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 17:00:30,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 49 transitions. [2021-12-15 17:00:30,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-15 17:00:30,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 23 states and 28 transitions. [2021-12-15 17:00:30,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-15 17:00:30,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-15 17:00:30,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2021-12-15 17:00:30,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:00:30,739 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-12-15 17:00:30,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2021-12-15 17:00:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-12-15 17:00:30,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-12-15 17:00:30,740 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-15 17:00:30,740 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-15 17:00:30,740 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-15 17:00:30,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-12-15 17:00:30,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-15 17:00:30,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:00:30,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:00:30,741 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:30,741 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:30,742 INFO L791 eck$LassoCheckResult]: Stem: 482#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 483#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; 489#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; 488#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; 480#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 481#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 484#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; 485#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; 475#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 476#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; 492#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; 493#L512 assume !(strcasecmp_~x2~0#1 % 4294967296 < 26); 486#L512-2 [2021-12-15 17:00:30,742 INFO L793 eck$LassoCheckResult]: Loop: 486#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; 487#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 494#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; 490#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 491#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 495#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; 496#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 486#L512-2 [2021-12-15 17:00:30,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash 826888793, now seen corresponding path program 1 times [2021-12-15 17:00:30,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:30,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311094231] [2021-12-15 17:00:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:30,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,755 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:30,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:30,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1652808163, now seen corresponding path program 3 times [2021-12-15 17:00:30,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:30,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364463030] [2021-12-15 17:00:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:30,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,772 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:30,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:30,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:30,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1293831029, now seen corresponding path program 1 times [2021-12-15 17:00:30,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:30,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473692881] [2021-12-15 17:00:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:30,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-15 17:00:30,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:00:30,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473692881] [2021-12-15 17:00:30,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473692881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:00:30,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:00:30,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 17:00:30,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327822482] [2021-12-15 17:00:30,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:00:31,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:00:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 17:00:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-15 17:00:31,056 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:31,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:00:31,155 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2021-12-15 17:00:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 17:00:31,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 45 transitions. [2021-12-15 17:00:31,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-15 17:00:31,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 36 states and 43 transitions. [2021-12-15 17:00:31,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-12-15 17:00:31,157 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-15 17:00:31,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 43 transitions. [2021-12-15 17:00:31,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:00:31,157 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2021-12-15 17:00:31,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 43 transitions. [2021-12-15 17:00:31,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2021-12-15 17:00:31,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:31,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-12-15 17:00:31,160 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-15 17:00:31,160 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-15 17:00:31,160 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-15 17:00:31,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-12-15 17:00:31,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-15 17:00:31,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:00:31,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:00:31,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:31,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:00:31,161 INFO L791 eck$LassoCheckResult]: Stem: 566#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 567#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; 573#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; 570#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; 562#L526-2 main_#t~post8#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post8#1;havoc main_#t~post8#1; 563#L526-3 assume !(main_~i~0#1 < main_~in_len~0#1 - 1); 564#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; 565#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; 557#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; 559#L534-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 560#L534-3 assume !(main_~i~1#1 < main_~out_len~0#1 - 1); 561#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; 579#L511-2 [2021-12-15 17:00:31,161 INFO L793 eck$LassoCheckResult]: Loop: 579#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; 580#L512 assume strcasecmp_~x2~0#1 % 4294967296 < 26;strcasecmp_~x2~0#1 := 32 + strcasecmp_~x2~0#1; 568#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; 569#L513 assume strcasecmp_~x1~0#1 % 4294967296 < 26;strcasecmp_~x1~0#1 := 32 + strcasecmp_~x1~0#1; 576#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; 571#L515 assume !(strcasecmp_~x2~0#1 % 4294967296 != strcasecmp_~x1~0#1 % 4294967296); 572#L517 assume !(4294967231 == strcasecmp_~x1~0#1 % 4294967296); 579#L511-2 [2021-12-15 17:00:31,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:31,161 INFO L85 PathProgramCache]: Analyzing trace with hash 826943990, now seen corresponding path program 1 times [2021-12-15 17:00:31,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:31,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587318876] [2021-12-15 17:00:31,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:31,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:31,172 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:31,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash -471896131, now seen corresponding path program 4 times [2021-12-15 17:00:31,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:31,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139598288] [2021-12-15 17:00:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:31,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:31,193 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:31,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:31,202 INFO L85 PathProgramCache]: Analyzing trace with hash 100997160, now seen corresponding path program 1 times [2021-12-15 17:00:31,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:00:31,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023830280] [2021-12-15 17:00:31,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:00:31,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:00:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:31,225 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:00:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:00:31,253 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:00:32,109 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:00:32,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:00:32,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:00:32,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:00:32,109 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:00:32,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:32,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:00:32,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:00:32,110 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcasecmp.i_Iteration6_Lasso [2021-12-15 17:00:32,110 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:00:32,110 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:00:32,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:32,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:00:33,214 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:00:33,214 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:00:33,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,220 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:33,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:33,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:33,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:33,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:33,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:33,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:33,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:33,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:33,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-15 17:00:33,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:33,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:33,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,273 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:33,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:33,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:33,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:33,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:33,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:33,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:33,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:33,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:33,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-15 17:00:33,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:33,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:33,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,325 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:33,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:33,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:33,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:33,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:33,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:33,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:33,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:33,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:33,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-15 17:00:33,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:33,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:33,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,381 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-15 17:00:33,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:33,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:33,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:33,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:33,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:33,393 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:33,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:33,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-15 17:00:33,415 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:33,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:33,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,441 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) [2021-12-15 17:00:33,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:33,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:33,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:00:33,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:33,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:33,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:33,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:00:33,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:00:33,459 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 [2021-12-15 17:00:33,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:33,493 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 [2021-12-15 17:00:33,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,495 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) [2021-12-15 17:00:33,509 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 [2021-12-15 17:00:33,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:33,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:33,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:33,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:33,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:33,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:33,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:33,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:00:33,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:33,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,563 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) [2021-12-15 17:00:33,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-15 17:00:33,568 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 [2021-12-15 17:00:33,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:00:33,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:00:33,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:00:33,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:00:33,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:00:33,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:00:33,615 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:00:33,651 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-12-15 17:00:33,651 INFO L444 ModelExtractionUtils]: 17 out of 52 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-12-15 17:00:33,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:00:33,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:00:33,656 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) [2021-12-15 17:00:33,657 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 [2021-12-15 17:00:33,658 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:00:33,679 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:00:33,679 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:00:33,679 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strcasecmp_~s1#1.base)_1, ULTIMATE.start_strcasecmp_~s2#1.offset) = 1*v_rep(select #length ULTIMATE.start_strcasecmp_~s1#1.base)_1 - 1*ULTIMATE.start_strcasecmp_~s2#1.offset Supporting invariants [] [2021-12-15 17:00:33,699 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 [2021-12-15 17:00:33,752 INFO L297 tatePredicateManager]: 21 out of 22 supporting invariants were superfluous and have been removed [2021-12-15 17:00:33,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:00:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:33,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-15 17:00:33,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:00:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:00:33,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-15 17:00:33,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:00:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:00:33,945 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-12-15 17:00:33,946 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 17:00:33,979 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 45 transitions. Complement of second has 8 states. [2021-12-15 17:00:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:00:33,984 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) [2021-12-15 17:00:33,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2021-12-15 17:00:33,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 12 letters. Loop has 7 letters. [2021-12-15 17:00:33,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:33,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 19 letters. Loop has 7 letters. [2021-12-15 17:00:33,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:33,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 12 letters. Loop has 14 letters. [2021-12-15 17:00:33,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:00:33,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2021-12-15 17:00:33,986 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:00:33,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2021-12-15 17:00:33,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-15 17:00:33,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-15 17:00:33,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-15 17:00:33,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:00:33,986 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:00:33,986 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:00:33,986 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:00:33,986 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-15 17:00:33,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-15 17:00:33,986 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:00:33,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-15 17:00:33,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.12 05:00:33 BoogieIcfgContainer [2021-12-15 17:00:33,992 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-15 17:00:33,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 17:00:33,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 17:00:33,993 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 17:00:33,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:00:26" (3/4) ... [2021-12-15 17:00:33,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 17:00:33,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 17:00:33,998 INFO L158 Benchmark]: Toolchain (without parser) took 8588.46ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 54.3MB in the beginning and 84.8MB in the end (delta: -30.5MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2021-12-15 17:00:34,003 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 40.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:00:34,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.36ms. Allocated memory is still 86.0MB. Free memory was 54.1MB in the beginning and 57.7MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:00:34,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.19ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:00:34,006 INFO L158 Benchmark]: Boogie Preprocessor took 20.59ms. Allocated memory is still 86.0MB. Free memory was 55.3MB in the beginning and 54.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:00:34,006 INFO L158 Benchmark]: RCFGBuilder took 308.48ms. Allocated memory is still 86.0MB. Free memory was 53.8MB in the beginning and 42.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 17:00:34,007 INFO L158 Benchmark]: BuchiAutomizer took 7887.07ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 42.7MB in the beginning and 84.8MB in the end (delta: -42.1MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2021-12-15 17:00:34,007 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 151.0MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:00:34,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 40.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.36ms. Allocated memory is still 86.0MB. Free memory was 54.1MB in the beginning and 57.7MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.19ms. Allocated memory is still 86.0MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.59ms. Allocated memory is still 86.0MB. Free memory was 55.3MB in the beginning and 54.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.48ms. Allocated memory is still 86.0MB. Free memory was 53.8MB in the beginning and 42.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 7887.07ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 42.7MB in the beginning and 84.8MB in the end (delta: -42.1MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 151.0MB. Free memory is still 84.8MB. 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 6 terminating modules (3 trivial, 3 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 -1 * i + out_len and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[s1] + -1 * s2 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 7.8s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 6.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 24 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 227 mSDsluCounter, 315 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 219 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 96 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital164 mio100 ax100 hnf99 lsp95 ukn89 mio100 lsp55 div111 bol100 ite100 ukn100 eq164 hnf89 smp95 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-15 17:00:34,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:34,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-12-15 17:00:34,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE