./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 332083c9703e7f789c3b57b3574f68dffe1c5555ad9f8a0d56f0eaba0a86f436 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:50:18,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:50:18,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:50:18,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:50:18,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:50:18,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:50:18,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:50:18,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:50:18,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:50:18,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:50:18,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:50:18,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:50:18,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:50:18,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:50:18,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:50:18,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:50:18,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:50:18,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:50:18,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:50:18,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:50:18,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:50:18,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:50:18,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:50:18,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:50:18,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:50:18,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:50:18,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:50:18,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:50:18,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:50:18,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:50:18,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:50:18,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:50:18,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:50:18,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:50:18,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:50:18,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:50:18,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:50:18,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:50:18,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:50:18,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:50:18,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:50:18,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:50:18,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:50:18,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:50:18,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:50:18,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:50:18,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:50:18,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:50:18,623 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:50:18,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:50:18,624 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:50:18,624 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:50:18,624 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:50:18,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:50:18,624 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:50:18,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:50:18,625 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:50:18,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:50:18,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:50:18,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:50:18,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:50:18,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:50:18,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:50:18,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:50:18,627 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:50:18,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:50:18,628 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:50:18,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:50:18,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:50:18,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:50:18,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:50:18,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:50:18,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:50:18,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:50:18,632 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:50:18,632 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 332083c9703e7f789c3b57b3574f68dffe1c5555ad9f8a0d56f0eaba0a86f436 [2021-12-21 22:50:18,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:50:18,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:50:18,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:50:18,855 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:50:18,855 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:50:18,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2021-12-21 22:50:18,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35272bdaa/928584af842145c18f2968aafbbb07d8/FLAGe75267e1b [2021-12-21 22:50:19,261 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:50:19,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/subseq-alloca-2.i [2021-12-21 22:50:19,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35272bdaa/928584af842145c18f2968aafbbb07d8/FLAGe75267e1b [2021-12-21 22:50:19,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35272bdaa/928584af842145c18f2968aafbbb07d8 [2021-12-21 22:50:19,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:50:19,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:50:19,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:50:19,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:50:19,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:50:19,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:19,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b333f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19, skipping insertion in model container [2021-12-21 22:50:19,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:19,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:50:19,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:50:19,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:50:19,894 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:50:19,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:50:19,964 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:50:19,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19 WrapperNode [2021-12-21 22:50:19,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:50:19,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:50:19,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:50:19,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:50:19,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:19,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,004 INFO L137 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2021-12-21 22:50:20,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:50:20,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:50:20,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:50:20,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:50:20,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:50:20,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:50:20,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:50:20,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:50:20,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (1/1) ... [2021-12-21 22:50:20,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:20,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:20,080 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) [2021-12-21 22:50:20,104 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 [2021-12-21 22:50:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:50:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:50:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:50:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:50:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:50:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:50:20,230 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:50:20,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:50:20,334 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:50:20,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:50:20,341 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-21 22:50:20,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:50:20 BoogieIcfgContainer [2021-12-21 22:50:20,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:50:20,343 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:50:20,343 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:50:20,345 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:50:20,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:50:20,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:50:19" (1/3) ... [2021-12-21 22:50:20,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@691cb01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:50:20, skipping insertion in model container [2021-12-21 22:50:20,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:50:20,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:50:19" (2/3) ... [2021-12-21 22:50:20,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@691cb01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:50:20, skipping insertion in model container [2021-12-21 22:50:20,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:50:20,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:50:20" (3/3) ... [2021-12-21 22:50:20,349 INFO L388 chiAutomizerObserver]: Analyzing ICFG subseq-alloca-2.i [2021-12-21 22:50:20,393 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:50:20,393 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:50:20,393 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:50:20,394 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:50:20,394 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:50:20,394 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:50:20,394 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:50:20,394 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:50:20,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:50:20,417 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-21 22:50:20,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:20,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:20,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-21 22:50:20,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:50:20,421 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:50:20,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:50:20,423 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-21 22:50:20,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:20,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:20,423 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-21 22:50:20,424 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:50:20,428 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 14#L530true assume !(main_~length1~0#1 < 1); 7#L530-2true assume !(main_~length2~0#1 < 1); 16#L533-1true call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 8#L539-3true [2021-12-21 22:50:20,428 INFO L793 eck$LassoCheckResult]: Loop: 8#L539-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 19#L539-2true main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 8#L539-3true [2021-12-21 22:50:20,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:20,432 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-12-21 22:50:20,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:20,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835418530] [2021-12-21 22:50:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:20,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:20,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:20,536 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:20,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-12-21 22:50:20,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:20,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127468171] [2021-12-21 22:50:20,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:20,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:20,547 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:20,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:20,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:20,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-12-21 22:50:20,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:20,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910514104] [2021-12-21 22:50:20,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:20,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:20,597 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:20,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:20,959 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:50:20,959 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:50:20,959 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:50:20,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:50:20,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:50:20,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:20,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:50:20,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:50:20,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration1_Lasso [2021-12-21 22:50:20,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:50:20,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:50:20,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:20,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:21,404 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:50:21,406 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:50:21,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,409 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) [2021-12-21 22:50:21,410 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 [2021-12-21 22:50:21,411 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 [2021-12-21 22:50:21,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:21,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:21,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:21,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:21,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-21 22:50:21,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,468 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) [2021-12-21 22:50:21,477 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 [2021-12-21 22:50:21,479 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 [2021-12-21 22:50:21,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:21,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:21,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:21,541 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 [2021-12-21 22:50:21,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,548 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) [2021-12-21 22:50:21,557 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 [2021-12-21 22:50:21,558 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 [2021-12-21 22:50:21,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:21,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:21,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:21,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:21,608 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 [2021-12-21 22:50:21,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,609 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) [2021-12-21 22:50:21,612 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 [2021-12-21 22:50:21,631 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 [2021-12-21 22:50:21,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:21,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:21,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:21,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:21,668 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 [2021-12-21 22:50:21,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,669 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) [2021-12-21 22:50:21,670 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 [2021-12-21 22:50:21,671 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 [2021-12-21 22:50:21,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:21,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:21,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:21,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:21,698 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 [2021-12-21 22:50:21,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,700 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) [2021-12-21 22:50:21,700 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 [2021-12-21 22:50:21,702 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 [2021-12-21 22:50:21,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:21,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:21,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:21,755 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 [2021-12-21 22:50:21,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,756 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) [2021-12-21 22:50:21,757 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 [2021-12-21 22:50:21,758 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 [2021-12-21 22:50:21,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:21,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:21,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:21,805 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 [2021-12-21 22:50:21,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,807 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) [2021-12-21 22:50:21,808 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 [2021-12-21 22:50:21,809 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 [2021-12-21 22:50:21,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:21,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:21,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:21,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:21,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:21,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:21,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:50:21,877 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-12-21 22:50:21,878 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-21 22:50:21,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:21,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:21,880 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) [2021-12-21 22:50:21,881 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 [2021-12-21 22:50:21,882 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:50:21,904 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-21 22:50:21,904 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:50:21,905 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1, ULTIMATE.start_main_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [1*ULTIMATE.start_main_~nondetString1~0#1.offset >= 0] [2021-12-21 22:50:21,923 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 [2021-12-21 22:50:21,952 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2021-12-21 22:50:21,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:22,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 22:50:22,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:22,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:50:22,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:22,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:50:22,086 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 [2021-12-21 22:50:22,087 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:50:22,169 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 22 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 76 transitions. Complement of second has 8 states. [2021-12-21 22:50:22,187 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 [2021-12-21 22:50:22,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:50:22,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2021-12-21 22:50:22,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-21 22:50:22,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:22,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-21 22:50:22,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:22,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-21 22:50:22,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:22,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 76 transitions. [2021-12-21 22:50:22,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-21 22:50:22,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 17 states and 24 transitions. [2021-12-21 22:50:22,199 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-21 22:50:22,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-21 22:50:22,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2021-12-21 22:50:22,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:22,200 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-12-21 22:50:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2021-12-21 22:50:22,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-21 22:50:22,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 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) [2021-12-21 22:50:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-12-21 22:50:22,216 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-12-21 22:50:22,216 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-12-21 22:50:22,217 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:50:22,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-12-21 22:50:22,217 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-21 22:50:22,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:22,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:22,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:50:22,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:50:22,218 INFO L791 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 169#L530 assume !(main_~length1~0#1 < 1); 160#L530-2 assume !(main_~length2~0#1 < 1); 161#L533-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 162#L539-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 163#L539-4 main_~i~1#1 := 0; 155#L545-3 [2021-12-21 22:50:22,218 INFO L793 eck$LassoCheckResult]: Loop: 155#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 157#L545-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 155#L545-3 [2021-12-21 22:50:22,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:22,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-12-21 22:50:22,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:22,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603291039] [2021-12-21 22:50:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:22,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:22,227 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:22,234 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:22,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:22,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-12-21 22:50:22,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:22,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589488374] [2021-12-21 22:50:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:22,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:22,253 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:22,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:22,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:22,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-12-21 22:50:22,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:22,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30672150] [2021-12-21 22:50:22,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:22,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:22,285 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:22,298 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:22,518 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 [2021-12-21 22:50:22,546 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:50:22,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:50:22,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:50:22,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:50:22,546 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:50:22,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:22,546 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:50:22,546 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:50:22,546 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration2_Lasso [2021-12-21 22:50:22,546 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:50:22,546 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:50:22,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:22,867 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:50:22,868 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:50:22,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:22,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:22,878 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) [2021-12-21 22:50:22,881 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 [2021-12-21 22:50:22,882 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 [2021-12-21 22:50:22,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:22,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:22,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:22,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:22,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:22,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:22,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:22,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:22,914 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 [2021-12-21 22:50:22,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:22,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:22,915 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) [2021-12-21 22:50:22,921 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 [2021-12-21 22:50:22,921 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 [2021-12-21 22:50:22,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:22,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:22,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:22,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:22,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:22,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:22,948 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:50:22,960 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-21 22:50:22,961 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-21 22:50:22,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:22,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:22,962 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) [2021-12-21 22:50:22,963 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 [2021-12-21 22:50:22,964 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:50:22,980 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-21 22:50:22,980 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:50:22,980 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_2) = -1*ULTIMATE.start_main_~i~1#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_2 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0#1.offset >= 0] [2021-12-21 22:50:23,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-21 22:50:23,034 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2021-12-21 22:50:23,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:23,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 22:50:23,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:23,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:50:23,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:50:23,120 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-21 22:50:23,120 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-21 22:50:23,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-21 22:50:23,216 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 25 states and 38 transitions. Complement of second has 7 states. [2021-12-21 22:50:23,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:50:23,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-21 22:50:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-12-21 22:50:23,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-21 22:50:23,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:23,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-21 22:50:23,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:23,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-21 22:50:23,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:23,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 38 transitions. [2021-12-21 22:50:23,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:50:23,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 18 states and 26 transitions. [2021-12-21 22:50:23,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-21 22:50:23,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-21 22:50:23,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2021-12-21 22:50:23,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:23,220 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-12-21 22:50:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2021-12-21 22:50:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-21 22:50:23,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-12-21 22:50:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2021-12-21 22:50:23,222 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-12-21 22:50:23,222 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2021-12-21 22:50:23,222 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:50:23,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2021-12-21 22:50:23,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:50:23,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:23,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:23,224 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:50:23,224 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:50:23,224 INFO L791 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 297#L530 assume !(main_~length1~0#1 < 1); 288#L530-2 assume !(main_~length2~0#1 < 1); 289#L533-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 290#L539-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 291#L539-4 main_~i~1#1 := 0; 282#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 283#L545-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_subseq } true;subseq_#in~s#1.base, subseq_#in~s#1.offset, subseq_#in~t#1.base, subseq_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc subseq_#res#1;havoc subseq_#t~mem5#1, subseq_#t~mem6#1, subseq_#t~post7#1.base, subseq_#t~post7#1.offset, subseq_#t~post8#1.base, subseq_#t~post8#1.offset, subseq_#t~mem2#1, subseq_#t~mem3#1, subseq_#t~short4#1, subseq_#t~mem9#1, subseq_~s#1.base, subseq_~s#1.offset, subseq_~t#1.base, subseq_~t#1.offset, subseq_~ps~0#1.base, subseq_~ps~0#1.offset, subseq_~pt~0#1.base, subseq_~pt~0#1.offset;subseq_~s#1.base, subseq_~s#1.offset := subseq_#in~s#1.base, subseq_#in~s#1.offset;subseq_~t#1.base, subseq_~t#1.offset := subseq_#in~t#1.base, subseq_#in~t#1.offset;subseq_~ps~0#1.base, subseq_~ps~0#1.offset := subseq_~s#1.base, subseq_~s#1.offset;subseq_~pt~0#1.base, subseq_~pt~0#1.offset := subseq_~t#1.base, subseq_~t#1.offset; 294#L518-5 [2021-12-21 22:50:23,225 INFO L793 eck$LassoCheckResult]: Loop: 294#L518-5 call subseq_#t~mem2#1 := read~int(subseq_~ps~0#1.base, subseq_~ps~0#1.offset, 1);subseq_#t~short4#1 := 0 != subseq_#t~mem2#1; 295#L518-1 assume subseq_#t~short4#1;call subseq_#t~mem3#1 := read~int(subseq_~pt~0#1.base, subseq_~pt~0#1.offset, 1);subseq_#t~short4#1 := 0 != subseq_#t~mem3#1; 298#L518-3 assume !!subseq_#t~short4#1;havoc subseq_#t~mem2#1;havoc subseq_#t~mem3#1;havoc subseq_#t~short4#1;call subseq_#t~mem5#1 := read~int(subseq_~ps~0#1.base, subseq_~ps~0#1.offset, 1);call subseq_#t~mem6#1 := read~int(subseq_~pt~0#1.base, subseq_~pt~0#1.offset, 1); 299#L519 assume !(subseq_#t~mem5#1 == subseq_#t~mem6#1);havoc subseq_#t~mem5#1;havoc subseq_#t~mem6#1; 296#L519-2 subseq_#t~post8#1.base, subseq_#t~post8#1.offset := subseq_~pt~0#1.base, subseq_~pt~0#1.offset;subseq_~pt~0#1.base, subseq_~pt~0#1.offset := subseq_#t~post8#1.base, 1 + subseq_#t~post8#1.offset;havoc subseq_#t~post8#1.base, subseq_#t~post8#1.offset; 294#L518-5 [2021-12-21 22:50:23,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-12-21 22:50:23,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:23,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545205910] [2021-12-21 22:50:23,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:23,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,263 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:23,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 1 times [2021-12-21 22:50:23,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:23,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586569883] [2021-12-21 22:50:23,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:23,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1034036476, now seen corresponding path program 1 times [2021-12-21 22:50:23,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:23,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978945617] [2021-12-21 22:50:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:23,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:50:23,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:50:23,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978945617] [2021-12-21 22:50:23,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978945617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:50:23,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:50:23,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 22:50:23,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706292236] [2021-12-21 22:50:23,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:50:23,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:50:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 22:50:23,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 22:50:23,553 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 11 Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 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) [2021-12-21 22:50:23,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:50:23,616 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-12-21 22:50:23,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 22:50:23,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-12-21 22:50:23,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:50:23,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 19 states and 25 transitions. [2021-12-21 22:50:23,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-21 22:50:23,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-21 22:50:23,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-12-21 22:50:23,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:23,618 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-21 22:50:23,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-12-21 22:50:23,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-12-21 22:50:23,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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) [2021-12-21 22:50:23,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-12-21 22:50:23,620 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-21 22:50:23,620 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-21 22:50:23,620 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 22:50:23,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-12-21 22:50:23,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:50:23,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:23,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:23,621 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:50:23,621 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:50:23,621 INFO L791 eck$LassoCheckResult]: Stem: 347#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 348#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 358#L530 assume !(main_~length1~0#1 < 1); 349#L530-2 assume !(main_~length2~0#1 < 1); 350#L533-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 351#L539-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 352#L539-4 main_~i~1#1 := 0; 343#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 344#L545-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 345#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 346#L545-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_subseq } true;subseq_#in~s#1.base, subseq_#in~s#1.offset, subseq_#in~t#1.base, subseq_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc subseq_#res#1;havoc subseq_#t~mem5#1, subseq_#t~mem6#1, subseq_#t~post7#1.base, subseq_#t~post7#1.offset, subseq_#t~post8#1.base, subseq_#t~post8#1.offset, subseq_#t~mem2#1, subseq_#t~mem3#1, subseq_#t~short4#1, subseq_#t~mem9#1, subseq_~s#1.base, subseq_~s#1.offset, subseq_~t#1.base, subseq_~t#1.offset, subseq_~ps~0#1.base, subseq_~ps~0#1.offset, subseq_~pt~0#1.base, subseq_~pt~0#1.offset;subseq_~s#1.base, subseq_~s#1.offset := subseq_#in~s#1.base, subseq_#in~s#1.offset;subseq_~t#1.base, subseq_~t#1.offset := subseq_#in~t#1.base, subseq_#in~t#1.offset;subseq_~ps~0#1.base, subseq_~ps~0#1.offset := subseq_~s#1.base, subseq_~s#1.offset;subseq_~pt~0#1.base, subseq_~pt~0#1.offset := subseq_~t#1.base, subseq_~t#1.offset; 355#L518-5 [2021-12-21 22:50:23,621 INFO L793 eck$LassoCheckResult]: Loop: 355#L518-5 call subseq_#t~mem2#1 := read~int(subseq_~ps~0#1.base, subseq_~ps~0#1.offset, 1);subseq_#t~short4#1 := 0 != subseq_#t~mem2#1; 356#L518-1 assume subseq_#t~short4#1;call subseq_#t~mem3#1 := read~int(subseq_~pt~0#1.base, subseq_~pt~0#1.offset, 1);subseq_#t~short4#1 := 0 != subseq_#t~mem3#1; 359#L518-3 assume !!subseq_#t~short4#1;havoc subseq_#t~mem2#1;havoc subseq_#t~mem3#1;havoc subseq_#t~short4#1;call subseq_#t~mem5#1 := read~int(subseq_~ps~0#1.base, subseq_~ps~0#1.offset, 1);call subseq_#t~mem6#1 := read~int(subseq_~pt~0#1.base, subseq_~pt~0#1.offset, 1); 360#L519 assume !(subseq_#t~mem5#1 == subseq_#t~mem6#1);havoc subseq_#t~mem5#1;havoc subseq_#t~mem6#1; 357#L519-2 subseq_#t~post8#1.base, subseq_#t~post8#1.offset := subseq_~pt~0#1.base, subseq_~pt~0#1.offset;subseq_~pt~0#1.base, subseq_~pt~0#1.offset := subseq_#t~post8#1.base, 1 + subseq_#t~post8#1.offset;havoc subseq_#t~post8#1.base, subseq_#t~post8#1.offset; 355#L518-5 [2021-12-21 22:50:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2087704584, now seen corresponding path program 1 times [2021-12-21 22:50:23,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:23,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510375437] [2021-12-21 22:50:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:23,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,643 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,659 INFO L85 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 2 times [2021-12-21 22:50:23,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:23,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787485546] [2021-12-21 22:50:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:23,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,671 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,675 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:23,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1834913698, now seen corresponding path program 1 times [2021-12-21 22:50:23,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:23,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342756383] [2021-12-21 22:50:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:23,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 22:50:23,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:50:23,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342756383] [2021-12-21 22:50:23,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342756383] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:50:23,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:50:23,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 22:50:23,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062520507] [2021-12-21 22:50:23,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:50:23,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:50:23,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 22:50:23,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 22:50:23,869 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:50:23,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:50:23,958 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2021-12-21 22:50:23,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 22:50:23,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2021-12-21 22:50:23,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:50:23,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 24 transitions. [2021-12-21 22:50:23,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-21 22:50:23,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-21 22:50:23,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-12-21 22:50:23,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:23,960 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-21 22:50:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-12-21 22:50:23,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-12-21 22:50:23,961 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) [2021-12-21 22:50:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-12-21 22:50:23,961 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-21 22:50:23,961 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-21 22:50:23,961 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-21 22:50:23,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-12-21 22:50:23,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:50:23,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:50:23,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:50:23,962 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:50:23,962 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:50:23,962 INFO L791 eck$LassoCheckResult]: Stem: 409#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 410#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 420#L530 assume !(main_~length1~0#1 < 1); 411#L530-2 assume !(main_~length2~0#1 < 1); 412#L533-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 413#L539-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 414#L539-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 415#L539-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 416#L539-4 main_~i~1#1 := 0; 405#L545-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 406#L545-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 407#L545-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 408#L545-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_subseq } true;subseq_#in~s#1.base, subseq_#in~s#1.offset, subseq_#in~t#1.base, subseq_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc subseq_#res#1;havoc subseq_#t~mem5#1, subseq_#t~mem6#1, subseq_#t~post7#1.base, subseq_#t~post7#1.offset, subseq_#t~post8#1.base, subseq_#t~post8#1.offset, subseq_#t~mem2#1, subseq_#t~mem3#1, subseq_#t~short4#1, subseq_#t~mem9#1, subseq_~s#1.base, subseq_~s#1.offset, subseq_~t#1.base, subseq_~t#1.offset, subseq_~ps~0#1.base, subseq_~ps~0#1.offset, subseq_~pt~0#1.base, subseq_~pt~0#1.offset;subseq_~s#1.base, subseq_~s#1.offset := subseq_#in~s#1.base, subseq_#in~s#1.offset;subseq_~t#1.base, subseq_~t#1.offset := subseq_#in~t#1.base, subseq_#in~t#1.offset;subseq_~ps~0#1.base, subseq_~ps~0#1.offset := subseq_~s#1.base, subseq_~s#1.offset;subseq_~pt~0#1.base, subseq_~pt~0#1.offset := subseq_~t#1.base, subseq_~t#1.offset; 417#L518-5 [2021-12-21 22:50:23,962 INFO L793 eck$LassoCheckResult]: Loop: 417#L518-5 call subseq_#t~mem2#1 := read~int(subseq_~ps~0#1.base, subseq_~ps~0#1.offset, 1);subseq_#t~short4#1 := 0 != subseq_#t~mem2#1; 418#L518-1 assume subseq_#t~short4#1;call subseq_#t~mem3#1 := read~int(subseq_~pt~0#1.base, subseq_~pt~0#1.offset, 1);subseq_#t~short4#1 := 0 != subseq_#t~mem3#1; 421#L518-3 assume !!subseq_#t~short4#1;havoc subseq_#t~mem2#1;havoc subseq_#t~mem3#1;havoc subseq_#t~short4#1;call subseq_#t~mem5#1 := read~int(subseq_~ps~0#1.base, subseq_~ps~0#1.offset, 1);call subseq_#t~mem6#1 := read~int(subseq_~pt~0#1.base, subseq_~pt~0#1.offset, 1); 422#L519 assume !(subseq_#t~mem5#1 == subseq_#t~mem6#1);havoc subseq_#t~mem5#1;havoc subseq_#t~mem6#1; 419#L519-2 subseq_#t~post8#1.base, subseq_#t~post8#1.offset := subseq_~pt~0#1.base, subseq_~pt~0#1.offset;subseq_~pt~0#1.base, subseq_~pt~0#1.offset := subseq_#t~post8#1.base, 1 + subseq_#t~post8#1.offset;havoc subseq_#t~post8#1.base, subseq_#t~post8#1.offset; 417#L518-5 [2021-12-21 22:50:23,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:23,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2021-12-21 22:50:23,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:23,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759191191] [2021-12-21 22:50:23,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:23,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:23,999 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:24,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:24,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 74536249, now seen corresponding path program 3 times [2021-12-21 22:50:24,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:24,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897555153] [2021-12-21 22:50:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:24,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:24,020 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:24,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:24,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:24,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1075475712, now seen corresponding path program 1 times [2021-12-21 22:50:24,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:50:24,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305592708] [2021-12-21 22:50:24,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:50:24,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:50:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:24,051 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:50:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:50:24,062 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:50:24,907 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:50:24,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:50:24,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:50:24,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:50:24,908 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:50:24,908 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:24,908 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:50:24,908 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:50:24,908 INFO L133 ssoRankerPreferences]: Filename of dumped script: subseq-alloca-2.i_Iteration5_Lasso [2021-12-21 22:50:24,908 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:50:24,908 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:50:24,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:24,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:25,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:25,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:25,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:25,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:25,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:25,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:50:26,003 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:50:26,004 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:50:26,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,006 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) [2021-12-21 22:50:26,007 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 [2021-12-21 22:50:26,063 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 [2021-12-21 22:50:26,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,091 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 [2021-12-21 22:50:26,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,093 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) [2021-12-21 22:50:26,095 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 [2021-12-21 22:50:26,095 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 [2021-12-21 22:50:26,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,118 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 [2021-12-21 22:50:26,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,119 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) [2021-12-21 22:50:26,120 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 [2021-12-21 22:50:26,121 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 [2021-12-21 22:50:26,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,153 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 [2021-12-21 22:50:26,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,159 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) [2021-12-21 22:50:26,160 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 [2021-12-21 22:50:26,161 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 [2021-12-21 22:50:26,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,197 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 [2021-12-21 22:50:26,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,199 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) [2021-12-21 22:50:26,199 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 [2021-12-21 22:50:26,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:50:26,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,207 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,226 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 [2021-12-21 22:50:26,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,227 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) [2021-12-21 22:50:26,229 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 [2021-12-21 22:50:26,229 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 [2021-12-21 22:50:26,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,254 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 [2021-12-21 22:50:26,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,255 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) [2021-12-21 22:50:26,258 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 [2021-12-21 22:50:26,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:50:26,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,284 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 [2021-12-21 22:50:26,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,285 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) [2021-12-21 22:50:26,286 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 [2021-12-21 22:50:26,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:50:26,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,310 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 [2021-12-21 22:50:26,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,311 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) [2021-12-21 22:50:26,312 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 [2021-12-21 22:50:26,313 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 [2021-12-21 22:50:26,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-21 22:50:26,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,339 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) [2021-12-21 22:50:26,340 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 [2021-12-21 22:50:26,342 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 [2021-12-21 22:50:26,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-21 22:50:26,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,380 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) [2021-12-21 22:50:26,381 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 [2021-12-21 22:50:26,382 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 [2021-12-21 22:50:26,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,405 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 [2021-12-21 22:50:26,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,406 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) [2021-12-21 22:50:26,407 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 [2021-12-21 22:50:26,408 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 [2021-12-21 22:50:26,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,436 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 [2021-12-21 22:50:26,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,437 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) [2021-12-21 22:50:26,439 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 [2021-12-21 22:50:26,440 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 [2021-12-21 22:50:26,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-21 22:50:26,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,465 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) [2021-12-21 22:50:26,465 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 [2021-12-21 22:50:26,471 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 [2021-12-21 22:50:26,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-21 22:50:26,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,497 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:50:26,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-21 22:50:26,499 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 [2021-12-21 22:50:26,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-21 22:50:26,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,534 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) [2021-12-21 22:50:26,537 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 [2021-12-21 22:50:26,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:50:26,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-21 22:50:26,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,562 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) [2021-12-21 22:50:26,563 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 [2021-12-21 22:50:26,564 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 [2021-12-21 22:50:26,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:50:26,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:50:26,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:50:26,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,590 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 [2021-12-21 22:50:26,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,591 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) [2021-12-21 22:50:26,596 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 [2021-12-21 22:50:26,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:50:26,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,623 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 [2021-12-21 22:50:26,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,624 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) [2021-12-21 22:50:26,632 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 [2021-12-21 22:50:26,632 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 [2021-12-21 22:50:26,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,639 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2021-12-21 22:50:26,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,687 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2021-12-21 22:50:26,687 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2021-12-21 22:50:26,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-21 22:50:26,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,779 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) [2021-12-21 22:50:26,780 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 [2021-12-21 22:50:26,781 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 [2021-12-21 22:50:26,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,811 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 [2021-12-21 22:50:26,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,812 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) [2021-12-21 22:50:26,813 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 [2021-12-21 22:50:26,814 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 [2021-12-21 22:50:26,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-21 22:50:26,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,842 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) [2021-12-21 22:50:26,843 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 [2021-12-21 22:50:26,844 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 [2021-12-21 22:50:26,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,868 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 [2021-12-21 22:50:26,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,869 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) [2021-12-21 22:50:26,870 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 [2021-12-21 22:50:26,871 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 [2021-12-21 22:50:26,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-21 22:50:26,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,909 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:50:26,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-21 22:50:26,911 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 [2021-12-21 22:50:26,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:50:26,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-21 22:50:26,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:26,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:26,936 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:50:26,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-21 22:50:26,938 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 [2021-12-21 22:50:26,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:50:26,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:50:26,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:50:26,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:50:26,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:50:26,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:50:26,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:50:27,018 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2021-12-21 22:50:27,018 INFO L444 ModelExtractionUtils]: 21 out of 58 variables were initially zero. Simplification set additionally 34 variables to zero. [2021-12-21 22:50:27,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:50:27,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:50:27,019 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:50:27,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-21 22:50:27,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:50:27,028 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:50:27,028 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:50:27,028 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_subseq_~pt~0#1.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_2) = -1*ULTIMATE.start_subseq_~pt~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_2 Supporting invariants [] [2021-12-21 22:50:27,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-21 22:50:27,128 INFO L297 tatePredicateManager]: 26 out of 27 supporting invariants were superfluous and have been removed [2021-12-21 22:50:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:50:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:27,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:50:27,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:50:27,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:50:27,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:50:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:50:27,231 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 [2021-12-21 22:50:27,231 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:50:27,250 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 6 states. [2021-12-21 22:50:27,251 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 [2021-12-21 22:50:27,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:50:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-12-21 22:50:27,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 13 letters. Loop has 5 letters. [2021-12-21 22:50:27,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:27,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 18 letters. Loop has 5 letters. [2021-12-21 22:50:27,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:27,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 13 letters. Loop has 10 letters. [2021-12-21 22:50:27,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:50:27,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-12-21 22:50:27,253 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:50:27,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-12-21 22:50:27,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:50:27,253 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:50:27,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:50:27,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:50:27,253 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:50:27,253 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:50:27,253 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:50:27,253 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-21 22:50:27,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:50:27,253 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:50:27,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:50:27,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:50:27 BoogieIcfgContainer [2021-12-21 22:50:27,258 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:50:27,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:50:27,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:50:27,258 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:50:27,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:50:20" (3/4) ... [2021-12-21 22:50:27,260 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:50:27,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:50:27,261 INFO L158 Benchmark]: Toolchain (without parser) took 7593.89ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 61.5MB in the beginning and 63.2MB in the end (delta: -1.7MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2021-12-21 22:50:27,261 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:50:27,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.26ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 64.0MB in the end (delta: -2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:50:27,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.59ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:50:27,261 INFO L158 Benchmark]: Boogie Preprocessor took 34.83ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 60.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:50:27,262 INFO L158 Benchmark]: RCFGBuilder took 301.37ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 49.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 22:50:27,262 INFO L158 Benchmark]: BuchiAutomizer took 6914.99ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 49.0MB in the beginning and 63.2MB in the end (delta: -14.2MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2021-12-21 22:50:27,262 INFO L158 Benchmark]: Witness Printer took 2.22ms. Allocated memory is still 161.5MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:50:27,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.26ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 64.0MB in the end (delta: -2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.59ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 62.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.83ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 60.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.37ms. Allocated memory is still 92.3MB. Free memory was 60.6MB in the beginning and 49.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 6914.99ms. Allocated memory was 92.3MB in the beginning and 161.5MB in the end (delta: 69.2MB). Free memory was 49.0MB in the beginning and 63.2MB in the end (delta: -14.2MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * Witness Printer took 2.22ms. Allocated memory is still 161.5MB. Free memory is still 63.2MB. 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * pt and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 6.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 140 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 78 mSDtfsCounter, 140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital205 mio100 ax111 hnf100 lsp84 ukn76 mio100 lsp48 div100 bol100 ite100 ukn100 eq178 hnf90 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 137ms VariablesStem: 6 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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! [2021-12-21 22:50:27,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-21 22:50:27,500 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