./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8073940322b86f31cbfc905281bb42e15edc78a9ca8cdc6bd61dc1df37f3cf2e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:30:59,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:30:59,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:30:59,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:30:59,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:30:59,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:30:59,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:30:59,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:30:59,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:30:59,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:30:59,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:30:59,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:30:59,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:30:59,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:30:59,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:30:59,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:30:59,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:30:59,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:30:59,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:30:59,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:30:59,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:30:59,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:30:59,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:30:59,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:30:59,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:30:59,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:30:59,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:30:59,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:30:59,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:30:59,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:30:59,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:30:59,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:30:59,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:30:59,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:30:59,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:30:59,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:30:59,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:30:59,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:30:59,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:30:59,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:30:59,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:30:59,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-16 09:30:59,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:30:59,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:30:59,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:30:59,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:30:59,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:30:59,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:30:59,383 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:30:59,383 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:30:59,383 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:30:59,384 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:30:59,384 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:30:59,384 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:30:59,385 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:30:59,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:30:59,385 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:30:59,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:30:59,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:30:59,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:30:59,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:30:59,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:30:59,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:30:59,386 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:30:59,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:30:59,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:30:59,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:30:59,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:30:59,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:30:59,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:30:59,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:30:59,389 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:30:59,389 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8073940322b86f31cbfc905281bb42e15edc78a9ca8cdc6bd61dc1df37f3cf2e [2021-12-16 09:30:59,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:30:59,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:30:59,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:30:59,597 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:30:59,597 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:30:59,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.i [2021-12-16 09:30:59,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1857f46/bc08e20201174ca995695513b4746f0f/FLAGc84025ffd [2021-12-16 09:31:00,049 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:31:00,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.i [2021-12-16 09:31:00,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1857f46/bc08e20201174ca995695513b4746f0f/FLAGc84025ffd [2021-12-16 09:31:00,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e1857f46/bc08e20201174ca995695513b4746f0f [2021-12-16 09:31:00,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:31:00,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:31:00,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:31:00,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:31:00,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:31:00,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713ffefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00, skipping insertion in model container [2021-12-16 09:31:00,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:31:00,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:31:00,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:31:00,304 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:31:00,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:31:00,377 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:31:00,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00 WrapperNode [2021-12-16 09:31:00,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:31:00,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:31:00,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:31:00,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:31:00,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,403 INFO L137 Inliner]: procedures = 153, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109 [2021-12-16 09:31:00,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:31:00,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:31:00,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:31:00,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:31:00,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:31:00,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:31:00,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:31:00,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:31:00,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (1/1) ... [2021-12-16 09:31:00,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:00,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:00,445 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) [2021-12-16 09:31:00,447 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 [2021-12-16 09:31:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 09:31:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 09:31:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 09:31:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 09:31:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:31:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:31:00,527 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:31:00,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:31:00,634 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:31:00,638 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:31:00,638 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-16 09:31:00,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:31:00 BoogieIcfgContainer [2021-12-16 09:31:00,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:31:00,641 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:31:00,641 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:31:00,643 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:31:00,644 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:31:00,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:31:00" (1/3) ... [2021-12-16 09:31:00,645 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d433a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:31:00, skipping insertion in model container [2021-12-16 09:31:00,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:31:00,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:31:00" (2/3) ... [2021-12-16 09:31:00,645 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d433a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:31:00, skipping insertion in model container [2021-12-16 09:31:00,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:31:00,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:31:00" (3/3) ... [2021-12-16 09:31:00,646 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrncmp_mixed_alloca.i [2021-12-16 09:31:00,676 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:31:00,676 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:31:00,676 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:31:00,676 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:31:00,676 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:31:00,676 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:31:00,677 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:31:00,677 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:31:00,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:00,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-16 09:31:00,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:00,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:00,703 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-16 09:31:00,703 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:31:00,703 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:31:00,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:00,705 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-12-16 09:31:00,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:00,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:00,706 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-16 09:31:00,706 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:31:00,711 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet216#1, main_#t~nondet217#1, main_#t~malloc218#1.base, main_#t~malloc218#1.offset, main_#t~malloc219#1.base, main_#t~malloc219#1.offset, main_#t~nondet221#1, main_#t~post220#1, main_~i~0#1, main_#t~nondet223#1, main_#t~post222#1, main_~i~1#1, main_#t~nondet224#1, main_#t~ret225#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~nondet216#1;havoc main_#t~nondet216#1;main_~length2~0#1 := main_#t~nondet217#1;havoc main_#t~nondet217#1; 4#L383true assume !(main_~length1~0#1 < 1); 12#L383-2true assume !(main_~length2~0#1 < 1); 13#L386-1true call main_#t~malloc218#1.base, main_#t~malloc218#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc218#1.base, main_#t~malloc218#1.offset;call main_#t~malloc219#1.base, main_#t~malloc219#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc219#1.base, main_#t~malloc219#1.offset;main_~i~0#1 := 0; 25#L391-3true [2021-12-16 09:31:00,711 INFO L793 eck$LassoCheckResult]: Loop: 25#L391-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet221#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet221#1; 6#L391-2true main_#t~post220#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post220#1;havoc main_#t~post220#1; 25#L391-3true [2021-12-16 09:31:00,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:00,715 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-12-16 09:31:00,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:00,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484402796] [2021-12-16 09:31:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:00,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:00,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:00,856 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-12-16 09:31:00,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:00,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079945712] [2021-12-16 09:31:00,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:00,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:00,884 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:00,897 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-12-16 09:31:00,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:00,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056995763] [2021-12-16 09:31:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:00,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:00,932 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:00,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:01,321 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:31:01,322 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:31:01,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:31:01,322 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:31:01,322 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:31:01,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,323 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:31:01,323 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:31:01,323 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp_mixed_alloca.i_Iteration1_Lasso [2021-12-16 09:31:01,323 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:31:01,323 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:31:01,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:01,660 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:31:01,662 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:31:01,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,665 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) [2021-12-16 09:31:01,669 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 [2021-12-16 09:31:01,674 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 [2021-12-16 09:31:01,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:01,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:01,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:01,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:01,711 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 [2021-12-16 09:31:01,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,714 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) [2021-12-16 09:31:01,715 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 [2021-12-16 09:31:01,721 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 [2021-12-16 09:31:01,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:01,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:01,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:01,762 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 [2021-12-16 09:31:01,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,764 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) [2021-12-16 09:31:01,769 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 [2021-12-16 09:31:01,775 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 [2021-12-16 09:31:01,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:01,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:01,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:01,809 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 [2021-12-16 09:31:01,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,810 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) [2021-12-16 09:31:01,818 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 [2021-12-16 09:31:01,823 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 [2021-12-16 09:31:01,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:01,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:01,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:01,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:01,847 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 [2021-12-16 09:31:01,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,848 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) [2021-12-16 09:31:01,849 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 [2021-12-16 09:31:01,850 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 [2021-12-16 09:31:01,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:01,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:01,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:01,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:01,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-16 09:31:01,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,884 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) [2021-12-16 09:31:01,885 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 [2021-12-16 09:31:01,887 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 [2021-12-16 09:31:01,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:01,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:01,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:01,920 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 [2021-12-16 09:31:01,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,921 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) [2021-12-16 09:31:01,922 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 [2021-12-16 09:31:01,924 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 [2021-12-16 09:31:01,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:01,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:01,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:01,956 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 [2021-12-16 09:31:01,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:01,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:01,957 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) [2021-12-16 09:31:01,959 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 [2021-12-16 09:31:01,968 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 [2021-12-16 09:31:01,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:01,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:01,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:01,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:01,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:01,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:01,999 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:31:02,030 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-16 09:31:02,030 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-12-16 09:31:02,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:02,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:02,033 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) [2021-12-16 09:31:02,038 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:31:02,051 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 [2021-12-16 09:31:02,073 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:31:02,073 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:31:02,073 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-16 09:31:02,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-16 09:31:02,105 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-12-16 09:31:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:02,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:31:02,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:02,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 09:31:02,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:02,278 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 [2021-12-16 09:31:02,279 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-12-16 09:31:02,283 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 [2021-12-16 09:31:02,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 60 states and 91 transitions. Complement of second has 7 states. [2021-12-16 09:31:02,315 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 [2021-12-16 09:31:02,318 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) [2021-12-16 09:31:02,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2021-12-16 09:31:02,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-16 09:31:02,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:02,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-16 09:31:02,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:02,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-16 09:31:02,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:02,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 91 transitions. [2021-12-16 09:31:02,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-16 09:31:02,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 18 states and 25 transitions. [2021-12-16 09:31:02,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-16 09:31:02,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-16 09:31:02,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2021-12-16 09:31:02,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:02,330 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-12-16 09:31:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2021-12-16 09:31:02,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-16 09:31:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-12-16 09:31:02,346 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-12-16 09:31:02,346 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-12-16 09:31:02,346 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:31:02,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-12-16 09:31:02,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-12-16 09:31:02,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:02,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:02,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:31:02,348 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-16 09:31:02,348 INFO L791 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet216#1, main_#t~nondet217#1, main_#t~malloc218#1.base, main_#t~malloc218#1.offset, main_#t~malloc219#1.base, main_#t~malloc219#1.offset, main_#t~nondet221#1, main_#t~post220#1, main_~i~0#1, main_#t~nondet223#1, main_#t~post222#1, main_~i~1#1, main_#t~nondet224#1, main_#t~ret225#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~nondet216#1;havoc main_#t~nondet216#1;main_~length2~0#1 := main_#t~nondet217#1;havoc main_#t~nondet217#1; 156#L383 assume !(main_~length1~0#1 < 1); 157#L383-2 assume !(main_~length2~0#1 < 1); 169#L386-1 call main_#t~malloc218#1.base, main_#t~malloc218#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc218#1.base, main_#t~malloc218#1.offset;call main_#t~malloc219#1.base, main_#t~malloc219#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc219#1.base, main_#t~malloc219#1.offset;main_~i~0#1 := 0; 170#L391-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 172#L391-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := main_~length2~0#1 - 1; 162#L396-3 [2021-12-16 09:31:02,348 INFO L793 eck$LassoCheckResult]: Loop: 162#L396-3 assume !!(main_~i~1#1 > 0);call write~int(main_#t~nondet223#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet223#1; 164#L396-2 main_#t~post222#1 := main_~i~1#1;main_~i~1#1 := main_#t~post222#1 - 1;havoc main_#t~post222#1; 162#L396-3 [2021-12-16 09:31:02,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:02,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-12-16 09:31:02,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:02,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577885366] [2021-12-16 09:31:02,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:02,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:02,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:02,378 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:02,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:02,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-12-16 09:31:02,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:02,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758491774] [2021-12-16 09:31:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:02,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:02,386 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:02,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:02,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-12-16 09:31:02,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:02,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658348428] [2021-12-16 09:31:02,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:02,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:02,402 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:02,416 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:02,673 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:31:02,673 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:31:02,673 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:31:02,673 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:31:02,673 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:31:02,673 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:02,673 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:31:02,673 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:31:02,673 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp_mixed_alloca.i_Iteration2_Lasso [2021-12-16 09:31:02,673 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:31:02,673 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:31:02,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:02,989 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:31:02,989 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:31:02,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:02,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,004 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) [2021-12-16 09:31:03,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:03,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:03,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:03,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:03,019 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 [2021-12-16 09:31:03,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,065 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 [2021-12-16 09:31:03,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,067 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) [2021-12-16 09:31:03,069 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 [2021-12-16 09:31:03,070 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 [2021-12-16 09:31:03,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:03,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:03,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:03,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,111 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 [2021-12-16 09:31:03,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,113 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) [2021-12-16 09:31:03,114 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 [2021-12-16 09:31:03,116 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 [2021-12-16 09:31:03,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:03,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:03,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:03,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:03,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,148 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) [2021-12-16 09:31:03,149 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 [2021-12-16 09:31:03,150 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 [2021-12-16 09:31:03,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:03,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:03,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:03,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-16 09:31:03,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,177 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) [2021-12-16 09:31:03,178 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 [2021-12-16 09:31:03,180 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 [2021-12-16 09:31:03,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:03,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:03,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:03,201 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,216 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 [2021-12-16 09:31:03,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,217 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) [2021-12-16 09:31:03,218 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 [2021-12-16 09:31:03,219 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 [2021-12-16 09:31:03,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:03,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:03,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:03,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,250 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 [2021-12-16 09:31:03,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,252 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) [2021-12-16 09:31:03,252 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 [2021-12-16 09:31:03,253 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 [2021-12-16 09:31:03,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:03,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:03,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,293 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 [2021-12-16 09:31:03,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,294 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) [2021-12-16 09:31:03,295 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 [2021-12-16 09:31:03,296 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 [2021-12-16 09:31:03,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:03,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:03,326 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:03,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-16 09:31:03,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,343 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) [2021-12-16 09:31:03,345 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 [2021-12-16 09:31:03,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-16 09:31:03,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:03,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:03,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:03,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:03,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:03,357 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:03,369 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:31:03,381 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-16 09:31:03,381 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-12-16 09:31:03,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:03,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:03,400 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) [2021-12-16 09:31:03,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:31:03,433 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 [2021-12-16 09:31:03,442 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:31:03,443 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:31:03,443 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1) = 1*ULTIMATE.start_main_~i~1#1 Supporting invariants [] [2021-12-16 09:31:03,459 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 [2021-12-16 09:31:03,468 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-12-16 09:31:03,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:03,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:31:03,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:03,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 09:31:03,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:03,519 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 [2021-12-16 09:31:03,519 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-12-16 09:31:03,528 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 27 states and 40 transitions. Complement of second has 6 states. [2021-12-16 09:31:03,528 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 [2021-12-16 09:31:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-12-16 09:31:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-12-16 09:31:03,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-16 09:31:03,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:03,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-16 09:31:03,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:03,530 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-16 09:31:03,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:03,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 40 transitions. [2021-12-16 09:31:03,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:03,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 19 states and 27 transitions. [2021-12-16 09:31:03,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-16 09:31:03,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-16 09:31:03,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2021-12-16 09:31:03,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:03,532 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-12-16 09:31:03,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2021-12-16 09:31:03,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-16 09:31:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-12-16 09:31:03,533 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-12-16 09:31:03,533 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-12-16 09:31:03,533 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 09:31:03,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2021-12-16 09:31:03,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:03,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:03,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:03,534 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:31:03,534 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:31:03,535 INFO L791 eck$LassoCheckResult]: Stem: 281#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 282#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet216#1, main_#t~nondet217#1, main_#t~malloc218#1.base, main_#t~malloc218#1.offset, main_#t~malloc219#1.base, main_#t~malloc219#1.offset, main_#t~nondet221#1, main_#t~post220#1, main_~i~0#1, main_#t~nondet223#1, main_#t~post222#1, main_~i~1#1, main_#t~nondet224#1, main_#t~ret225#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~nondet216#1;havoc main_#t~nondet216#1;main_~length2~0#1 := main_#t~nondet217#1;havoc main_#t~nondet217#1; 279#L383 assume !(main_~length1~0#1 < 1); 280#L383-2 assume !(main_~length2~0#1 < 1); 293#L386-1 call main_#t~malloc218#1.base, main_#t~malloc218#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc218#1.base, main_#t~malloc218#1.offset;call main_#t~malloc219#1.base, main_#t~malloc219#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc219#1.base, main_#t~malloc219#1.offset;main_~i~0#1 := 0; 294#L391-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 296#L391-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := main_~length2~0#1 - 1; 285#L396-3 assume !(main_~i~1#1 > 0); 286#L396-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet224#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem209#1, cstrncmp_#t~short210#1, cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset, cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset, cstrncmp_#t~post205#1, cstrncmp_#t~mem206#1, cstrncmp_#t~mem207#1, cstrncmp_#t~short208#1, cstrncmp_#t~mem213#1, cstrncmp_#t~mem214#1, cstrncmp_#t~ite215#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1, cstrncmp_~uc1~0#1, cstrncmp_~uc2~0#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1;havoc cstrncmp_~uc1~0#1;havoc cstrncmp_~uc2~0#1; 291#L368 assume !(0 == cstrncmp_~n#1); 292#L370-5 [2021-12-16 09:31:03,535 INFO L793 eck$LassoCheckResult]: Loop: 292#L370-5 cstrncmp_#t~post205#1 := cstrncmp_~n#1;cstrncmp_~n#1 := cstrncmp_#t~post205#1 - 1;cstrncmp_#t~short208#1 := cstrncmp_#t~post205#1 > 0; 295#L370-1 assume cstrncmp_#t~short208#1;call cstrncmp_#t~mem206#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);call cstrncmp_#t~mem207#1 := read~int(cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, 1);cstrncmp_#t~short208#1 := cstrncmp_#t~mem206#1 == cstrncmp_#t~mem207#1; 289#L370-3 assume !!cstrncmp_#t~short208#1;havoc cstrncmp_#t~post205#1;havoc cstrncmp_#t~mem206#1;havoc cstrncmp_#t~mem207#1;havoc cstrncmp_#t~short208#1;cstrncmp_#t~short210#1 := 0 == cstrncmp_~n#1; 290#L371 assume cstrncmp_#t~short210#1; 297#L371-2 assume !cstrncmp_#t~short210#1;havoc cstrncmp_#t~mem209#1;havoc cstrncmp_#t~short210#1;cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post211#1.base, 1 + cstrncmp_#t~post211#1.offset;havoc cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset;cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset - 1;havoc cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset; 292#L370-5 [2021-12-16 09:31:03,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:03,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1595220890, now seen corresponding path program 1 times [2021-12-16 09:31:03,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:03,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805023105] [2021-12-16 09:31:03,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:03,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:03,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:03,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:03,560 INFO L85 PathProgramCache]: Analyzing trace with hash 79307716, now seen corresponding path program 1 times [2021-12-16 09:31:03,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:03,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206862082] [2021-12-16 09:31:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:03,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:03,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:03,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:03,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206862082] [2021-12-16 09:31:03,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206862082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:31:03,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:31:03,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 09:31:03,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780025779] [2021-12-16 09:31:03,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:31:03,590 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 09:31:03,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:31:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:31:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:31:03,592 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. cyclomatic complexity: 11 Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:31:03,600 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-12-16 09:31:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:31:03,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-12-16 09:31:03,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:03,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 26 transitions. [2021-12-16 09:31:03,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-16 09:31:03,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-16 09:31:03,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2021-12-16 09:31:03,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:03,602 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-12-16 09:31:03,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2021-12-16 09:31:03,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-16 09:31:03,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 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) [2021-12-16 09:31:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-12-16 09:31:03,603 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-12-16 09:31:03,603 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-12-16 09:31:03,603 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 09:31:03,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2021-12-16 09:31:03,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:03,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:03,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:03,604 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:31:03,604 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:31:03,604 INFO L791 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 327#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet216#1, main_#t~nondet217#1, main_#t~malloc218#1.base, main_#t~malloc218#1.offset, main_#t~malloc219#1.base, main_#t~malloc219#1.offset, main_#t~nondet221#1, main_#t~post220#1, main_~i~0#1, main_#t~nondet223#1, main_#t~post222#1, main_~i~1#1, main_#t~nondet224#1, main_#t~ret225#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~nondet216#1;havoc main_#t~nondet216#1;main_~length2~0#1 := main_#t~nondet217#1;havoc main_#t~nondet217#1; 324#L383 assume !(main_~length1~0#1 < 1); 325#L383-2 assume !(main_~length2~0#1 < 1); 336#L386-1 call main_#t~malloc218#1.base, main_#t~malloc218#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc218#1.base, main_#t~malloc218#1.offset;call main_#t~malloc219#1.base, main_#t~malloc219#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc219#1.base, main_#t~malloc219#1.offset;main_~i~0#1 := 0; 337#L391-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 341#L391-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := main_~length2~0#1 - 1; 330#L396-3 assume !(main_~i~1#1 > 0); 331#L396-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet224#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem209#1, cstrncmp_#t~short210#1, cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset, cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset, cstrncmp_#t~post205#1, cstrncmp_#t~mem206#1, cstrncmp_#t~mem207#1, cstrncmp_#t~short208#1, cstrncmp_#t~mem213#1, cstrncmp_#t~mem214#1, cstrncmp_#t~ite215#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1, cstrncmp_~uc1~0#1, cstrncmp_~uc2~0#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1;havoc cstrncmp_~uc1~0#1;havoc cstrncmp_~uc2~0#1; 338#L368 assume !(0 == cstrncmp_~n#1); 339#L370-5 [2021-12-16 09:31:03,604 INFO L793 eck$LassoCheckResult]: Loop: 339#L370-5 cstrncmp_#t~post205#1 := cstrncmp_~n#1;cstrncmp_~n#1 := cstrncmp_#t~post205#1 - 1;cstrncmp_#t~short208#1 := cstrncmp_#t~post205#1 > 0; 340#L370-1 assume cstrncmp_#t~short208#1;call cstrncmp_#t~mem206#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);call cstrncmp_#t~mem207#1 := read~int(cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, 1);cstrncmp_#t~short208#1 := cstrncmp_#t~mem206#1 == cstrncmp_#t~mem207#1; 334#L370-3 assume !!cstrncmp_#t~short208#1;havoc cstrncmp_#t~post205#1;havoc cstrncmp_#t~mem206#1;havoc cstrncmp_#t~mem207#1;havoc cstrncmp_#t~short208#1;cstrncmp_#t~short210#1 := 0 == cstrncmp_~n#1; 335#L371 assume !cstrncmp_#t~short210#1;call cstrncmp_#t~mem209#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);cstrncmp_#t~short210#1 := 0 == cstrncmp_#t~mem209#1; 342#L371-2 assume !cstrncmp_#t~short210#1;havoc cstrncmp_#t~mem209#1;havoc cstrncmp_#t~short210#1;cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post211#1.base, 1 + cstrncmp_#t~post211#1.offset;havoc cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset;cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset - 1;havoc cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset; 339#L370-5 [2021-12-16 09:31:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1595220890, now seen corresponding path program 2 times [2021-12-16 09:31:03,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:03,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290955139] [2021-12-16 09:31:03,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:03,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:03,615 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:03,642 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:03,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:03,643 INFO L85 PathProgramCache]: Analyzing trace with hash 79307778, now seen corresponding path program 1 times [2021-12-16 09:31:03,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:03,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285447332] [2021-12-16 09:31:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:03,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:03,655 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:03,665 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1988601847, now seen corresponding path program 1 times [2021-12-16 09:31:03,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:03,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488021084] [2021-12-16 09:31:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:03,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:03,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-16 09:31:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:03,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:03,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488021084] [2021-12-16 09:31:03,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488021084] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:31:03,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:31:03,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 09:31:03,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068609270] [2021-12-16 09:31:03,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:31:04,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:31:04,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 09:31:04,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-16 09:31:04,039 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:31:04,185 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2021-12-16 09:31:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 09:31:04,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 43 transitions. [2021-12-16 09:31:04,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:31:04,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 32 states and 40 transitions. [2021-12-16 09:31:04,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-12-16 09:31:04,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-12-16 09:31:04,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2021-12-16 09:31:04,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:04,187 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2021-12-16 09:31:04,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2021-12-16 09:31:04,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-12-16 09:31:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2021-12-16 09:31:04,188 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-12-16 09:31:04,188 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-12-16 09:31:04,188 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-16 09:31:04,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2021-12-16 09:31:04,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:04,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:04,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:04,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:31:04,189 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:31:04,189 INFO L791 eck$LassoCheckResult]: Stem: 403#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 404#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet216#1, main_#t~nondet217#1, main_#t~malloc218#1.base, main_#t~malloc218#1.offset, main_#t~malloc219#1.base, main_#t~malloc219#1.offset, main_#t~nondet221#1, main_#t~post220#1, main_~i~0#1, main_#t~nondet223#1, main_#t~post222#1, main_~i~1#1, main_#t~nondet224#1, main_#t~ret225#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~nondet216#1;havoc main_#t~nondet216#1;main_~length2~0#1 := main_#t~nondet217#1;havoc main_#t~nondet217#1; 401#L383 assume !(main_~length1~0#1 < 1); 402#L383-2 assume !(main_~length2~0#1 < 1); 414#L386-1 call main_#t~malloc218#1.base, main_#t~malloc218#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc218#1.base, main_#t~malloc218#1.offset;call main_#t~malloc219#1.base, main_#t~malloc219#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc219#1.base, main_#t~malloc219#1.offset;main_~i~0#1 := 0; 415#L391-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 419#L391-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := main_~length2~0#1 - 1; 407#L396-3 assume !(main_~i~1#1 > 0); 408#L396-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet224#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem209#1, cstrncmp_#t~short210#1, cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset, cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset, cstrncmp_#t~post205#1, cstrncmp_#t~mem206#1, cstrncmp_#t~mem207#1, cstrncmp_#t~short208#1, cstrncmp_#t~mem213#1, cstrncmp_#t~mem214#1, cstrncmp_#t~ite215#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1, cstrncmp_~uc1~0#1, cstrncmp_~uc2~0#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1;havoc cstrncmp_~uc1~0#1;havoc cstrncmp_~uc2~0#1; 422#L368 assume !(0 == cstrncmp_~n#1); 423#L370-5 cstrncmp_#t~post205#1 := cstrncmp_~n#1;cstrncmp_~n#1 := cstrncmp_#t~post205#1 - 1;cstrncmp_#t~short208#1 := cstrncmp_#t~post205#1 > 0; 418#L370-1 assume !cstrncmp_#t~short208#1; 412#L370-3 [2021-12-16 09:31:04,189 INFO L793 eck$LassoCheckResult]: Loop: 412#L370-3 assume !!cstrncmp_#t~short208#1;havoc cstrncmp_#t~post205#1;havoc cstrncmp_#t~mem206#1;havoc cstrncmp_#t~mem207#1;havoc cstrncmp_#t~short208#1;cstrncmp_#t~short210#1 := 0 == cstrncmp_~n#1; 413#L371 assume !cstrncmp_#t~short210#1;call cstrncmp_#t~mem209#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);cstrncmp_#t~short210#1 := 0 == cstrncmp_#t~mem209#1; 420#L371-2 assume !cstrncmp_#t~short210#1;havoc cstrncmp_#t~mem209#1;havoc cstrncmp_#t~short210#1;cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post211#1.base, 1 + cstrncmp_#t~post211#1.offset;havoc cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset;cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset - 1;havoc cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset; 417#L370-5 cstrncmp_#t~post205#1 := cstrncmp_~n#1;cstrncmp_~n#1 := cstrncmp_#t~post205#1 - 1;cstrncmp_#t~short208#1 := cstrncmp_#t~post205#1 > 0; 421#L370-1 assume cstrncmp_#t~short208#1;call cstrncmp_#t~mem206#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);call cstrncmp_#t~mem207#1 := read~int(cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, 1);cstrncmp_#t~short208#1 := cstrncmp_#t~mem206#1 == cstrncmp_#t~mem207#1; 412#L370-3 [2021-12-16 09:31:04,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,189 INFO L85 PathProgramCache]: Analyzing trace with hash -296047681, now seen corresponding path program 1 times [2021-12-16 09:31:04,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262064775] [2021-12-16 09:31:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,199 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:04,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,208 INFO L85 PathProgramCache]: Analyzing trace with hash 89863848, now seen corresponding path program 2 times [2021-12-16 09:31:04,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772115845] [2021-12-16 09:31:04,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,212 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,217 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:04,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash 271331754, now seen corresponding path program 1 times [2021-12-16 09:31:04,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292216880] [2021-12-16 09:31:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:04,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:04,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:04,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292216880] [2021-12-16 09:31:04,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292216880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:31:04,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:31:04,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:31:04,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270563978] [2021-12-16 09:31:04,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:31:04,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:31:04,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:31:04,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:31:04,438 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:04,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:31:04,442 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-12-16 09:31:04,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:31:04,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2021-12-16 09:31:04,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:04,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 19 states and 24 transitions. [2021-12-16 09:31:04,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-16 09:31:04,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-16 09:31:04,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-12-16 09:31:04,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:04,444 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-16 09:31:04,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-12-16 09:31:04,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-16 09:31:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 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) [2021-12-16 09:31:04,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-12-16 09:31:04,445 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-16 09:31:04,445 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-12-16 09:31:04,445 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-16 09:31:04,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-12-16 09:31:04,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:04,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:04,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:04,446 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:31:04,446 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:31:04,446 INFO L791 eck$LassoCheckResult]: Stem: 458#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 459#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet216#1, main_#t~nondet217#1, main_#t~malloc218#1.base, main_#t~malloc218#1.offset, main_#t~malloc219#1.base, main_#t~malloc219#1.offset, main_#t~nondet221#1, main_#t~post220#1, main_~i~0#1, main_#t~nondet223#1, main_#t~post222#1, main_~i~1#1, main_#t~nondet224#1, main_#t~ret225#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~nondet216#1;havoc main_#t~nondet216#1;main_~length2~0#1 := main_#t~nondet217#1;havoc main_#t~nondet217#1; 456#L383 assume !(main_~length1~0#1 < 1); 457#L383-2 assume !(main_~length2~0#1 < 1); 470#L386-1 call main_#t~malloc218#1.base, main_#t~malloc218#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc218#1.base, main_#t~malloc218#1.offset;call main_#t~malloc219#1.base, main_#t~malloc219#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc219#1.base, main_#t~malloc219#1.offset;main_~i~0#1 := 0; 471#L391-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 473#L391-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := main_~length2~0#1 - 1; 462#L396-3 assume !!(main_~i~1#1 > 0);call write~int(main_#t~nondet223#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet223#1; 463#L396-2 main_#t~post222#1 := main_~i~1#1;main_~i~1#1 := main_#t~post222#1 - 1;havoc main_#t~post222#1; 464#L396-3 assume !(main_~i~1#1 > 0); 465#L396-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet224#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem209#1, cstrncmp_#t~short210#1, cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset, cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset, cstrncmp_#t~post205#1, cstrncmp_#t~mem206#1, cstrncmp_#t~mem207#1, cstrncmp_#t~short208#1, cstrncmp_#t~mem213#1, cstrncmp_#t~mem214#1, cstrncmp_#t~ite215#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1, cstrncmp_~uc1~0#1, cstrncmp_~uc2~0#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1;havoc cstrncmp_~uc1~0#1;havoc cstrncmp_~uc2~0#1; 468#L368 assume !(0 == cstrncmp_~n#1); 469#L370-5 [2021-12-16 09:31:04,446 INFO L793 eck$LassoCheckResult]: Loop: 469#L370-5 cstrncmp_#t~post205#1 := cstrncmp_~n#1;cstrncmp_~n#1 := cstrncmp_#t~post205#1 - 1;cstrncmp_#t~short208#1 := cstrncmp_#t~post205#1 > 0; 472#L370-1 assume cstrncmp_#t~short208#1;call cstrncmp_#t~mem206#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);call cstrncmp_#t~mem207#1 := read~int(cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, 1);cstrncmp_#t~short208#1 := cstrncmp_#t~mem206#1 == cstrncmp_#t~mem207#1; 466#L370-3 assume !!cstrncmp_#t~short208#1;havoc cstrncmp_#t~post205#1;havoc cstrncmp_#t~mem206#1;havoc cstrncmp_#t~mem207#1;havoc cstrncmp_#t~short208#1;cstrncmp_#t~short210#1 := 0 == cstrncmp_~n#1; 467#L371 assume !cstrncmp_#t~short210#1;call cstrncmp_#t~mem209#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);cstrncmp_#t~short210#1 := 0 == cstrncmp_#t~mem209#1; 474#L371-2 assume !cstrncmp_#t~short210#1;havoc cstrncmp_#t~mem209#1;havoc cstrncmp_#t~short210#1;cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post211#1.base, 1 + cstrncmp_#t~post211#1.offset;havoc cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset;cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset - 1;havoc cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset; 469#L370-5 [2021-12-16 09:31:04,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash -294332616, now seen corresponding path program 1 times [2021-12-16 09:31:04,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722533845] [2021-12-16 09:31:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:04,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,464 INFO L85 PathProgramCache]: Analyzing trace with hash 79307778, now seen corresponding path program 3 times [2021-12-16 09:31:04,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093120226] [2021-12-16 09:31:04,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,468 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1049507627, now seen corresponding path program 1 times [2021-12-16 09:31:04,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350840058] [2021-12-16 09:31:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 09:31:04,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:31:04,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350840058] [2021-12-16 09:31:04,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350840058] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:31:04,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:31:04,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 09:31:04,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919922648] [2021-12-16 09:31:04,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:31:04,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:31:04,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 09:31:04,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-16 09:31:04,687 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:04,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:31:04,740 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-12-16 09:31:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 09:31:04,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2021-12-16 09:31:04,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:04,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 20 states and 24 transitions. [2021-12-16 09:31:04,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-16 09:31:04,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-16 09:31:04,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-12-16 09:31:04,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:04,742 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-12-16 09:31:04,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-12-16 09:31:04,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-12-16 09:31:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 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) [2021-12-16 09:31:04,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-12-16 09:31:04,743 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-16 09:31:04,743 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-12-16 09:31:04,743 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-16 09:31:04,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2021-12-16 09:31:04,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:31:04,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:31:04,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:31:04,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:31:04,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:31:04,744 INFO L791 eck$LassoCheckResult]: Stem: 527#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 528#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet216#1, main_#t~nondet217#1, main_#t~malloc218#1.base, main_#t~malloc218#1.offset, main_#t~malloc219#1.base, main_#t~malloc219#1.offset, main_#t~nondet221#1, main_#t~post220#1, main_~i~0#1, main_#t~nondet223#1, main_#t~post222#1, main_~i~1#1, main_#t~nondet224#1, main_#t~ret225#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~nondet216#1;havoc main_#t~nondet216#1;main_~length2~0#1 := main_#t~nondet217#1;havoc main_#t~nondet217#1; 525#L383 assume !(main_~length1~0#1 < 1); 526#L383-2 assume !(main_~length2~0#1 < 1); 539#L386-1 call main_#t~malloc218#1.base, main_#t~malloc218#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc218#1.base, main_#t~malloc218#1.offset;call main_#t~malloc219#1.base, main_#t~malloc219#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc219#1.base, main_#t~malloc219#1.offset;main_~i~0#1 := 0; 540#L391-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet221#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet221#1; 529#L391-2 main_#t~post220#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post220#1;havoc main_#t~post220#1; 530#L391-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 542#L391-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := main_~length2~0#1 - 1; 531#L396-3 assume !!(main_~i~1#1 > 0);call write~int(main_#t~nondet223#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet223#1; 532#L396-2 main_#t~post222#1 := main_~i~1#1;main_~i~1#1 := main_#t~post222#1 - 1;havoc main_#t~post222#1; 533#L396-3 assume !(main_~i~1#1 > 0); 534#L396-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrncmp } true;cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset, cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset, cstrncmp_#in~n#1 := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, main_#t~nondet224#1;havoc cstrncmp_#res#1;havoc cstrncmp_#t~mem209#1, cstrncmp_#t~short210#1, cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset, cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset, cstrncmp_#t~post205#1, cstrncmp_#t~mem206#1, cstrncmp_#t~mem207#1, cstrncmp_#t~short208#1, cstrncmp_#t~mem213#1, cstrncmp_#t~mem214#1, cstrncmp_#t~ite215#1, cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, cstrncmp_~n#1, cstrncmp_~uc1~0#1, cstrncmp_~uc2~0#1;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#in~s1#1.base, cstrncmp_#in~s1#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#in~s2#1.base, cstrncmp_#in~s2#1.offset;cstrncmp_~n#1 := cstrncmp_#in~n#1;havoc cstrncmp_~uc1~0#1;havoc cstrncmp_~uc2~0#1; 537#L368 assume !(0 == cstrncmp_~n#1); 538#L370-5 [2021-12-16 09:31:04,744 INFO L793 eck$LassoCheckResult]: Loop: 538#L370-5 cstrncmp_#t~post205#1 := cstrncmp_~n#1;cstrncmp_~n#1 := cstrncmp_#t~post205#1 - 1;cstrncmp_#t~short208#1 := cstrncmp_#t~post205#1 > 0; 541#L370-1 assume cstrncmp_#t~short208#1;call cstrncmp_#t~mem206#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);call cstrncmp_#t~mem207#1 := read~int(cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset, 1);cstrncmp_#t~short208#1 := cstrncmp_#t~mem206#1 == cstrncmp_#t~mem207#1; 535#L370-3 assume !!cstrncmp_#t~short208#1;havoc cstrncmp_#t~post205#1;havoc cstrncmp_#t~mem206#1;havoc cstrncmp_#t~mem207#1;havoc cstrncmp_#t~short208#1;cstrncmp_#t~short210#1 := 0 == cstrncmp_~n#1; 536#L371 assume !cstrncmp_#t~short210#1;call cstrncmp_#t~mem209#1 := read~int(cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset, 1);cstrncmp_#t~short210#1 := 0 == cstrncmp_#t~mem209#1; 543#L371-2 assume !cstrncmp_#t~short210#1;havoc cstrncmp_#t~mem209#1;havoc cstrncmp_#t~short210#1;cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset := cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset;cstrncmp_~s1#1.base, cstrncmp_~s1#1.offset := cstrncmp_#t~post211#1.base, 1 + cstrncmp_#t~post211#1.offset;havoc cstrncmp_#t~post211#1.base, cstrncmp_#t~post211#1.offset;cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset := cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset;cstrncmp_~s2#1.base, cstrncmp_~s2#1.offset := cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset - 1;havoc cstrncmp_#t~post212#1.base, cstrncmp_#t~post212#1.offset; 538#L370-5 [2021-12-16 09:31:04,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1313217430, now seen corresponding path program 1 times [2021-12-16 09:31:04,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146123035] [2021-12-16 09:31:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,755 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,775 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:04,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,776 INFO L85 PathProgramCache]: Analyzing trace with hash 79307778, now seen corresponding path program 4 times [2021-12-16 09:31:04,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185600987] [2021-12-16 09:31:04,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,780 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:04,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1018233459, now seen corresponding path program 1 times [2021-12-16 09:31:04,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:31:04,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378326100] [2021-12-16 09:31:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:31:04,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:31:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,793 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:31:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:31:04,803 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:31:05,585 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:31:05,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:31:05,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:31:05,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:31:05,585 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:31:05,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:05,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:31:05,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:31:05,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp_mixed_alloca.i_Iteration7_Lasso [2021-12-16 09:31:05,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:31:05,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:31:05,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:05,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:31:06,470 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:31:06,470 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:31:06,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,471 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) [2021-12-16 09:31:06,472 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 [2021-12-16 09:31:06,473 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 [2021-12-16 09:31:06,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,498 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 [2021-12-16 09:31:06,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,500 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) [2021-12-16 09:31:06,500 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 [2021-12-16 09:31:06,502 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 [2021-12-16 09:31:06,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-16 09:31:06,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,532 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) [2021-12-16 09:31:06,532 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 [2021-12-16 09:31:06,534 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 [2021-12-16 09:31:06,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:06,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,579 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) [2021-12-16 09:31:06,580 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 [2021-12-16 09:31:06,581 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 [2021-12-16 09:31:06,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,625 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 [2021-12-16 09:31:06,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,626 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) [2021-12-16 09:31:06,639 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 [2021-12-16 09:31:06,640 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 [2021-12-16 09:31:06,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:06,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,668 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) [2021-12-16 09:31:06,668 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 [2021-12-16 09:31:06,670 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 [2021-12-16 09:31:06,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:06,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:06,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,693 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 [2021-12-16 09:31:06,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,694 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) [2021-12-16 09:31:06,694 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 [2021-12-16 09:31:06,696 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 [2021-12-16 09:31:06,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,717 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 [2021-12-16 09:31:06,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,718 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) [2021-12-16 09:31:06,719 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 [2021-12-16 09:31:06,721 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 [2021-12-16 09:31:06,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,743 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 [2021-12-16 09:31:06,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,745 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) [2021-12-16 09:31:06,746 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 [2021-12-16 09:31:06,747 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 [2021-12-16 09:31:06,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,778 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 [2021-12-16 09:31:06,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,779 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) [2021-12-16 09:31:06,779 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 [2021-12-16 09:31:06,783 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 [2021-12-16 09:31:06,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-16 09:31:06,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,827 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) [2021-12-16 09:31:06,832 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 [2021-12-16 09:31:06,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,841 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 [2021-12-16 09:31:06,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,858 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 [2021-12-16 09:31:06,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,859 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) [2021-12-16 09:31:06,860 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 [2021-12-16 09:31:06,861 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 [2021-12-16 09:31:06,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:31:06,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:31:06,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:31:06,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,883 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 [2021-12-16 09:31:06,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,884 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) [2021-12-16 09:31:06,885 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 [2021-12-16 09:31:06,886 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 [2021-12-16 09:31:06,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,893 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:06,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:06,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,911 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 [2021-12-16 09:31:06,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,912 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) [2021-12-16 09:31:06,917 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 [2021-12-16 09:31:06,918 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 [2021-12-16 09:31:06,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:06,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:06,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,955 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 [2021-12-16 09:31:06,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,956 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) [2021-12-16 09:31:06,957 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 [2021-12-16 09:31:06,958 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 [2021-12-16 09:31:06,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,964 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:06,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:06,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:06,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:06,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:06,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:06,982 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) [2021-12-16 09:31:06,983 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 [2021-12-16 09:31:06,984 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 [2021-12-16 09:31:06,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:06,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:06,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:06,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:06,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:06,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:07,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:07,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:07,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:07,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:07,023 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) [2021-12-16 09:31:07,024 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 [2021-12-16 09:31:07,026 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 [2021-12-16 09:31:07,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:07,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:07,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:07,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:07,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:07,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:07,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:31:07,067 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 [2021-12-16 09:31:07,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:07,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:07,068 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) [2021-12-16 09:31:07,069 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 [2021-12-16 09:31:07,070 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 [2021-12-16 09:31:07,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:31:07,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:31:07,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:31:07,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:31:07,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:31:07,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:31:07,107 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:31:07,142 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-16 09:31:07,143 INFO L444 ModelExtractionUtils]: 18 out of 52 variables were initially zero. Simplification set additionally 31 variables to zero. [2021-12-16 09:31:07,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:31:07,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:31:07,144 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) [2021-12-16 09:31:07,145 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 [2021-12-16 09:31:07,146 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:31:07,155 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:31:07,155 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:31:07,155 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc218#1.base)_3, ULTIMATE.start_cstrncmp_~s2#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc218#1.base)_3 + 2*ULTIMATE.start_cstrncmp_~s2#1.offset Supporting invariants [] [2021-12-16 09:31:07,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-16 09:31:07,222 INFO L297 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2021-12-16 09:31:07,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:31:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:07,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:31:07,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:31:07,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-16 09:31:07,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:31:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:31:07,377 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-12-16 09:31:07,377 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:07,426 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 29 transitions. Complement of second has 8 states. [2021-12-16 09:31:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-16 09:31:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:31:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2021-12-16 09:31:07,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 14 letters. Loop has 5 letters. [2021-12-16 09:31:07,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:07,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 19 letters. Loop has 5 letters. [2021-12-16 09:31:07,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:07,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 14 letters. Loop has 10 letters. [2021-12-16 09:31:07,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:31:07,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2021-12-16 09:31:07,428 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:31:07,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-12-16 09:31:07,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 09:31:07,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 09:31:07,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 09:31:07,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:31:07,428 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:31:07,428 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:31:07,428 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:31:07,428 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-16 09:31:07,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 09:31:07,428 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:31:07,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 09:31:07,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:31:07 BoogieIcfgContainer [2021-12-16 09:31:07,433 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:31:07,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:31:07,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:31:07,433 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:31:07,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:31:00" (3/4) ... [2021-12-16 09:31:07,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 09:31:07,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:31:07,441 INFO L158 Benchmark]: Toolchain (without parser) took 7375.64ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 65.3MB in the beginning and 97.2MB in the end (delta: -31.9MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-12-16 09:31:07,442 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:31:07,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.00ms. Allocated memory is still 90.2MB. Free memory was 65.1MB in the beginning and 54.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 09:31:07,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.88ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 52.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:31:07,443 INFO L158 Benchmark]: Boogie Preprocessor took 16.34ms. Allocated memory is still 90.2MB. Free memory was 52.6MB in the beginning and 51.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 09:31:07,443 INFO L158 Benchmark]: RCFGBuilder took 218.74ms. Allocated memory is still 90.2MB. Free memory was 51.3MB in the beginning and 63.7MB in the end (delta: -12.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2021-12-16 09:31:07,443 INFO L158 Benchmark]: BuchiAutomizer took 6792.18ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 63.7MB in the beginning and 97.2MB in the end (delta: -33.5MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2021-12-16 09:31:07,443 INFO L158 Benchmark]: Witness Printer took 8.03ms. Allocated memory is still 159.4MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:31:07,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.00ms. Allocated memory is still 90.2MB. Free memory was 65.1MB in the beginning and 54.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.88ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 52.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.34ms. Allocated memory is still 90.2MB. Free memory was 52.6MB in the beginning and 51.4MB in the end (delta: 1.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 218.74ms. Allocated memory is still 90.2MB. Free memory was 51.3MB in the beginning and 63.7MB in the end (delta: -12.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6792.18ms. Allocated memory was 90.2MB in the beginning and 159.4MB in the end (delta: 69.2MB). Free memory was 63.7MB in the beginning and 97.2MB in the end (delta: -33.5MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Witness Printer took 8.03ms. Allocated memory is still 159.4MB. Free memory is still 97.2MB. 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 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length1 * sizeof(char))] + 2 * s2 and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.7s and 8 iterations. TraceHistogramMax:1. Analysis of lassos took 5.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 7. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 355 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 132 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital176 mio100 ax100 hnf99 lsp91 ukn85 mio100 lsp47 div100 bol100 ite100 ukn100 eq180 hnf90 smp97 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-16 09:31:07,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-16 09:31:07,676 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