./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrnlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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-memory-alloca/openbsd_cstrnlen-alloca-2.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 20d74f4d70a20b55179c45eafbef37cbb7fed804 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 18:39:52,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 18:39:52,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 18:39:52,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 18:39:52,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 18:39:52,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 18:39:52,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 18:39:52,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 18:39:52,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 18:39:52,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 18:39:52,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 18:39:52,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 18:39:52,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 18:39:52,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 18:39:52,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 18:39:52,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 18:39:52,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 18:39:52,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 18:39:52,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 18:39:52,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 18:39:52,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 18:39:52,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 18:39:52,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 18:39:52,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 18:39:52,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 18:39:52,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 18:39:52,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 18:39:52,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 18:39:52,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 18:39:52,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 18:39:52,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 18:39:52,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 18:39:52,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 18:39:52,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 18:39:52,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 18:39:52,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 18:39:52,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 18:39:52,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 18:39:52,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 18:39:52,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 18:39:52,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 18:39:52,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-07-06 18:39:52,635 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 18:39:52,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 18:39:52,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 18:39:52,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 18:39:52,637 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 18:39:52,637 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 18:39:52,637 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 18:39:52,638 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 18:39:52,638 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 18:39:52,638 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 18:39:52,639 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 18:39:52,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 18:39:52,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 18:39:52,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 18:39:52,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 18:39:52,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 18:39:52,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 18:39:52,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 18:39:52,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 18:39:52,640 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 18:39:52,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 18:39:52,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 18:39:52,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 18:39:52,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 18:39:52,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 18:39:52,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 18:39:52,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 18:39:52,642 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 18:39:52,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20d74f4d70a20b55179c45eafbef37cbb7fed804 [2021-07-06 18:39:52,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 18:39:52,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 18:39:52,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 18:39:52,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 18:39:52,933 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 18:39:52,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrnlen-alloca-2.i [2021-07-06 18:39:52,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e9942d4/66a5847867bd4e14911834c89791aeb1/FLAG244ba4280 [2021-07-06 18:39:53,317 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 18:39:53,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrnlen-alloca-2.i [2021-07-06 18:39:53,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e9942d4/66a5847867bd4e14911834c89791aeb1/FLAG244ba4280 [2021-07-06 18:39:53,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e9942d4/66a5847867bd4e14911834c89791aeb1 [2021-07-06 18:39:53,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 18:39:53,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 18:39:53,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 18:39:53,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 18:39:53,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 18:39:53,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:53,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f3dd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53, skipping insertion in model container [2021-07-06 18:39:53,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:53,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 18:39:53,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 18:39:53,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:39:53,891 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 18:39:53,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:39:53,978 INFO L208 MainTranslator]: Completed translation [2021-07-06 18:39:53,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53 WrapperNode [2021-07-06 18:39:53,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 18:39:53,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 18:39:53,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 18:39:53,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 18:39:53,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:53,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 18:39:54,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 18:39:54,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 18:39:54,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 18:39:54,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 18:39:54,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 18:39:54,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 18:39:54,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 18:39:54,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (1/1) ... [2021-07-06 18:39:54,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:54,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:54,055 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) [2021-07-06 18:39:54,064 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 [2021-07-06 18:39:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-06 18:39:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-06 18:39:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 18:39:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-06 18:39:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 18:39:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 18:39:54,245 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 18:39:54,246 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-06 18:39:54,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:39:54 BoogieIcfgContainer [2021-07-06 18:39:54,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 18:39:54,247 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 18:39:54,247 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 18:39:54,249 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 18:39:54,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:39:54,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 06:39:53" (1/3) ... [2021-07-06 18:39:54,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41d85431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:39:54, skipping insertion in model container [2021-07-06 18:39:54,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:39:54,254 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:39:53" (2/3) ... [2021-07-06 18:39:54,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41d85431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:39:54, skipping insertion in model container [2021-07-06 18:39:54,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:39:54,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:39:54" (3/3) ... [2021-07-06 18:39:54,255 INFO L389 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrnlen-alloca-2.i [2021-07-06 18:39:54,281 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 18:39:54,281 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 18:39:54,281 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 18:39:54,281 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 18:39:54,282 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 18:39:54,282 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 18:39:54,282 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 18:39:54,282 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 18:39:54,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:39:54,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-07-06 18:39:54,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:39:54,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:39:54,304 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-07-06 18:39:54,304 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-07-06 18:39:54,304 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 18:39:54,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:39:54,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-07-06 18:39:54,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:39:54,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:39:54,306 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-07-06 18:39:54,306 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-07-06 18:39:54,310 INFO L791 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L558true assume !(main_~length1~0 < 1); 6#L558-2true assume !(main_~n~0 < 1); 15#L561-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 7#L551-6true [2021-07-06 18:39:54,310 INFO L793 eck$LassoCheckResult]: Loop: 7#L551-6true cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 14#L551-1true assume cstrnlen_#t~short5;call cstrnlen_#t~mem4 := read~int(cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset, 1);cstrnlen_#t~short5 := 0 != cstrnlen_#t~mem4; 3#L551-3true assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~short5;havoc cstrnlen_#t~mem4; 5#L551-5true cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 7#L551-6true [2021-07-06 18:39:54,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:39:54,314 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-07-06 18:39:54,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:39:54,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2770894] [2021-07-06 18:39:54,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:39:54,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:39:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:54,377 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:54,389 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:54,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:39:54,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:39:54,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1511654, now seen corresponding path program 1 times [2021-07-06 18:39:54,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:39:54,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50882906] [2021-07-06 18:39:54,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:39:54,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:39:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:54,414 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:54,421 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:54,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:39:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:39:54,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1298318251, now seen corresponding path program 1 times [2021-07-06 18:39:54,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:39:54,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495215072] [2021-07-06 18:39:54,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:39:54,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:39:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:54,450 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:54,467 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:54,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:39:54,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:54,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-06 18:39:54,686 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-07-06 18:39:54,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:54,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-07-06 18:39:54,749 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:39:54,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:39:54,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:39:54,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:39:54,750 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 18:39:54,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:54,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:39:54,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:39:54,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-2.i_Iteration1_Lasso [2021-07-06 18:39:54,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:39:54,752 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:39:54,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:54,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:39:55,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:39:55,262 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 18:39:55,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,265 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) [2021-07-06 18:39:55,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:39:55,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:39:55,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:39:55,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:39:55,285 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 [2021-07-06 18:39:55,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,319 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 [2021-07-06 18:39:55,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,321 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) [2021-07-06 18:39:55,322 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 [2021-07-06 18:39:55,324 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 [2021-07-06 18:39:55,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:39:55,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:39:55,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:39:55,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,363 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 [2021-07-06 18:39:55,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,365 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) [2021-07-06 18:39:55,365 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 [2021-07-06 18:39:55,367 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 [2021-07-06 18:39:55,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:39:55,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:39:55,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:39:55,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,404 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 [2021-07-06 18:39:55,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,406 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) [2021-07-06 18:39:55,406 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 [2021-07-06 18:39:55,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:39:55,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:39:55,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:39:55,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:39:55,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-07-06 18:39:55,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,443 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) [2021-07-06 18:39:55,444 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 [2021-07-06 18:39:55,445 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 [2021-07-06 18:39:55,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:39:55,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:39:55,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-07-06 18:39:55,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,488 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) [2021-07-06 18:39:55,490 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 [2021-07-06 18:39:55,492 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 [2021-07-06 18:39:55,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:39:55,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:39:55,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-07-06 18:39:55,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,567 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) [2021-07-06 18:39:55,571 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 [2021-07-06 18:39:55,572 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 [2021-07-06 18:39:55,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:39:55,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:39:55,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,611 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 [2021-07-06 18:39:55,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,613 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) [2021-07-06 18:39:55,615 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 [2021-07-06 18:39:55,615 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 [2021-07-06 18:39:55,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:39:55,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:39:55,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:39:55,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-07-06 18:39:55,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,650 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) [2021-07-06 18:39:55,653 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 [2021-07-06 18:39:55,653 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 [2021-07-06 18:39:55,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:39:55,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:39:55,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:39:55,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,686 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 [2021-07-06 18:39:55,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,687 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) [2021-07-06 18:39:55,688 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 [2021-07-06 18:39:55,690 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 [2021-07-06 18:39:55,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:39:55,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:39:55,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,725 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 [2021-07-06 18:39:55,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,726 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) [2021-07-06 18:39:55,727 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 [2021-07-06 18:39:55,728 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 [2021-07-06 18:39:55,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:39:55,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:39:55,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:39:55,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:39:55,754 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 [2021-07-06 18:39:55,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,755 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) [2021-07-06 18:39:55,756 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 [2021-07-06 18:39:55,779 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 [2021-07-06 18:39:55,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:39:55,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:39:55,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:39:55,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:39:55,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:39:55,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:39:55,809 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 18:39:55,856 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-07-06 18:39:55,857 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-07-06 18:39:55,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:39:55,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:39:55,879 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) [2021-07-06 18:39:55,909 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 [2021-07-06 18:39:55,909 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 18:39:55,919 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-07-06 18:39:55,919 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 18:39:55,919 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_cstrnlen_~cp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_cstrnlen_~cp~0.offset Supporting invariants [] [2021-07-06 18:39:55,942 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 [2021-07-06 18:39:55,953 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-07-06 18:39:55,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:39:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:39:56,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-06 18:39:56,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:39:56,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:39:56,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-06 18:39:56,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:39:56,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-06 18:39:56,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-06 18:39:56,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-06 18:39:56,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-06 18:39:56,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 18:39:56,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 18:39:56,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 18:39:56,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-06 18:39:56,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 18:39:56,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 18:39:56,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 18:39:56,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 18:39:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:39:56,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-07-06 18:39:56,105 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 [2021-07-06 18:39:56,106 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:39:56,151 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 45 transitions. Complement of second has 8 states. [2021-07-06 18:39:56,151 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 [2021-07-06 18:39:56,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:39:56,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2021-07-06 18:39:56,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 4 letters. [2021-07-06 18:39:56,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:39:56,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 9 letters. Loop has 4 letters. [2021-07-06 18:39:56,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:39:56,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 5 letters. Loop has 8 letters. [2021-07-06 18:39:56,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:39:56,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. [2021-07-06 18:39:56,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-07-06 18:39:56,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 18 states and 23 transitions. [2021-07-06 18:39:56,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-07-06 18:39:56,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-07-06 18:39:56,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-07-06 18:39:56,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-07-06 18:39:56,160 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-07-06 18:39:56,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-07-06 18:39:56,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-07-06 18:39:56,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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) [2021-07-06 18:39:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-07-06 18:39:56,175 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-07-06 18:39:56,175 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-07-06 18:39:56,175 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 18:39:56,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2021-07-06 18:39:56,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-07-06 18:39:56,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:39:56,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:39:56,176 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 18:39:56,176 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-07-06 18:39:56,177 INFO L791 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 130#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 131#L558 assume !(main_~length1~0 < 1); 132#L558-2 assume !(main_~n~0 < 1); 136#L561-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 141#L551-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 137#L551-1 [2021-07-06 18:39:56,177 INFO L793 eck$LassoCheckResult]: Loop: 137#L551-1 assume !cstrnlen_#t~short5; 126#L551-3 assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~short5;havoc cstrnlen_#t~mem4; 127#L551-5 cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 134#L551-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 137#L551-1 [2021-07-06 18:39:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:39:56,177 INFO L82 PathProgramCache]: Analyzing trace with hash 889572237, now seen corresponding path program 1 times [2021-07-06 18:39:56,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:39:56,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443096346] [2021-07-06 18:39:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:39:56,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:39:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:56,187 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:39:56,195 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:39:56,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:39:56,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:39:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1668346, now seen corresponding path program 1 times [2021-07-06 18:39:56,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:39:56,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472140290] [2021-07-06 18:39:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:39:56,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:39:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:39:56,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-06 18:39:56,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:39:56,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:39:56,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:39:56,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 18:39:56,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472140290] [2021-07-06 18:39:56,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472140290] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 18:39:56,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 18:39:56,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 18:39:56,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097151008] [2021-07-06 18:39:56,224 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-07-06 18:39:56,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 18:39:56,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 18:39:56,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 18:39:56,226 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-07-06 18:39:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 18:39:56,233 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-07-06 18:39:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 18:39:56,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-07-06 18:39:56,234 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:39:56,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-07-06 18:39:56,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 18:39:56,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 18:39:56,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 18:39:56,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:39:56,235 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:39:56,235 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:39:56,235 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:39:56,235 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 18:39:56,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 18:39:56,235 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:39:56,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 18:39:56,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 06:39:56 BoogieIcfgContainer [2021-07-06 18:39:56,239 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 18:39:56,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 18:39:56,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 18:39:56,240 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 18:39:56,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:39:54" (3/4) ... [2021-07-06 18:39:56,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 18:39:56,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 18:39:56,243 INFO L168 Benchmark]: Toolchain (without parser) took 2527.08 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 31.0 MB in the beginning and 43.8 MB in the end (delta: -12.8 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-07-06 18:39:56,243 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory is still 27.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:39:56,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.69 ms. Allocated memory is still 56.6 MB. Free memory was 30.7 MB in the beginning and 30.8 MB in the end (delta: -76.8 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-07-06 18:39:56,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.31 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 29.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 18:39:56,244 INFO L168 Benchmark]: Boogie Preprocessor took 14.08 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:39:56,257 INFO L168 Benchmark]: RCFGBuilder took 217.22 ms. Allocated memory is still 56.6 MB. Free memory was 27.8 MB in the beginning and 25.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-07-06 18:39:56,257 INFO L168 Benchmark]: BuchiAutomizer took 1992.01 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 25.3 MB in the beginning and 43.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-07-06 18:39:56,257 INFO L168 Benchmark]: Witness Printer took 2.41 ms. Allocated memory is still 86.0 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:39:56,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory is still 27.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.69 ms. Allocated memory is still 56.6 MB. Free memory was 30.7 MB in the beginning and 30.8 MB in the end (delta: -76.8 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.31 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 29.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.08 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 217.22 ms. Allocated memory is still 56.6 MB. Free memory was 27.8 MB in the beginning and 25.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1992.01 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 25.3 MB in the beginning and 43.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.41 ms. Allocated memory is still 86.0 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * cp and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 6.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 18 SDslu, 15 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital134 mio100 ax113 hnf98 lsp70 ukn91 mio100 lsp46 div131 bol100 ite100 ukn100 eq157 hnf82 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-07-06 18:39:56,282 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...