./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-dietlibc/strspn.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 aca5f83919a6623f93755f2c57c9c6598ba71e3b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:37:10,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:37:10,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:37:10,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:37:10,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:37:10,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:37:10,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:37:10,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:37:10,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:37:10,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:37:10,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:37:10,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:37:10,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:37:10,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:37:10,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:37:10,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:37:10,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:37:10,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:37:10,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:37:10,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:37:10,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:37:10,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:37:10,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:37:10,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:37:10,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:37:10,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:37:10,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:37:10,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:37:10,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:37:10,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:37:10,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:37:10,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:37:10,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:37:10,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:37:10,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:37:10,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:37:10,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:37:10,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:37:10,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:37:10,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:37:10,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:37:10,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:37:10,697 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:37:10,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:37:10,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:37:10,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:37:10,700 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:37:10,701 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:37:10,701 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:37:10,701 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:37:10,701 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:37:10,701 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:37:10,702 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:37:10,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:37:10,703 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:37:10,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:37:10,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:37:10,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:37:10,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:37:10,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:37:10,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:37:10,704 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:37:10,705 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:37:10,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:37:10,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:37:10,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:37:10,705 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:37:10,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:37:10,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:37:10,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:37:10,706 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:37:10,707 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:37:10,707 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> aca5f83919a6623f93755f2c57c9c6598ba71e3b [2020-10-20 06:37:10,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:37:10,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:37:10,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:37:10,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:37:10,982 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:37:10,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strspn.i [2020-10-20 06:37:11,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3cd37f1/56c146c7d8b7439ead9a423625c5292c/FLAGa16e881c6 [2020-10-20 06:37:11,650 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:37:11,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strspn.i [2020-10-20 06:37:11,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3cd37f1/56c146c7d8b7439ead9a423625c5292c/FLAGa16e881c6 [2020-10-20 06:37:12,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef3cd37f1/56c146c7d8b7439ead9a423625c5292c [2020-10-20 06:37:12,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:37:12,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:37:12,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:37:12,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:37:12,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:37:12,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dbbf891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12, skipping insertion in model container [2020-10-20 06:37:12,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:37:12,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:37:12,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:37:12,489 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:37:12,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:37:12,588 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:37:12,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12 WrapperNode [2020-10-20 06:37:12,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:37:12,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:37:12,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:37:12,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:37:12,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:37:12,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:37:12,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:37:12,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:37:12,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... [2020-10-20 06:37:12,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:37:12,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:37:12,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:37:12,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:37:12,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:37:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:37:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:37:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:37:12,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:37:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:37:13,035 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:37:13,035 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 06:37:13,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:13 BoogieIcfgContainer [2020-10-20 06:37:13,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:37:13,038 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:37:13,038 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:37:13,042 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:37:13,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:13,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:37:12" (1/3) ... [2020-10-20 06:37:13,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74d7f6f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:37:13, skipping insertion in model container [2020-10-20 06:37:13,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:13,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:12" (2/3) ... [2020-10-20 06:37:13,047 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74d7f6f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:37:13, skipping insertion in model container [2020-10-20 06:37:13,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:13,048 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:13" (3/3) ... [2020-10-20 06:37:13,050 INFO L373 chiAutomizerObserver]: Analyzing ICFG strspn.i [2020-10-20 06:37:13,108 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:37:13,109 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:37:13,109 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:37:13,110 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:37:13,110 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:37:13,110 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:37:13,110 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:37:13,110 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:37:13,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-20 06:37:13,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:13,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:13,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:13,160 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:37:13,160 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:13,160 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:37:13,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-20 06:37:13,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:13,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:13,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:13,164 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:37:13,164 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:13,173 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 9#L521true assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 6#L525true assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 19#L510-4true [2020-10-20 06:37:13,173 INFO L796 eck$LassoCheckResult]: Loop: 19#L510-4true call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 12#L510-1true assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 4#L511-6true assume !true; 5#L511-7true call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 7#L512true assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 15#L510-3true strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 19#L510-4true [2020-10-20 06:37:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,181 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-10-20 06:37:13,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600227519] [2020-10-20 06:37:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,406 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:13,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1366197546, now seen corresponding path program 1 times [2020-10-20 06:37:13,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686356437] [2020-10-20 06:37:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:13,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686356437] [2020-10-20 06:37:13,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:13,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:37:13,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35297453] [2020-10-20 06:37:13,474 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:37:13,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:13,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 06:37:13,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:37:13,489 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-20 06:37:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:13,496 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-10-20 06:37:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 06:37:13,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-10-20 06:37:13,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:13,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 15 transitions. [2020-10-20 06:37:13,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-20 06:37:13,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-20 06:37:13,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2020-10-20 06:37:13,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:37:13,506 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-20 06:37:13,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2020-10-20 06:37:13,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-20 06:37:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 06:37:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-10-20 06:37:13,548 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-20 06:37:13,548 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-20 06:37:13,548 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:37:13,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2020-10-20 06:37:13,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-20 06:37:13,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:13,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:13,550 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:37:13,550 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:13,551 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 51#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 52#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 48#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 49#L510-4 [2020-10-20 06:37:13,551 INFO L796 eck$LassoCheckResult]: Loop: 49#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 55#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 44#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 45#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 53#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem6;havoc strspn_#t~mem4;havoc strspn_#t~mem5;havoc strspn_#t~short7; 46#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 47#L512 assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 50#L510-3 strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 49#L510-4 [2020-10-20 06:37:13,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,551 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2020-10-20 06:37:13,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005688693] [2020-10-20 06:37:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,590 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:13,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1786909933, now seen corresponding path program 1 times [2020-10-20 06:37:13,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684618602] [2020-10-20 06:37:13,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,602 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,630 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:13,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1162005510, now seen corresponding path program 1 times [2020-10-20 06:37:13,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:13,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830361131] [2020-10-20 06:37:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:13,734 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:13,742 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:13,942 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-20 06:37:14,394 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-20 06:37:14,519 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:14,520 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:14,520 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:14,520 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:14,520 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:14,521 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:14,521 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:14,521 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:14,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration2_Lasso [2020-10-20 06:37:14,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:14,522 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:14,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:14,900 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-20 06:37:15,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:15,473 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:15,478 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:15,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:15,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:15,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:15,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:15,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:15,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:15,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:15,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:15,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:15,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:15,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:15,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:16,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:16,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:16,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:16,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:16,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:16,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:16,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:16,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:16,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,125 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 06:37:16,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,126 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:37:16,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:16,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,159 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:16,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:16,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:16,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:16,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:16,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:16,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:16,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:16,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:16,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,307 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:16,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:16,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:16,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:16,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:16,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:16,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:16,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:16,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:16,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,402 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:16,524 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-10-20 06:37:16,524 INFO L444 ModelExtractionUtils]: 17 out of 25 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:16,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:16,546 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:16,546 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:16,547 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strspn_~s.base)_1, ULTIMATE.start_strspn_~s.offset) = 1*v_rep(select #length ULTIMATE.start_strspn_~s.base)_1 - 1*ULTIMATE.start_strspn_~s.offset Supporting invariants [] [2020-10-20 06:37:16,626 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-10-20 06:37:16,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:16,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:37:16,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:37:16,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:16,744 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 [2020-10-20 06:37:16,745 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-10-20 06:37:16,804 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 22 states and 27 transitions. Complement of second has 4 states. [2020-10-20 06:37:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:37:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-10-20 06:37:16,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2020-10-20 06:37:16,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:16,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2020-10-20 06:37:16,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:16,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 16 letters. [2020-10-20 06:37:16,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:16,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2020-10-20 06:37:16,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:16,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 19 states and 24 transitions. [2020-10-20 06:37:16,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-20 06:37:16,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-20 06:37:16,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-10-20 06:37:16,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:16,822 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-20 06:37:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-10-20 06:37:16,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 06:37:16,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 06:37:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-10-20 06:37:16,828 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-20 06:37:16,828 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-20 06:37:16,828 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:37:16,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-10-20 06:37:16,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:16,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:16,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:16,833 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,833 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:16,833 INFO L794 eck$LassoCheckResult]: Stem: 184#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 180#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 181#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 177#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 178#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 185#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 171#L511-6 [2020-10-20 06:37:16,833 INFO L796 eck$LassoCheckResult]: Loop: 171#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 172#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 182#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem6;havoc strspn_#t~mem4;havoc strspn_#t~mem5;havoc strspn_#t~short7; 187#L511-5 strspn_#t~post3.base, strspn_#t~post3.offset := strspn_~a~0.base, strspn_~a~0.offset;strspn_~a~0.base, strspn_~a~0.offset := strspn_#t~post3.base, 1 + strspn_#t~post3.offset;havoc strspn_#t~post3.base, strspn_#t~post3.offset; 171#L511-6 [2020-10-20 06:37:16,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,834 INFO L82 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2020-10-20 06:37:16,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862335160] [2020-10-20 06:37:16,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 1 times [2020-10-20 06:37:16,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796483225] [2020-10-20 06:37:16,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,928 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,928 INFO L82 PathProgramCache]: Analyzing trace with hash 736220242, now seen corresponding path program 1 times [2020-10-20 06:37:16,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404739158] [2020-10-20 06:37:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,978 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:17,080 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-10-20 06:37:17,485 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 99 [2020-10-20 06:37:17,608 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-20 06:37:17,610 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:17,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:17,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:17,611 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:17,611 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:17,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:17,611 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:17,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:17,611 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration3_Lasso [2020-10-20 06:37:17,611 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:17,611 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:17,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:17,926 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-10-20 06:37:18,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,583 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:18,583 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:18,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:18,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:18,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:18,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:18,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:18,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:18,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:18,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:18,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:18,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:18,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:18,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,720 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:18,768 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-20 06:37:18,768 INFO L444 ModelExtractionUtils]: 8 out of 37 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:18,774 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,777 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:18,777 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:18,777 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2, ULTIMATE.start_strspn_~a~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2 - 1*ULTIMATE.start_strspn_~a~0.offset Supporting invariants [] [2020-10-20 06:37:18,853 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2020-10-20 06:37:18,856 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:18,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:37:18,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:18,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:18,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:18,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:18,975 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 06:37:18,975 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-20 06:37:19,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 48 states and 60 transitions. Complement of second has 6 states. [2020-10-20 06:37:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:37:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-20 06:37:19,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-20 06:37:19,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:19,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2020-10-20 06:37:19,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:19,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 8 letters. [2020-10-20 06:37:19,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:19,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2020-10-20 06:37:19,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:19,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 40 transitions. [2020-10-20 06:37:19,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-20 06:37:19,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-20 06:37:19,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2020-10-20 06:37:19,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:19,049 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-10-20 06:37:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2020-10-20 06:37:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2020-10-20 06:37:19,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 06:37:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-10-20 06:37:19,055 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-20 06:37:19,055 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-20 06:37:19,055 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:37:19,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2020-10-20 06:37:19,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:19,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:19,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:19,059 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:19,059 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:19,059 INFO L794 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 370#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 371#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 367#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 368#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 377#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 378#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 373#L511-1 assume !strspn_#t~short7; 374#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem6;havoc strspn_#t~mem4;havoc strspn_#t~mem5;havoc strspn_#t~short7; 365#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 366#L512 assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 369#L510-3 strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 380#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 376#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 361#L511-6 [2020-10-20 06:37:19,059 INFO L796 eck$LassoCheckResult]: Loop: 361#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 362#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 372#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem6;havoc strspn_#t~mem4;havoc strspn_#t~mem5;havoc strspn_#t~short7; 379#L511-5 strspn_#t~post3.base, strspn_#t~post3.offset := strspn_~a~0.base, strspn_~a~0.offset;strspn_~a~0.base, strspn_~a~0.offset := strspn_#t~post3.base, 1 + strspn_#t~post3.offset;havoc strspn_#t~post3.base, strspn_#t~post3.offset; 361#L511-6 [2020-10-20 06:37:19,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1779209729, now seen corresponding path program 1 times [2020-10-20 06:37:19,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:19,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615034895] [2020-10-20 06:37:19,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:19,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615034895] [2020-10-20 06:37:19,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:19,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:37:19,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394587959] [2020-10-20 06:37:19,151 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:19,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 2 times [2020-10-20 06:37:19,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:19,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241144601] [2020-10-20 06:37:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,171 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:19,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:19,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:37:19,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:37:19,288 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-10-20 06:37:19,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:19,326 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2020-10-20 06:37:19,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:37:19,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2020-10-20 06:37:19,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-20 06:37:19,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 32 states and 38 transitions. [2020-10-20 06:37:19,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-20 06:37:19,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 06:37:19,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 38 transitions. [2020-10-20 06:37:19,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:19,329 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-20 06:37:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 38 transitions. [2020-10-20 06:37:19,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2020-10-20 06:37:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 06:37:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2020-10-20 06:37:19,332 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-10-20 06:37:19,332 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-10-20 06:37:19,332 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:37:19,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2020-10-20 06:37:19,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:19,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:19,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:19,334 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:19,334 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:19,334 INFO L794 eck$LassoCheckResult]: Stem: 446#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 441#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 442#L521 assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 438#L525 assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 439#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 448#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 449#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 457#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 454#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem6;havoc strspn_#t~mem4;havoc strspn_#t~mem5;havoc strspn_#t~short7; 436#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 437#L512 assume !(0 == strspn_#t~mem8);havoc strspn_#t~mem8;strspn_#t~post9 := strspn_~l~0;strspn_~l~0 := 1 + strspn_#t~post9;havoc strspn_#t~post9; 440#L510-3 strspn_#t~post2.base, strspn_#t~post2.offset := strspn_~s.base, strspn_~s.offset;strspn_~s.base, strspn_~s.offset := strspn_#t~post2.base, 1 + strspn_#t~post2.offset;havoc strspn_#t~post2.base, strspn_#t~post2.offset; 452#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 447#L510-1 assume !!(0 != strspn_#t~mem10);havoc strspn_#t~mem10;strspn_~a~0.base, strspn_~a~0.offset := strspn_~accept.base, strspn_~accept.offset; 432#L511-6 [2020-10-20 06:37:19,335 INFO L796 eck$LassoCheckResult]: Loop: 432#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 433#L511-1 assume strspn_#t~short7;call strspn_#t~mem4 := read~int(strspn_~s.base, strspn_~s.offset, 1);call strspn_#t~mem5 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := strspn_#t~mem4 != strspn_#t~mem5; 443#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem6;havoc strspn_#t~mem4;havoc strspn_#t~mem5;havoc strspn_#t~short7; 450#L511-5 strspn_#t~post3.base, strspn_#t~post3.offset := strspn_~a~0.base, strspn_~a~0.offset;strspn_~a~0.base, strspn_~a~0.offset := strspn_#t~post3.base, 1 + strspn_#t~post3.offset;havoc strspn_#t~post3.base, strspn_#t~post3.offset; 432#L511-6 [2020-10-20 06:37:19,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,335 INFO L82 PathProgramCache]: Analyzing trace with hash 4202367, now seen corresponding path program 2 times [2020-10-20 06:37:19,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:19,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93146824] [2020-10-20 06:37:19,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,376 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:19,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 3 times [2020-10-20 06:37:19,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:19,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820376282] [2020-10-20 06:37:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,384 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,385 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:19,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:19,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1675488540, now seen corresponding path program 1 times [2020-10-20 06:37:19,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:19,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480558744] [2020-10-20 06:37:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:19,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:19,461 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:20,185 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 131 [2020-10-20 06:37:20,361 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-20 06:37:20,364 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:20,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:20,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:20,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:20,365 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:20,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:20,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:20,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration5_Lasso [2020-10-20 06:37:20,365 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:20,365 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:20,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:20,877 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-10-20 06:37:21,048 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-20 06:37:21,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:21,677 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:21,677 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,696 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,696 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,697 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:21,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:21,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:21,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:21,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:21,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,931 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:21,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:21,958 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:21,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:21,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:21,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:21,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:21,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:21,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:21,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:21,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:21,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:22,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:22,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:22,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:22,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:22,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:22,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:22,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:22,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:22,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:22,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:22,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:22,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:22,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:22,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:22,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:22,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:22,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:22,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:22,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:22,187 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:22,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:22,234 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:22,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:22,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,288 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:22,317 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:22,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:22,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:22,376 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:22,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:22,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:22,405 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:22,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:22,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:22,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:22,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:22,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:22,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:22,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:22,487 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-10-20 06:37:22,487 INFO L444 ModelExtractionUtils]: 35 out of 46 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,489 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:37:22,491 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:22,492 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:22,492 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3, ULTIMATE.start_strspn_~a~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3 - 1*ULTIMATE.start_strspn_~a~0.offset Supporting invariants [] [2020-10-20 06:37:22,634 INFO L297 tatePredicateManager]: 31 out of 32 supporting invariants were superfluous and have been removed [2020-10-20 06:37:22,636 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:22,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:37:22,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:22,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:22,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:22,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:22,726 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 06:37:22,727 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-20 06:37:22,780 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 44 states and 52 transitions. Complement of second has 6 states. [2020-10-20 06:37:22,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:22,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:37:22,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-20 06:37:22,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-20 06:37:22,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:22,783 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:37:22,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:22,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:37:22,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:22,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:22,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:23,008 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 06:37:23,008 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-20 06:37:23,057 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 44 states and 52 transitions. Complement of second has 6 states. [2020-10-20 06:37:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:37:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-20 06:37:23,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-20 06:37:23,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:23,059 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:37:23,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:23,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:37:23,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:23,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:23,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:23,150 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 06:37:23,150 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-20 06:37:23,208 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 46 states and 57 transitions. Complement of second has 5 states. [2020-10-20 06:37:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:37:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-10-20 06:37:23,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-20 06:37:23,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:23,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 18 letters. Loop has 4 letters. [2020-10-20 06:37:23,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:23,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 8 letters. [2020-10-20 06:37:23,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:23,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 57 transitions. [2020-10-20 06:37:23,216 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:37:23,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2020-10-20 06:37:23,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:37:23,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:37:23,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:37:23,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:37:23,217 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:37:23,217 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:37:23,217 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:37:23,217 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 06:37:23,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:37:23,218 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:37:23,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:37:23,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:37:23 BoogieIcfgContainer [2020-10-20 06:37:23,224 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:37:23,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:37:23,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:37:23,225 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:37:23,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:13" (3/4) ... [2020-10-20 06:37:23,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:37:23,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:37:23,231 INFO L168 Benchmark]: Toolchain (without parser) took 11211.59 ms. Allocated memory was 43.0 MB in the beginning and 107.0 MB in the end (delta: 64.0 MB). Free memory was 22.6 MB in the beginning and 55.0 MB in the end (delta: -32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:23,231 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 32.5 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:37:23,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.70 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 21.7 MB in the beginning and 13.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:23,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 43.5 MB. Free memory was 13.1 MB in the beginning and 11.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:23,233 INFO L168 Benchmark]: Boogie Preprocessor took 26.60 ms. Allocated memory is still 43.5 MB. Free memory was 11.1 MB in the beginning and 9.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:23,234 INFO L168 Benchmark]: RCFGBuilder took 372.61 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 9.6 MB in the beginning and 11.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 661.0 kB. Max. memory is 14.3 GB. [2020-10-20 06:37:23,234 INFO L168 Benchmark]: BuchiAutomizer took 10185.82 ms. Allocated memory was 44.6 MB in the beginning and 107.0 MB in the end (delta: 62.4 MB). Free memory was 11.2 MB in the beginning and 55.0 MB in the end (delta: -43.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:23,235 INFO L168 Benchmark]: Witness Printer took 4.70 ms. Allocated memory is still 107.0 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:37:23,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 32.5 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 560.70 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 21.7 MB in the beginning and 13.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 43.5 MB. Free memory was 13.1 MB in the beginning and 11.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.60 ms. Allocated memory is still 43.5 MB. Free memory was 11.1 MB in the beginning and 9.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 372.61 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 9.6 MB in the beginning and 11.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 661.0 kB. Max. memory is 14.3 GB. * BuchiAutomizer took 10185.82 ms. Allocated memory was 44.6 MB in the beginning and 107.0 MB in the end (delta: 62.4 MB). Free memory was 11.2 MB in the beginning and 55.0 MB in the end (delta: -43.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. * Witness Printer took 4.70 ms. Allocated memory is still 107.0 MB. Free memory is still 55.0 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * a and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * a and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 8.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 101 SDtfs, 104 SDslu, 45 SDs, 0 SdLazy, 81 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital226 mio100 ax100 hnf99 lsp95 ukn80 mio100 lsp37 div100 bol100 ite100 ukn100 eq185 hnf89 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms 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! Received shutdown request...