./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 0.1.25-906a4fb [2020-10-19 18:44:09,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:44:09,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:44:09,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:44:09,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:44:09,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:44:09,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:44:09,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:44:09,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:44:09,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:44:09,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:44:09,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:44:09,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:44:09,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:44:09,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:44:09,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:44:09,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:44:09,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:44:09,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:44:09,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:44:09,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:44:09,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:44:09,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:44:09,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:44:09,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:44:09,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:44:09,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:44:09,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:44:09,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:44:09,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:44:09,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:44:09,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:44:09,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:44:09,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:44:09,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:44:09,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:44:09,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:44:09,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:44:09,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:44:09,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:44:09,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:44:09,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:44:09,560 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:44:09,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:44:09,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:44:09,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:44:09,562 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:44:09,562 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:44:09,562 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:44:09,563 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:44:09,563 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:44:09,563 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:44:09,564 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:44:09,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:44:09,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:44:09,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:44:09,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:44:09,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:44:09,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:44:09,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:44:09,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:44:09,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:44:09,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:44:09,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:44:09,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:44:09,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:44:09,567 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:44:09,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:44:09,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:44:09,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:44:09,569 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:44:09,570 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:44:09,570 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 [2020-10-19 18:44:09,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:44:09,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:44:09,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:44:09,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:44:09,933 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:44:09,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strspn.i [2020-10-19 18:44:09,993 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703ffc567/b6b8ba9e101e4892bc7f54a6c3c6728c/FLAG02162cf57 [2020-10-19 18:44:10,513 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:44:10,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strspn.i [2020-10-19 18:44:10,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703ffc567/b6b8ba9e101e4892bc7f54a6c3c6728c/FLAG02162cf57 [2020-10-19 18:44:10,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703ffc567/b6b8ba9e101e4892bc7f54a6c3c6728c [2020-10-19 18:44:10,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:44:10,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:44:10,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:44:10,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:44:10,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:44:10,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:44:10" (1/1) ... [2020-10-19 18:44:10,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28369d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:10, skipping insertion in model container [2020-10-19 18:44:10,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:44:10" (1/1) ... [2020-10-19 18:44:10,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:44:10,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:44:11,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:44:11,300 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:44:11,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:44:11,395 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:44:11,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11 WrapperNode [2020-10-19 18:44:11,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:44:11,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:44:11,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:44:11,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:44:11,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:44:11,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:44:11,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:44:11,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:44:11,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (1/1) ... [2020-10-19 18:44:11,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:44:11,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:44:11,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:44:11,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:44:11,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (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 [2020-10-19 18:44:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:44:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:44:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:44:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:44:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:44:11,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:44:11,828 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:44:11,829 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-19 18:44:11,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:11 BoogieIcfgContainer [2020-10-19 18:44:11,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:44:11,834 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:44:11,834 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:44:11,838 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:44:11,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:11,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:44:10" (1/3) ... [2020-10-19 18:44:11,841 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bf9fe0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:44:11, skipping insertion in model container [2020-10-19 18:44:11,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:11,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:11" (2/3) ... [2020-10-19 18:44:11,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1bf9fe0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:44:11, skipping insertion in model container [2020-10-19 18:44:11,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:11,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:11" (3/3) ... [2020-10-19 18:44:11,844 INFO L373 chiAutomizerObserver]: Analyzing ICFG strspn.i [2020-10-19 18:44:11,904 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:44:11,904 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:44:11,905 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:44:11,905 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:44:11,905 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:44:11,906 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:44:11,906 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:44:11,906 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:44:11,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-19 18:44:11,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-19 18:44:11,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:11,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:11,959 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:44:11,959 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:44:11,960 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:44:11,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-10-19 18:44:11,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-19 18:44:11,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:11,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:11,964 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:44:11,964 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:44:11,973 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet13, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 9#L521true assume !(main_~in_len~0 < 1);call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet13;havoc main_#t~nondet13; 6#L525true assume !(main_~out_len~0 < 1);call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 19#L510-4true [2020-10-19 18:44:11,974 INFO L796 eck$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 [2020-10-19 18:44:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:11,981 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-10-19 18:44:11,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:11,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779042912] [2020-10-19 18:44:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,124 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,184 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:12,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1366197546, now seen corresponding path program 1 times [2020-10-19 18:44:12,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:12,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008903258] [2020-10-19 18:44:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:12,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:12,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008903258] [2020-10-19 18:44:12,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:44:12,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:44:12,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903853317] [2020-10-19 18:44:12,233 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:44:12,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:44:12,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:44:12,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:44:12,254 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-10-19 18:44:12,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:44:12,263 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-10-19 18:44:12,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:44:12,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-10-19 18:44:12,268 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-19 18:44:12,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 15 transitions. [2020-10-19 18:44:12,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-19 18:44:12,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-19 18:44:12,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2020-10-19 18:44:12,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:44:12,275 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-19 18:44:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2020-10-19 18:44:12,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-19 18:44:12,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:44:12,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-10-19 18:44:12,312 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-19 18:44:12,312 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-10-19 18:44:12,313 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:44:12,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2020-10-19 18:44:12,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-10-19 18:44:12,314 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:12,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:12,315 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:44:12,315 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:44:12,315 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 [2020-10-19 18:44:12,316 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~mem5;havoc strspn_#t~mem4;havoc strspn_#t~mem6;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 [2020-10-19 18:44:12,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:12,316 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2020-10-19 18:44:12,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:12,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111457000] [2020-10-19 18:44:12,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,336 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:12,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:12,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1786909933, now seen corresponding path program 1 times [2020-10-19 18:44:12,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:12,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507615613] [2020-10-19 18:44:12,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:12,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:12,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1162005510, now seen corresponding path program 1 times [2020-10-19 18:44:12,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:12,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12759177] [2020-10-19 18:44:12,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,494 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:12,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:12,550 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:12,757 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-19 18:44:13,201 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-19 18:44:13,329 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-19 18:44:13,343 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:44:13,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:44:13,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:44:13,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:44:13,345 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:44:13,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:13,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:44:13,346 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:44:13,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration2_Lasso [2020-10-19 18:44:13,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:44:13,347 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:44:13,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,725 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-19 18:44:13,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:13,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:14,294 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:44:14,304 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 [2020-10-19 18:44:14,311 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 [2020-10-19 18:44:14,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,324 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 [2020-10-19 18:44:14,378 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 [2020-10-19 18:44:14,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,388 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) [2020-10-19 18:44:14,421 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 [2020-10-19 18:44:14,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:14,426 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 [2020-10-19 18:44:14,458 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 [2020-10-19 18:44:14,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,468 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 [2020-10-19 18:44:14,506 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 [2020-10-19 18:44:14,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,517 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 [2020-10-19 18:44:14,543 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 [2020-10-19 18:44:14,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,548 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:14,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:14,552 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 [2020-10-19 18:44:14,580 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 [2020-10-19 18:44:14,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,585 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 [2020-10-19 18:44:14,609 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 [2020-10-19 18:44:14,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:14,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:14,623 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 [2020-10-19 18:44:14,650 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 [2020-10-19 18:44:14,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,657 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 [2020-10-19 18:44:14,680 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 [2020-10-19 18:44:14,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,684 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 [2020-10-19 18:44:14,705 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 [2020-10-19 18:44:14,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,709 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 [2020-10-19 18:44:14,731 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 [2020-10-19 18:44:14,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,740 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 [2020-10-19 18:44:14,768 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 [2020-10-19 18:44:14,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,773 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 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 [2020-10-19 18:44:14,801 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 [2020-10-19 18:44:14,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,805 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 [2020-10-19 18:44:14,828 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 [2020-10-19 18:44:14,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,834 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 [2020-10-19 18:44:14,856 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 [2020-10-19 18:44:14,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:14,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,863 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 [2020-10-19 18:44:14,894 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 [2020-10-19 18:44:14,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:14,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:14,933 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 [2020-10-19 18:44:14,955 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 [2020-10-19 18:44:14,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:14,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,957 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 18:44:14,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,959 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:44:14,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:14,963 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 [2020-10-19 18:44:14,988 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 [2020-10-19 18:44:14,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:14,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:14,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:14,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:14,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:14,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:14,995 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 [2020-10-19 18:44:15,035 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 [2020-10-19 18:44:15,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:15,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:15,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:15,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:15,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:15,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:15,049 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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:15,073 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 [2020-10-19 18:44:15,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:15,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:15,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:15,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:15,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:15,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:15,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:15,078 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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:15,101 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 [2020-10-19 18:44:15,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:15,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:15,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:15,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:15,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:15,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:15,114 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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:15,144 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 [2020-10-19 18:44:15,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:15,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:15,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:15,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:15,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:15,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:15,161 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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:15,183 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 [2020-10-19 18:44:15,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:15,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:15,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:15,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:15,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:15,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:15,205 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:44:15,247 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-10-19 18:44:15,248 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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:15,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:44:15,313 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:44:15,314 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:44:15,315 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 [] [2020-10-19 18:44:15,422 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2020-10-19 18:44:15,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:44:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:15,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:44:15,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:15,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:44:15,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:15,521 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 [2020-10-19 18:44:15,523 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-10-19 18:44:15,571 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. [2020-10-19 18:44:15,572 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 [2020-10-19 18:44:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:44:15,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-10-19 18:44:15,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 8 letters. [2020-10-19 18:44:15,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:15,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 12 letters. Loop has 8 letters. [2020-10-19 18:44:15,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:15,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 16 letters. [2020-10-19 18:44:15,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:15,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2020-10-19 18:44:15,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:44:15,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 19 states and 24 transitions. [2020-10-19 18:44:15,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:44:15,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:44:15,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2020-10-19 18:44:15,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:44:15,582 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 18:44:15,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2020-10-19 18:44:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-19 18:44:15,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-19 18:44:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-10-19 18:44:15,585 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 18:44:15,585 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-10-19 18:44:15,585 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:44:15,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-10-19 18:44:15,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:44:15,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:15,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:15,587 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:44:15,587 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 18:44:15,588 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 [2020-10-19 18:44:15,588 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~mem5;havoc strspn_#t~mem4;havoc strspn_#t~mem6;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 [2020-10-19 18:44:15,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:15,588 INFO L82 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2020-10-19 18:44:15,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:15,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598378020] [2020-10-19 18:44:15,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:15,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:15,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:15,623 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:15,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:15,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 1 times [2020-10-19 18:44:15,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:15,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689779113] [2020-10-19 18:44:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:15,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:15,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:15,636 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:15,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:15,637 INFO L82 PathProgramCache]: Analyzing trace with hash 736220242, now seen corresponding path program 1 times [2020-10-19 18:44:15,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:15,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254007456] [2020-10-19 18:44:15,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:15,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:15,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:15,713 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:16,200 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 99 [2020-10-19 18:44:16,332 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-19 18:44:16,335 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:44:16,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:44:16,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:44:16,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:44:16,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:44:16,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:16,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:44:16,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:44:16,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration3_Lasso [2020-10-19 18:44:16,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:44:16,336 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:44:16,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,645 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-10-19 18:44:16,760 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-19 18:44:16,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:16,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:17,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:44:17,412 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 [2020-10-19 18:44:17,422 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 [2020-10-19 18:44:17,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:17,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:17,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:17,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:17,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:17,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:17,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:17,425 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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:17,449 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 [2020-10-19 18:44:17,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:17,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:17,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:17,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:17,454 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:17,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:17,460 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) [2020-10-19 18:44:17,504 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 [2020-10-19 18:44:17,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:17,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:17,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:17,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:17,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:17,520 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 [2020-10-19 18:44:17,541 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:44:17,673 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-19 18:44:17,673 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) [2020-10-19 18:44:17,676 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 [2020-10-19 18:44:17,679 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:44:17,679 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:44:17,680 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strspn_~a~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2) = -1*ULTIMATE.start_strspn_~a~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2 Supporting invariants [] [2020-10-19 18:44:17,757 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2020-10-19 18:44:17,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:44:17,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:17,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:44:17,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:17,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:44:17,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:17,844 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 [2020-10-19 18:44:17,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-19 18:44:17,890 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. [2020-10-19 18:44:17,891 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 [2020-10-19 18:44:17,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:44:17,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-19 18:44:17,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-10-19 18:44:17,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:17,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2020-10-19 18:44:17,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:17,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 8 letters. [2020-10-19 18:44:17,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:17,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2020-10-19 18:44:17,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:44:17,896 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 40 transitions. [2020-10-19 18:44:17,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-19 18:44:17,896 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 18:44:17,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2020-10-19 18:44:17,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:44:17,897 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-10-19 18:44:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2020-10-19 18:44:17,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2020-10-19 18:44:17,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-19 18:44:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-10-19 18:44:17,901 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-19 18:44:17,901 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-10-19 18:44:17,901 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:44:17,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2020-10-19 18:44:17,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:44:17,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:17,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:17,903 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:44:17,903 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 18:44:17,904 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~mem5;havoc strspn_#t~mem4;havoc strspn_#t~mem6;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 [2020-10-19 18:44:17,904 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~mem5;havoc strspn_#t~mem4;havoc strspn_#t~mem6;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 [2020-10-19 18:44:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:17,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1779209729, now seen corresponding path program 1 times [2020-10-19 18:44:17,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:17,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221453455] [2020-10-19 18:44:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:17,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221453455] [2020-10-19 18:44:17,950 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:44:17,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:44:17,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241260430] [2020-10-19 18:44:17,951 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:44:17,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:17,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 2 times [2020-10-19 18:44:17,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:17,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550017364] [2020-10-19 18:44:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:17,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:17,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:17,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:18,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:44:18,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:44:18,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:44:18,059 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-10-19 18:44:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:44:18,096 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2020-10-19 18:44:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:44:18,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2020-10-19 18:44:18,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-19 18:44:18,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 32 states and 38 transitions. [2020-10-19 18:44:18,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 18:44:18,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 18:44:18,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 38 transitions. [2020-10-19 18:44:18,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:44:18,099 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-19 18:44:18,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 38 transitions. [2020-10-19 18:44:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2020-10-19 18:44:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-19 18:44:18,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2020-10-19 18:44:18,103 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-10-19 18:44:18,103 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2020-10-19 18:44:18,103 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:44:18,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2020-10-19 18:44:18,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:44:18,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:18,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:18,105 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:44:18,105 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 18:44:18,105 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~mem5;havoc strspn_#t~mem4;havoc strspn_#t~mem6;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 [2020-10-19 18:44:18,105 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~mem5;havoc strspn_#t~mem4;havoc strspn_#t~mem6;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 [2020-10-19 18:44:18,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:18,106 INFO L82 PathProgramCache]: Analyzing trace with hash 4202367, now seen corresponding path program 2 times [2020-10-19 18:44:18,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:18,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040148530] [2020-10-19 18:44:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:18,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:18,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:18,144 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:18,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:18,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1696358, now seen corresponding path program 3 times [2020-10-19 18:44:18,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:18,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703861801] [2020-10-19 18:44:18,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:18,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:18,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:18,160 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:18,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:18,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1675488540, now seen corresponding path program 1 times [2020-10-19 18:44:18,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:18,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74525382] [2020-10-19 18:44:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:18,204 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:18,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:18,246 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:18,944 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 131 [2020-10-19 18:44:19,090 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-19 18:44:19,094 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:44:19,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:44:19,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:44:19,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:44:19,095 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:44:19,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:19,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:44:19,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:44:19,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: strspn.i_Iteration5_Lasso [2020-10-19 18:44:19,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:44:19,095 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:44:19,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:19,592 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2020-10-19 18:44:19,730 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-10-19 18:44:19,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:20,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:44:20,413 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) [2020-10-19 18:44:20,425 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 [2020-10-19 18:44:20,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:20,430 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 [2020-10-19 18:44:20,452 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 [2020-10-19 18:44:20,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,462 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 [2020-10-19 18:44:20,484 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 [2020-10-19 18:44:20,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:20,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:20,498 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) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:20,529 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 [2020-10-19 18:44:20,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,532 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 [2020-10-19 18:44:20,554 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 [2020-10-19 18:44:20,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,557 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) [2020-10-19 18:44:20,591 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 [2020-10-19 18:44:20,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:20,598 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 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 [2020-10-19 18:44:20,619 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 [2020-10-19 18:44:20,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,625 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) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:20,647 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 [2020-10-19 18:44:20,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,650 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 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:20,674 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 [2020-10-19 18:44:20,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,678 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 [2020-10-19 18:44:20,700 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 [2020-10-19 18:44:20,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:20,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:20,711 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 [2020-10-19 18:44:20,736 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 [2020-10-19 18:44:20,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,739 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 [2020-10-19 18:44:20,760 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 [2020-10-19 18:44:20,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,764 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 [2020-10-19 18:44:20,787 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 [2020-10-19 18:44:20,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,796 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 [2020-10-19 18:44:20,816 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 [2020-10-19 18:44:20,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,819 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) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:20,841 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 [2020-10-19 18:44:20,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,845 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 [2020-10-19 18:44:20,869 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 [2020-10-19 18:44:20,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,872 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 [2020-10-19 18:44:20,895 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 [2020-10-19 18:44:20,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:20,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:20,902 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 [2020-10-19 18:44:20,925 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 [2020-10-19 18:44:20,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:20,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:20,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:20,928 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 [2020-10-19 18:44:20,951 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 [2020-10-19 18:44:20,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:20,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:20,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:20,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:20,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:20,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:20,985 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) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:21,009 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 [2020-10-19 18:44:21,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:21,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:21,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:21,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:21,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:21,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:21,023 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 [2020-10-19 18:44:21,047 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 [2020-10-19 18:44:21,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:21,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:21,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:21,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:21,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:21,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:21,063 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 [2020-10-19 18:44:21,093 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 [2020-10-19 18:44:21,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:21,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:21,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:21,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:21,095 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:21,095 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:21,101 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) [2020-10-19 18:44:21,123 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 Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:21,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:21,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:21,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:21,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:21,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:21,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:21,129 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 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:21,150 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 [2020-10-19 18:44:21,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:21,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:21,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:21,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:21,159 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:21,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:21,177 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:44:21,208 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-10-19 18:44:21,208 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 [2020-10-19 18:44:21,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:44:21,213 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:44:21,214 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:44:21,214 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 [] [2020-10-19 18:44:21,366 INFO L297 tatePredicateManager]: 31 out of 32 supporting invariants were superfluous and have been removed [2020-10-19 18:44:21,369 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:44:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:21,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:44:21,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:21,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:44:21,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:21,457 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 [2020-10-19 18:44:21,458 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-19 18:44:21,512 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. [2020-10-19 18:44:21,515 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 [2020-10-19 18:44:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:44:21,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-19 18:44:21,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-19 18:44:21,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:21,516 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:44:21,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:21,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:44:21,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:21,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:44:21,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:21,608 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 [2020-10-19 18:44:21,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-19 18:44:21,656 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. [2020-10-19 18:44:21,657 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 [2020-10-19 18:44:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:44:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-19 18:44:21,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-19 18:44:21,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:21,658 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:44:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:21,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:44:21,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:21,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:44:21,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:21,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:21,760 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 [2020-10-19 18:44:21,760 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-10-19 18:44:21,808 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. [2020-10-19 18:44:21,810 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 [2020-10-19 18:44:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:44:21,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2020-10-19 18:44:21,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 4 letters. [2020-10-19 18:44:21,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:21,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 18 letters. Loop has 4 letters. [2020-10-19 18:44:21,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:21,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 14 letters. Loop has 8 letters. [2020-10-19 18:44:21,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:21,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 57 transitions. [2020-10-19 18:44:21,815 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:44:21,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2020-10-19 18:44:21,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:44:21,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:44:21,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:44:21,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:44:21,817 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:44:21,817 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:44:21,817 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:44:21,817 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 18:44:21,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:44:21,817 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:44:21,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:44:21,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:44:21 BoogieIcfgContainer [2020-10-19 18:44:21,825 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:44:21,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:44:21,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:44:21,826 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:44:21,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:11" (3/4) ... [2020-10-19 18:44:21,834 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:44:21,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:44:21,836 INFO L168 Benchmark]: Toolchain (without parser) took 11002.53 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 280.5 MB). Free memory was 958.6 MB in the beginning and 1.0 GB in the end (delta: -48.0 MB). Peak memory consumption was 232.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:21,837 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:21,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:21,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:21,839 INFO L168 Benchmark]: Boogie Preprocessor took 30.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:21,839 INFO L168 Benchmark]: RCFGBuilder took 353.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:21,840 INFO L168 Benchmark]: BuchiAutomizer took 9991.09 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.4 MB). Peak memory consumption was 227.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:21,841 INFO L168 Benchmark]: Witness Printer took 9.30 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:21,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 556.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.67 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 353.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9991.09 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.4 MB). Peak memory consumption was 227.9 MB. Max. memory is 11.5 GB. * Witness Printer took 9.30 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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 -1 * a + unknown-#length-unknown[__builtin_alloca (out_len)] 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 9.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 8.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. 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: 11ms 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...