./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/strtok_r.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-dietlibc/strtok_r.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 1697f909ede7c89de56057e54b84d7ae7cf0bcac 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:37:13,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:37:13,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:37:13,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:37:13,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:37:13,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:37:13,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:37:13,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:37:13,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:37:13,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:37:13,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:37:13,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:37:13,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:37:13,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:37:13,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:37:13,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:37:13,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:37:13,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:37:13,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:37:13,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:37:13,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:37:13,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:37:13,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:37:13,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:37:13,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:37:13,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:37:13,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:37:13,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:37:13,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:37:13,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:37:13,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:37:13,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:37:13,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:37:13,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:37:13,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:37:13,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:37:13,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:37:13,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:37:13,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:37:13,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:37:13,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:37:13,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:37:13,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:37:13,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:37:13,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:37:13,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:37:13,604 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:37:13,605 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:37:13,605 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:37:13,605 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:37:13,605 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:37:13,606 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:37:13,606 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:37:13,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:37:13,606 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:37:13,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:37:13,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:37:13,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:37:13,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:37:13,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:37:13,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:37:13,608 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:37:13,608 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:37:13,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:37:13,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:37:13,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:37:13,610 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:37:13,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:37:13,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:37:13,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:37:13,611 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:37:13,612 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:37:13,612 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 -> 1697f909ede7c89de56057e54b84d7ae7cf0bcac [2020-10-20 06:37:13,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:37:13,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:37:13,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:37:13,829 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:37:13,829 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:37:13,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strtok_r.i [2020-10-20 06:37:13,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678a00038/fb417678587c46f7ab79bdc3486a03ec/FLAGd613579bd [2020-10-20 06:37:14,547 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:37:14,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strtok_r.i [2020-10-20 06:37:14,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678a00038/fb417678587c46f7ab79bdc3486a03ec/FLAGd613579bd [2020-10-20 06:37:14,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/678a00038/fb417678587c46f7ab79bdc3486a03ec [2020-10-20 06:37:14,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:37:14,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:37:14,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:37:14,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:37:14,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:37:14,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:37:14" (1/1) ... [2020-10-20 06:37:14,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b6096b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:14, skipping insertion in model container [2020-10-20 06:37:14,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:37:14" (1/1) ... [2020-10-20 06:37:14,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:37:15,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:37:15,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:37:15,312 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:37:15,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:37:15,422 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:37:15,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15 WrapperNode [2020-10-20 06:37:15,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:37:15,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:37:15,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:37:15,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:37:15,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:37:15,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:37:15,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:37:15,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:37:15,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... [2020-10-20 06:37:15,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:37:15,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:37:15,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:37:15,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:37:15,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:37:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:37:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:37:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 06:37:15,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:37:15,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:37:16,048 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:37:16,049 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-20 06:37:16,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:16 BoogieIcfgContainer [2020-10-20 06:37:16,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:37:16,051 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:37:16,052 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:37:16,055 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:37:16,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:16,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:37:14" (1/3) ... [2020-10-20 06:37:16,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@337a1b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:37:16, skipping insertion in model container [2020-10-20 06:37:16,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:16,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:37:15" (2/3) ... [2020-10-20 06:37:16,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@337a1b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:37:16, skipping insertion in model container [2020-10-20 06:37:16,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:37:16,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:16" (3/3) ... [2020-10-20 06:37:16,061 INFO L373 chiAutomizerObserver]: Analyzing ICFG strtok_r.i [2020-10-20 06:37:16,110 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:37:16,110 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:37:16,110 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:37:16,111 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:37:16,112 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:37:16,112 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:37:16,112 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:37:16,113 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:37:16,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states. [2020-10-20 06:37:16,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-20 06:37:16,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:16,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:16,156 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,156 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,156 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:37:16,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states. [2020-10-20 06:37:16,159 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-20 06:37:16,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:16,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:16,160 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,168 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,177 INFO L794 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 7#L544true assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 3#L548true assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 9#L532true assume strtok_r_~s.base == 0 && strtok_r_~s.offset == 0;call strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset := read~$Pointer$(strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, 8);strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset; 12#L532-2true strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 20#L510-4true [2020-10-20 06:37:16,177 INFO L796 eck$LassoCheckResult]: Loop: 20#L510-4true call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 11#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; 21#L511-6true assume !true; 22#L511-7true call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 25#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; 16#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; 20#L510-4true [2020-10-20 06:37:16,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,184 INFO L82 PathProgramCache]: Analyzing trace with hash 889571276, now seen corresponding path program 1 times [2020-10-20 06:37:16,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853454810] [2020-10-20 06:37:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:16,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853454810] [2020-10-20 06:37:16,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:16,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:37:16,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659373076] [2020-10-20 06:37:16,406 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:16,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1573281738, now seen corresponding path program 1 times [2020-10-20 06:37:16,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600498986] [2020-10-20 06:37:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:16,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600498986] [2020-10-20 06:37:16,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:16,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:37:16,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45303976] [2020-10-20 06:37:16,423 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:37:16,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:16,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 06:37:16,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:37:16,443 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-10-20 06:37:16,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:16,453 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2020-10-20 06:37:16,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 06:37:16,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 45 transitions. [2020-10-20 06:37:16,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-20 06:37:16,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 26 states and 32 transitions. [2020-10-20 06:37:16,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-10-20 06:37:16,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-10-20 06:37:16,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2020-10-20 06:37:16,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:37:16,465 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-10-20 06:37:16,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2020-10-20 06:37:16,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 06:37:16,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 06:37:16,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2020-10-20 06:37:16,515 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-10-20 06:37:16,515 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-10-20 06:37:16,515 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:37:16,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 32 transitions. [2020-10-20 06:37:16,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-20 06:37:16,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:16,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:16,518 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,518 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,518 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 86#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 85#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 78#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 79#L532 assume strtok_r_~s.base == 0 && strtok_r_~s.offset == 0;call strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset := read~$Pointer$(strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, 8);strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset; 87#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strspn_#res;havoc strspn_#t~post3.base, strspn_#t~post3.offset, strspn_#t~mem6, strspn_#t~mem4, strspn_#t~mem5, strspn_#t~short7, strspn_#t~mem8, strspn_#t~post9, strspn_#t~post2.base, strspn_#t~post2.offset, strspn_#t~mem10, strspn_~s.base, strspn_~s.offset, strspn_~accept.base, strspn_~accept.offset, strspn_~l~0, strspn_~a~0.base, strspn_~a~0.offset;strspn_~s.base, strspn_~s.offset := strspn_#in~s.base, strspn_#in~s.offset;strspn_~accept.base, strspn_~accept.offset := strspn_#in~accept.base, strspn_#in~accept.offset;strspn_~l~0 := 0;havoc strspn_~a~0.base, strspn_~a~0.offset; 92#L510-4 [2020-10-20 06:37:16,518 INFO L796 eck$LassoCheckResult]: Loop: 92#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 90#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; 91#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 96#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; 101#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 97#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 98#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; 94#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; 92#L510-4 [2020-10-20 06:37:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,519 INFO L82 PathProgramCache]: Analyzing trace with hash 889571276, now seen corresponding path program 2 times [2020-10-20 06:37:16,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371247170] [2020-10-20 06:37:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:16,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:16,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371247170] [2020-10-20 06:37:16,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:16,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:37:16,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319883570] [2020-10-20 06:37:16,598 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:16,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,598 INFO L82 PathProgramCache]: Analyzing trace with hash -347496813, now seen corresponding path program 1 times [2020-10-20 06:37:16,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449918500] [2020-10-20 06:37:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,640 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,808 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-20 06:37:16,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:16,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:37:16,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:37:16,875 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-20 06:37:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:16,906 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2020-10-20 06:37:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:37:16,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2020-10-20 06:37:16,909 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-20 06:37:16,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 31 transitions. [2020-10-20 06:37:16,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-10-20 06:37:16,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-10-20 06:37:16,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 31 transitions. [2020-10-20 06:37:16,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:37:16,911 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-10-20 06:37:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 31 transitions. [2020-10-20 06:37:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-20 06:37:16,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-20 06:37:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-10-20 06:37:16,914 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-10-20 06:37:16,915 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-10-20 06:37:16,915 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:37:16,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 31 transitions. [2020-10-20 06:37:16,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-10-20 06:37:16,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:16,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:16,917 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,917 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:16,918 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 147#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 146#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 139#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 140#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 148#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 153#L510-4 [2020-10-20 06:37:16,918 INFO L796 eck$LassoCheckResult]: Loop: 153#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 151#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; 152#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 157#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; 162#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 158#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 159#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; 155#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; 153#L510-4 [2020-10-20 06:37:16,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,918 INFO L82 PathProgramCache]: Analyzing trace with hash 889571338, now seen corresponding path program 1 times [2020-10-20 06:37:16,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704820930] [2020-10-20 06:37:16,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,964 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,965 INFO L82 PathProgramCache]: Analyzing trace with hash -347496813, now seen corresponding path program 2 times [2020-10-20 06:37:16,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135185524] [2020-10-20 06:37:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:16,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:16,991 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:16,992 INFO L82 PathProgramCache]: Analyzing trace with hash -126923364, now seen corresponding path program 1 times [2020-10-20 06:37:16,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:16,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283108800] [2020-10-20 06:37:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:17,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:17,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:17,142 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:17,295 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-20 06:37:18,036 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 141 [2020-10-20 06:37:18,326 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-20 06:37:18,341 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:18,341 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:18,342 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:18,342 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:18,342 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:18,342 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:18,343 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:18,343 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:18,343 INFO L133 ssoRankerPreferences]: Filename of dumped script: strtok_r.i_Iteration3_Lasso [2020-10-20 06:37:18,343 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:18,344 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:18,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,845 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-20 06:37:18,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:18,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:19,737 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:19,742 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) [2020-10-20 06:37:19,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,793 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) [2020-10-20 06:37:19,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,836 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 06:37:19,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,839 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-20 06:37:19,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,843 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) [2020-10-20 06:37:19,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:19,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:19,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:19,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:19,937 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) [2020-10-20 06:37:19,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:19,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:19,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:19,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:19,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:19,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:19,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:19,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:20,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:20,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:20,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:20,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:20,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:20,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:20,030 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) [2020-10-20 06:37:20,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:20,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:20,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:20,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:20,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:20,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:20,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:20,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:20,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:20,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:20,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:20,129 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:20,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:20,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:20,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:20,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:20,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:20,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:20,182 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:20,182 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:20,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:20,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:20,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:20,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:20,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:20,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:20,214 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:20,218 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:20,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:20,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:20,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:20,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:20,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:20,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:20,271 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:20,311 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-20 06:37:20,311 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 20 variables to zero. 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) [2020-10-20 06:37:20,334 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:20,375 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:20,376 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:20,376 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc25.base)_1, ULTIMATE.start_strspn_~s.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc25.base)_1 - 1*ULTIMATE.start_strspn_~s.offset Supporting invariants [] [2020-10-20 06:37:20,507 INFO L297 tatePredicateManager]: 11 out of 12 supporting invariants were superfluous and have been removed [2020-10-20 06:37:20,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:20,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:20,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:37:20,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:20,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:20,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:20,710 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-20 06:37:20,711 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-10-20 06:37:20,828 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 31 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 46 states and 57 transitions. Complement of second has 6 states. [2020-10-20 06:37:20,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:37:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-10-20 06:37:20,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 8 letters. [2020-10-20 06:37:20,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:20,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 14 letters. Loop has 8 letters. [2020-10-20 06:37:20,835 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:20,835 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 16 letters. [2020-10-20 06:37:20,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:20,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 57 transitions. [2020-10-20 06:37:20,838 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:20,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 34 states and 42 transitions. [2020-10-20 06:37:20,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-10-20 06:37:20,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-20 06:37:20,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 42 transitions. [2020-10-20 06:37:20,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:20,840 INFO L691 BuchiCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-10-20 06:37:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 42 transitions. [2020-10-20 06:37:20,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-20 06:37:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-20 06:37:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-10-20 06:37:20,844 INFO L714 BuchiCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-10-20 06:37:20,845 INFO L594 BuchiCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-10-20 06:37:20,845 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:37:20,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 42 transitions. [2020-10-20 06:37:20,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:20,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:20,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:20,847 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:20,847 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:20,847 INFO L794 eck$LassoCheckResult]: Stem: 364#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 341#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 340#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 333#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 334#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 342#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 349#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 345#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; 346#L511-6 [2020-10-20 06:37:20,847 INFO L796 eck$LassoCheckResult]: Loop: 346#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 354#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; 362#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 365#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; 346#L511-6 [2020-10-20 06:37:20,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,848 INFO L82 PathProgramCache]: Analyzing trace with hash 179564655, now seen corresponding path program 1 times [2020-10-20 06:37:20,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251692702] [2020-10-20 06:37:20,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,864 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,886 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:20,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1911846, now seen corresponding path program 1 times [2020-10-20 06:37:20,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047454897] [2020-10-20 06:37:20,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,907 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:20,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1251527276, now seen corresponding path program 1 times [2020-10-20 06:37:20,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:20,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850603524] [2020-10-20 06:37:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,947 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:20,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:20,983 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:21,756 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 153 [2020-10-20 06:37:22,021 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-20 06:37:22,029 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:22,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:22,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:22,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:22,029 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:22,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:22,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:22,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:22,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: strtok_r.i_Iteration4_Lasso [2020-10-20 06:37:22,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:22,030 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:22,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,610 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2020-10-20 06:37:22,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:22,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:23,082 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-20 06:37:23,457 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-10-20 06:37:23,538 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:23,538 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 06:37:23,547 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,550 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,628 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,628 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,630 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:23,630 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:23,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,764 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 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 [2020-10-20 06:37:23,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,790 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,793 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 [2020-10-20 06:37:23,816 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 [2020-10-20 06:37:23,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,820 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 [2020-10-20 06:37:23,842 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:23,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:23,855 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 [2020-10-20 06:37:23,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:23,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:23,885 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 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 [2020-10-20 06:37:23,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,918 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:23,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:23,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:23,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:23,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:23,971 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) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:23,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:23,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:23,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:23,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:23,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:23,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,004 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 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,032 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:24,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,066 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 [2020-10-20 06:37:24,068 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) [2020-10-20 06:37:24,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:24,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,242 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) [2020-10-20 06:37:24,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,270 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 [2020-10-20 06:37:24,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,303 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 [2020-10-20 06:37:24,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,367 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,439 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,439 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,464 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) [2020-10-20 06:37:24,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,543 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 [2020-10-20 06:37:24,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,561 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 [2020-10-20 06:37:24,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:24,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:24,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:24,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:24,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:24,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:24,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:24,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:24,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:24,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:24,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:24,716 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-10-20 06:37:24,717 INFO L444 ModelExtractionUtils]: 42 out of 64 variables were initially zero. Simplification set additionally 19 variables to zero. 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) [2020-10-20 06:37:24,722 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:24,729 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:24,729 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:24,729 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strspn_~a~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc27.base)_2) = -1*ULTIMATE.start_strspn_~a~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc27.base)_2 Supporting invariants [] [2020-10-20 06:37:24,847 INFO L297 tatePredicateManager]: 21 out of 22 supporting invariants were superfluous and have been removed [2020-10-20 06:37:24,849 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:24,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:24,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 06:37:24,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:24,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:24,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:24,992 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-20 06:37:24,992 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 11 Second operand 5 states. [2020-10-20 06:37:25,088 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 42 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 100 states and 123 transitions. Complement of second has 7 states. [2020-10-20 06:37:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:25,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:37:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 45 transitions. [2020-10-20 06:37:25,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 8 letters. Loop has 4 letters. [2020-10-20 06:37:25,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:25,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 12 letters. Loop has 4 letters. [2020-10-20 06:37:25,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:25,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 45 transitions. Stem has 8 letters. Loop has 8 letters. [2020-10-20 06:37:25,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:25,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 123 transitions. [2020-10-20 06:37:25,094 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 28 [2020-10-20 06:37:25,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 79 states and 99 transitions. [2020-10-20 06:37:25,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2020-10-20 06:37:25,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2020-10-20 06:37:25,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 99 transitions. [2020-10-20 06:37:25,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:25,096 INFO L691 BuchiCegarLoop]: Abstraction has 79 states and 99 transitions. [2020-10-20 06:37:25,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 99 transitions. [2020-10-20 06:37:25,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 49. [2020-10-20 06:37:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 06:37:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2020-10-20 06:37:25,102 INFO L714 BuchiCegarLoop]: Abstraction has 49 states and 65 transitions. [2020-10-20 06:37:25,102 INFO L594 BuchiCegarLoop]: Abstraction has 49 states and 65 transitions. [2020-10-20 06:37:25,102 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:37:25,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 65 transitions. [2020-10-20 06:37:25,103 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:25,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:25,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:25,104 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:25,104 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:25,105 INFO L794 eck$LassoCheckResult]: Stem: 659#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 633#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 631#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 624#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 625#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 632#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 640#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 636#L510-1 assume !(0 != strspn_#t~mem10);havoc strspn_#t~mem10; 626#L510-5 strspn_#res := strspn_~l~0; 627#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 644#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 635#L523-4 [2020-10-20 06:37:25,105 INFO L796 eck$LassoCheckResult]: Loop: 635#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 641#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 655#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 628#L524-1 assume !(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15; 629#L524-5 strcspn_#t~pre16 := 1 + strcspn_~l~1;strcspn_~l~1 := 1 + strcspn_~l~1;havoc strcspn_#t~pre16; 634#L523-3 strcspn_#t~pre11.base, strcspn_#t~pre11.offset := strcspn_~s.base, 1 + strcspn_~s.offset;strcspn_~s.base, strcspn_~s.offset := strcspn_~s.base, 1 + strcspn_~s.offset;havoc strcspn_#t~pre11.base, strcspn_#t~pre11.offset; 635#L523-4 [2020-10-20 06:37:25,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,105 INFO L82 PathProgramCache]: Analyzing trace with hash -2118613646, now seen corresponding path program 1 times [2020-10-20 06:37:25,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218502200] [2020-10-20 06:37:25,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:25,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218502200] [2020-10-20 06:37:25,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:25,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:37:25,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478472987] [2020-10-20 06:37:25,245 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:25,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1361307093, now seen corresponding path program 1 times [2020-10-20 06:37:25,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475618036] [2020-10-20 06:37:25,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,256 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:25,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:25,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:37:25,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:37:25,317 INFO L87 Difference]: Start difference. First operand 49 states and 65 transitions. cyclomatic complexity: 21 Second operand 9 states. [2020-10-20 06:37:25,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:25,492 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2020-10-20 06:37:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:37:25,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 73 transitions. [2020-10-20 06:37:25,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:25,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 55 states and 70 transitions. [2020-10-20 06:37:25,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-10-20 06:37:25,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-10-20 06:37:25,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 70 transitions. [2020-10-20 06:37:25,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:25,497 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 70 transitions. [2020-10-20 06:37:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 70 transitions. [2020-10-20 06:37:25,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2020-10-20 06:37:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-20 06:37:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2020-10-20 06:37:25,502 INFO L714 BuchiCegarLoop]: Abstraction has 49 states and 64 transitions. [2020-10-20 06:37:25,502 INFO L594 BuchiCegarLoop]: Abstraction has 49 states and 64 transitions. [2020-10-20 06:37:25,502 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 06:37:25,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 64 transitions. [2020-10-20 06:37:25,503 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:25,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:25,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:25,503 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:25,503 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:25,504 INFO L794 eck$LassoCheckResult]: Stem: 789#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 763#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 762#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 755#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 756#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 764#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 771#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 776#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; 800#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 787#L511-1 assume !strspn_#t~short7; 788#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 782#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 783#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; 773#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; 774#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 767#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; 768#L511-6 [2020-10-20 06:37:25,504 INFO L796 eck$LassoCheckResult]: Loop: 768#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 778#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; 786#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 791#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; 768#L511-6 [2020-10-20 06:37:25,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,504 INFO L82 PathProgramCache]: Analyzing trace with hash 60739587, now seen corresponding path program 1 times [2020-10-20 06:37:25,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790357740] [2020-10-20 06:37:25,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:25,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790357740] [2020-10-20 06:37:25,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:25,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:37:25,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436998399] [2020-10-20 06:37:25,536 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1911846, now seen corresponding path program 2 times [2020-10-20 06:37:25,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135644187] [2020-10-20 06:37:25,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,545 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:25,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:25,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:37:25,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:37:25,645 INFO L87 Difference]: Start difference. First operand 49 states and 64 transitions. cyclomatic complexity: 20 Second operand 5 states. [2020-10-20 06:37:25,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:25,696 INFO L93 Difference]: Finished difference Result 74 states and 91 transitions. [2020-10-20 06:37:25,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:37:25,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 91 transitions. [2020-10-20 06:37:25,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 22 [2020-10-20 06:37:25,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 71 states and 87 transitions. [2020-10-20 06:37:25,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2020-10-20 06:37:25,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2020-10-20 06:37:25,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 87 transitions. [2020-10-20 06:37:25,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:25,700 INFO L691 BuchiCegarLoop]: Abstraction has 71 states and 87 transitions. [2020-10-20 06:37:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 87 transitions. [2020-10-20 06:37:25,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 50. [2020-10-20 06:37:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-20 06:37:25,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2020-10-20 06:37:25,704 INFO L714 BuchiCegarLoop]: Abstraction has 50 states and 64 transitions. [2020-10-20 06:37:25,704 INFO L594 BuchiCegarLoop]: Abstraction has 50 states and 64 transitions. [2020-10-20 06:37:25,704 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 06:37:25,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 64 transitions. [2020-10-20 06:37:25,704 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-20 06:37:25,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:25,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:25,705 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:25,705 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:37:25,713 INFO L794 eck$LassoCheckResult]: Stem: 924#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 896#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 895#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 888#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 889#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 897#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 904#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 900#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; 901#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 929#L511-1 assume !strspn_#t~short7; 925#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 915#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 916#L512 assume 0 == strspn_#t~mem8;havoc strspn_#t~mem8; 890#L510-5 strspn_#res := strspn_~l~0; 891#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 908#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 899#L523-4 [2020-10-20 06:37:25,713 INFO L796 eck$LassoCheckResult]: Loop: 899#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 905#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 920#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 892#L524-1 assume !(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15; 893#L524-5 strcspn_#t~pre16 := 1 + strcspn_~l~1;strcspn_~l~1 := 1 + strcspn_~l~1;havoc strcspn_#t~pre16; 898#L523-3 strcspn_#t~pre11.base, strcspn_#t~pre11.offset := strcspn_~s.base, 1 + strcspn_~s.offset;strcspn_~s.base, strcspn_~s.offset := strcspn_~s.base, 1 + strcspn_~s.offset;havoc strcspn_#t~pre11.base, strcspn_#t~pre11.offset; 899#L523-4 [2020-10-20 06:37:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,713 INFO L82 PathProgramCache]: Analyzing trace with hash 60685095, now seen corresponding path program 1 times [2020-10-20 06:37:25,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188764475] [2020-10-20 06:37:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,755 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:25,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1361307093, now seen corresponding path program 2 times [2020-10-20 06:37:25,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007379779] [2020-10-20 06:37:25,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,763 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,765 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:25,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:25,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1593745617, now seen corresponding path program 1 times [2020-10-20 06:37:25,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:25,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167879558] [2020-10-20 06:37:25,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:25,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:25,816 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:27,117 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 237 DAG size of output: 198 [2020-10-20 06:37:27,508 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-20 06:37:27,511 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:27,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:27,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:27,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:27,511 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:27,511 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:27,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:27,512 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:27,512 INFO L133 ssoRankerPreferences]: Filename of dumped script: strtok_r.i_Iteration7_Lasso [2020-10-20 06:37:27,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:27,512 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:27,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:27,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,363 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 142 [2020-10-20 06:37:28,521 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-20 06:37:28,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:28,788 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 06:37:29,040 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-20 06:37:29,366 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 06:37:29,632 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-20 06:37:29,801 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:29,801 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:29,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:29,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:29,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:29,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:29,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:29,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:29,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:29,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:29,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:29,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:29,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:29,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:29,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:29,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:29,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:29,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:29,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:29,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:37:29,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:29,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:29,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:29,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:29,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:29,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:29,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:29,867 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) [2020-10-20 06:37:29,889 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:29,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:29,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:29,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:29,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:29,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:29,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:29,898 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) [2020-10-20 06:37:29,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:29,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:29,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:29,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:29,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:29,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:29,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:29,926 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:29,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:29,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:29,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:29,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:29,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:29,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:29,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:29,980 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 [2020-10-20 06:37:30,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:30,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:30,039 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:30,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:30,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:30,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:30,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:30,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:30,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:30,229 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2020-10-20 06:37:30,229 INFO L444 ModelExtractionUtils]: 59 out of 91 variables were initially zero. Simplification set additionally 29 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:30,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:37:30,234 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:30,234 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:30,234 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~in~0.base)_2, ULTIMATE.start_strcspn_~s.offset) = 1*v_rep(select #length ULTIMATE.start_main_~in~0.base)_2 - 1*ULTIMATE.start_strcspn_~s.offset Supporting invariants [] [2020-10-20 06:37:30,403 INFO L297 tatePredicateManager]: 33 out of 34 supporting invariants were superfluous and have been removed [2020-10-20 06:37:30,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:30,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:30,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:37:30,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:30,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:30,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:30,495 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 06:37:30,495 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 64 transitions. cyclomatic complexity: 19 Second operand 4 states. [2020-10-20 06:37:30,555 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 64 transitions. cyclomatic complexity: 19. Second operand 4 states. Result 58 states and 74 transitions. Complement of second has 5 states. [2020-10-20 06:37:30,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:37:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2020-10-20 06:37:30,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 6 letters. [2020-10-20 06:37:30,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:30,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 22 letters. Loop has 6 letters. [2020-10-20 06:37:30,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:30,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 31 transitions. Stem has 16 letters. Loop has 12 letters. [2020-10-20 06:37:30,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:30,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 74 transitions. [2020-10-20 06:37:30,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-20 06:37:30,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 56 states and 72 transitions. [2020-10-20 06:37:30,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-10-20 06:37:30,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-10-20 06:37:30,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 72 transitions. [2020-10-20 06:37:30,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:30,563 INFO L691 BuchiCegarLoop]: Abstraction has 56 states and 72 transitions. [2020-10-20 06:37:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 72 transitions. [2020-10-20 06:37:30,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-20 06:37:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 06:37:30,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2020-10-20 06:37:30,566 INFO L714 BuchiCegarLoop]: Abstraction has 56 states and 72 transitions. [2020-10-20 06:37:30,566 INFO L594 BuchiCegarLoop]: Abstraction has 56 states and 72 transitions. [2020-10-20 06:37:30,566 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-20 06:37:30,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 72 transitions. [2020-10-20 06:37:30,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-20 06:37:30,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:30,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:30,567 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:30,568 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:30,568 INFO L794 eck$LassoCheckResult]: Stem: 1268#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1236#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 1235#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 1226#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 1227#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 1237#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 1244#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 1242#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; 1243#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 1255#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; 1273#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 1259#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 1260#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; 1248#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; 1249#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 1252#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; 1253#L511-6 [2020-10-20 06:37:30,568 INFO L796 eck$LassoCheckResult]: Loop: 1253#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 1254#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; 1274#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 1271#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; 1253#L511-6 [2020-10-20 06:37:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:30,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1714267775, now seen corresponding path program 2 times [2020-10-20 06:37:30,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:30,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112714613] [2020-10-20 06:37:30,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:30,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:30,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:30,599 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:30,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:30,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1911846, now seen corresponding path program 3 times [2020-10-20 06:37:30,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:30,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406804071] [2020-10-20 06:37:30,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:30,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:30,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:30,609 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:30,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1311163814, now seen corresponding path program 1 times [2020-10-20 06:37:30,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:30,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016274471] [2020-10-20 06:37:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:30,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:30,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:30,643 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:31,723 WARN L193 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 184 [2020-10-20 06:37:32,004 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-20 06:37:32,006 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:32,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:32,006 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:32,006 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:32,006 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:32,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:32,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:32,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:32,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: strtok_r.i_Iteration8_Lasso [2020-10-20 06:37:32,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:32,007 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:32,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,654 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-20 06:37:32,787 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-20 06:37:32,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:32,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:33,713 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:33,714 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:33,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:33,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:33,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,723 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:33,744 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:33,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:33,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:33,748 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 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:33,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:33,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:33,772 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 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:33,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:33,802 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:33,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:33,833 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 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:33,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:33,861 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 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:33,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:33,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:33,887 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 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:33,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:33,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:33,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:33,942 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 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:33,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:33,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:33,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:33,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:33,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:33,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:33,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:33,993 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 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:34,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:34,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:34,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:34,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:34,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:34,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:34,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:34,024 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 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:34,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:34,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:34,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:34,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:34,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:34,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:34,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:34,083 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:34,169 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2020-10-20 06:37:34,169 INFO L444 ModelExtractionUtils]: 11 out of 52 variables were initially zero. Simplification set additionally 38 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:34,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:34,182 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:34,182 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:34,182 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc27.base)_4, ULTIMATE.start_strspn_~a~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc27.base)_4 - 1*ULTIMATE.start_strspn_~a~0.offset Supporting invariants [] [2020-10-20 06:37:34,433 INFO L297 tatePredicateManager]: 34 out of 35 supporting invariants were superfluous and have been removed [2020-10-20 06:37:34,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:34,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:34,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 06:37:34,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:34,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:34,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:34,541 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-20 06:37:34,542 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 72 transitions. cyclomatic complexity: 22 Second operand 5 states. [2020-10-20 06:37:34,630 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 72 transitions. cyclomatic complexity: 22. Second operand 5 states. Result 116 states and 147 transitions. Complement of second has 7 states. [2020-10-20 06:37:34,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:37:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-20 06:37:34,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 16 letters. Loop has 4 letters. [2020-10-20 06:37:34,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:34,635 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:37:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:34,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 06:37:34,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:34,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:34,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:34,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:34,743 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-20 06:37:34,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 72 transitions. cyclomatic complexity: 22 Second operand 5 states. [2020-10-20 06:37:34,827 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 72 transitions. cyclomatic complexity: 22. Second operand 5 states. Result 116 states and 147 transitions. Complement of second has 7 states. [2020-10-20 06:37:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:34,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:37:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-20 06:37:34,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 16 letters. Loop has 4 letters. [2020-10-20 06:37:34,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:34,829 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:37:34,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:34,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 06:37:34,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:34,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:34,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:34,931 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-20 06:37:34,932 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 72 transitions. cyclomatic complexity: 22 Second operand 5 states. [2020-10-20 06:37:35,018 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 72 transitions. cyclomatic complexity: 22. Second operand 5 states. Result 99 states and 130 transitions. Complement of second has 6 states. [2020-10-20 06:37:35,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:37:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 56 transitions. [2020-10-20 06:37:35,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 16 letters. Loop has 4 letters. [2020-10-20 06:37:35,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:35,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 20 letters. Loop has 4 letters. [2020-10-20 06:37:35,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:35,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 56 transitions. Stem has 16 letters. Loop has 8 letters. [2020-10-20 06:37:35,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:35,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 130 transitions. [2020-10-20 06:37:35,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:35,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 61 states and 79 transitions. [2020-10-20 06:37:35,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-10-20 06:37:35,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-10-20 06:37:35,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 79 transitions. [2020-10-20 06:37:35,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:35,027 INFO L691 BuchiCegarLoop]: Abstraction has 61 states and 79 transitions. [2020-10-20 06:37:35,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 79 transitions. [2020-10-20 06:37:35,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 46. [2020-10-20 06:37:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 06:37:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2020-10-20 06:37:35,030 INFO L714 BuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2020-10-20 06:37:35,030 INFO L594 BuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2020-10-20 06:37:35,030 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-20 06:37:35,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 58 transitions. [2020-10-20 06:37:35,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:35,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:35,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:35,031 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:35,031 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:35,031 INFO L794 eck$LassoCheckResult]: Stem: 2035#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2005#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 2004#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 1995#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 1996#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 2006#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 2013#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 2009#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; 2010#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 2022#L511-1 assume !strspn_#t~short7; 2033#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 2025#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 2026#L512 assume 0 == strspn_#t~mem8;havoc strspn_#t~mem8; 1997#L510-5 strspn_#res := strspn_~l~0; 1998#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 2019#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 2014#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 2016#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 2031#L524-4 [2020-10-20 06:37:35,032 INFO L796 eck$LassoCheckResult]: Loop: 2031#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 1999#L524-1 assume !!(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15;call strcspn_#t~mem13 := read~int(strcspn_~s.base, strcspn_~s.offset, 1);call strcspn_#t~mem14 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 2000#L525 assume !(strcspn_#t~mem13 == strcspn_#t~mem14);havoc strcspn_#t~mem14;havoc strcspn_#t~mem13; 2029#L524-3 strcspn_#t~pre12 := 1 + strcspn_~i~0;strcspn_~i~0 := 1 + strcspn_~i~0;havoc strcspn_#t~pre12; 2031#L524-4 [2020-10-20 06:37:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:35,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1811163636, now seen corresponding path program 1 times [2020-10-20 06:37:35,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:35,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261509802] [2020-10-20 06:37:35,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:35,047 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:35,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:35,068 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:35,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:35,069 INFO L82 PathProgramCache]: Analyzing trace with hash 3329800, now seen corresponding path program 1 times [2020-10-20 06:37:35,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:35,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307971281] [2020-10-20 06:37:35,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:35,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:35,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:35,076 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:35,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:35,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1593747347, now seen corresponding path program 1 times [2020-10-20 06:37:35,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:35,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034672036] [2020-10-20 06:37:35,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:35,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034672036] [2020-10-20 06:37:35,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:35,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-20 06:37:35,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782357133] [2020-10-20 06:37:35,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:35,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:37:35,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:37:35,257 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. cyclomatic complexity: 16 Second operand 10 states. [2020-10-20 06:37:35,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:35,484 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2020-10-20 06:37:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:37:35,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 119 transitions. [2020-10-20 06:37:35,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-20 06:37:35,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 78 states and 97 transitions. [2020-10-20 06:37:35,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-10-20 06:37:35,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-10-20 06:37:35,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 97 transitions. [2020-10-20 06:37:35,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:35,492 INFO L691 BuchiCegarLoop]: Abstraction has 78 states and 97 transitions. [2020-10-20 06:37:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 97 transitions. [2020-10-20 06:37:35,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 46. [2020-10-20 06:37:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-20 06:37:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-10-20 06:37:35,496 INFO L714 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-10-20 06:37:35,496 INFO L594 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-10-20 06:37:35,496 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-20 06:37:35,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 57 transitions. [2020-10-20 06:37:35,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:35,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:35,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:35,498 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:35,498 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:35,498 INFO L794 eck$LassoCheckResult]: Stem: 2205#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2175#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 2174#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 2165#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 2166#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 2176#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 2183#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 2181#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; 2182#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 2193#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; 2210#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 2196#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 2197#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; 2187#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; 2188#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 2190#L510-1 assume !(0 != strspn_#t~mem10);havoc strspn_#t~mem10; 2167#L510-5 strspn_#res := strspn_~l~0; 2168#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 2189#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 2184#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 2185#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 2200#L524-4 [2020-10-20 06:37:35,498 INFO L796 eck$LassoCheckResult]: Loop: 2200#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 2169#L524-1 assume !!(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15;call strcspn_#t~mem13 := read~int(strcspn_~s.base, strcspn_~s.offset, 1);call strcspn_#t~mem14 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 2170#L525 assume !(strcspn_#t~mem13 == strcspn_#t~mem14);havoc strcspn_#t~mem14;havoc strcspn_#t~mem13; 2198#L524-3 strcspn_#t~pre12 := 1 + strcspn_~i~0;strcspn_~i~0 := 1 + strcspn_~i~0;havoc strcspn_#t~pre12; 2200#L524-4 [2020-10-20 06:37:35,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:35,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1960799173, now seen corresponding path program 1 times [2020-10-20 06:37:35,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:35,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765443171] [2020-10-20 06:37:35,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:35,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765443171] [2020-10-20 06:37:35,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777816790] [2020-10-20 06:37:35,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:37:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:35,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 47 conjunts are in the unsatisfiable core [2020-10-20 06:37:35,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:35,884 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2020-10-20 06:37:35,884 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:37:35,891 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:37:35,893 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 06:37:35,893 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:17 [2020-10-20 06:37:35,998 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-10-20 06:37:35,999 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:37:36,010 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:37:36,011 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-20 06:37:36,011 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:31, output treesize:26 [2020-10-20 06:37:36,207 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-20 06:37:36,210 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:37:36,211 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2020-10-20 06:37:36,212 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:37:36,218 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:37:36,220 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:37:36,220 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:23, output treesize:3 [2020-10-20 06:37:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:36,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:36,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2020-10-20 06:37:36,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436210130] [2020-10-20 06:37:36,248 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:36,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:36,250 INFO L82 PathProgramCache]: Analyzing trace with hash 3329800, now seen corresponding path program 2 times [2020-10-20 06:37:36,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:36,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742223071] [2020-10-20 06:37:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:36,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:36,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:36,269 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:36,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:36,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-20 06:37:36,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2020-10-20 06:37:36,326 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. cyclomatic complexity: 15 Second operand 20 states. [2020-10-20 06:37:36,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:36,908 INFO L93 Difference]: Finished difference Result 92 states and 114 transitions. [2020-10-20 06:37:36,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:37:36,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 114 transitions. [2020-10-20 06:37:36,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:36,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 89 states and 111 transitions. [2020-10-20 06:37:36,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-10-20 06:37:36,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-10-20 06:37:36,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 111 transitions. [2020-10-20 06:37:36,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:36,912 INFO L691 BuchiCegarLoop]: Abstraction has 89 states and 111 transitions. [2020-10-20 06:37:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 111 transitions. [2020-10-20 06:37:36,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 57. [2020-10-20 06:37:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 06:37:36,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2020-10-20 06:37:36,920 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-10-20 06:37:36,920 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-10-20 06:37:36,920 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-20 06:37:36,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 71 transitions. [2020-10-20 06:37:36,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:36,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:36,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:36,922 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:36,922 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:36,923 INFO L794 eck$LassoCheckResult]: Stem: 2444#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2412#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 2411#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 2402#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 2403#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 2413#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 2420#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 2416#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; 2417#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 2429#L511-1 assume !strspn_#t~short7; 2443#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 2445#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; 2430#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 2431#L511-1 assume !strspn_#t~short7; 2442#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 2432#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 2433#L512 assume 0 == strspn_#t~mem8;havoc strspn_#t~mem8; 2404#L510-5 strspn_#res := strspn_~l~0; 2405#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 2426#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 2421#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 2422#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 2440#L524-4 [2020-10-20 06:37:36,923 INFO L796 eck$LassoCheckResult]: Loop: 2440#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 2406#L524-1 assume !!(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15;call strcspn_#t~mem13 := read~int(strcspn_~s.base, strcspn_~s.offset, 1);call strcspn_#t~mem14 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 2407#L525 assume !(strcspn_#t~mem13 == strcspn_#t~mem14);havoc strcspn_#t~mem14;havoc strcspn_#t~mem13; 2436#L524-3 strcspn_#t~pre12 := 1 + strcspn_~i~0;strcspn_~i~0 := 1 + strcspn_~i~0;havoc strcspn_#t~pre12; 2440#L524-4 [2020-10-20 06:37:36,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:36,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1052721677, now seen corresponding path program 1 times [2020-10-20 06:37:36,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:36,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22326578] [2020-10-20 06:37:36,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:36,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22326578] [2020-10-20 06:37:36,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:37:36,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:37:36,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314388430] [2020-10-20 06:37:36,946 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:36,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:36,947 INFO L82 PathProgramCache]: Analyzing trace with hash 3329800, now seen corresponding path program 3 times [2020-10-20 06:37:36,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:36,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977632393] [2020-10-20 06:37:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:36,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:36,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:36,953 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:36,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:36,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:37:36,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:37:36,994 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. cyclomatic complexity: 19 Second operand 3 states. [2020-10-20 06:37:37,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:37,009 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2020-10-20 06:37:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:37:37,010 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 72 transitions. [2020-10-20 06:37:37,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:37,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 58 states and 69 transitions. [2020-10-20 06:37:37,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-10-20 06:37:37,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-10-20 06:37:37,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 69 transitions. [2020-10-20 06:37:37,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:37,011 INFO L691 BuchiCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-10-20 06:37:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 69 transitions. [2020-10-20 06:37:37,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-10-20 06:37:37,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 06:37:37,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-10-20 06:37:37,014 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-10-20 06:37:37,014 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-10-20 06:37:37,014 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-20 06:37:37,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 68 transitions. [2020-10-20 06:37:37,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:37,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:37,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:37,016 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:37,016 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:37,016 INFO L794 eck$LassoCheckResult]: Stem: 2568#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2536#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 2535#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 2526#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 2527#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 2537#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 2544#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 2540#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; 2541#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 2553#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; 2574#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 2573#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; 2572#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 2565#L511-1 assume !strspn_#t~short7; 2566#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 2556#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 2557#L512 assume 0 == strspn_#t~mem8;havoc strspn_#t~mem8; 2528#L510-5 strspn_#res := strspn_~l~0; 2529#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 2550#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 2545#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 2546#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 2563#L524-4 [2020-10-20 06:37:37,016 INFO L796 eck$LassoCheckResult]: Loop: 2563#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 2530#L524-1 assume !!(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15;call strcspn_#t~mem13 := read~int(strcspn_~s.base, strcspn_~s.offset, 1);call strcspn_#t~mem14 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 2531#L525 assume !(strcspn_#t~mem13 == strcspn_#t~mem14);havoc strcspn_#t~mem14;havoc strcspn_#t~mem13; 2560#L524-3 strcspn_#t~pre12 := 1 + strcspn_~i~0;strcspn_~i~0 := 1 + strcspn_~i~0;havoc strcspn_#t~pre12; 2563#L524-4 [2020-10-20 06:37:37,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:37,016 INFO L82 PathProgramCache]: Analyzing trace with hash -465915663, now seen corresponding path program 1 times [2020-10-20 06:37:37,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:37,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723109584] [2020-10-20 06:37:37,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:37,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:37,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:37,049 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:37,050 INFO L82 PathProgramCache]: Analyzing trace with hash 3329800, now seen corresponding path program 4 times [2020-10-20 06:37:37,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:37,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893245412] [2020-10-20 06:37:37,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:37,053 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:37,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:37,056 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:37,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:37,056 INFO L82 PathProgramCache]: Analyzing trace with hash -187987976, now seen corresponding path program 1 times [2020-10-20 06:37:37,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:37,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479004836] [2020-10-20 06:37:37,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:37,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:37,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:37,091 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:38,441 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 283 DAG size of output: 221 [2020-10-20 06:37:38,787 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-20 06:37:38,795 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:38,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:38,795 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:38,795 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:38,795 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:38,795 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:38,795 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:38,795 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:38,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: strtok_r.i_Iteration12_Lasso [2020-10-20 06:37:38,796 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:38,796 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:38,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:38,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:39,917 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 153 [2020-10-20 06:37:40,090 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-10-20 06:37:40,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:40,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:40,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:40,372 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-20 06:37:40,636 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 06:37:40,966 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-20 06:37:41,271 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-10-20 06:37:41,509 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 06:37:41,577 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:41,578 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:41,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,590 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 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,614 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 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,637 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 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,661 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 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,685 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 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,718 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,741 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 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,768 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 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,792 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 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,816 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 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,842 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:41,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,866 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 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,890 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 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:41,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:41,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:41,940 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 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,966 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:41,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:41,969 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 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:41,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:41,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:41,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:41,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:41,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:41,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:41,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:41,998 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 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,022 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 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,046 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 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,072 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 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,093 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 [2020-10-20 06:37:42,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,096 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 92 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,124 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 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,150 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 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,175 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 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,201 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 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,227 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 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,251 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 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,276 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 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,302 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 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,327 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 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,353 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 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,377 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 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,401 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 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,426 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 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,449 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 [2020-10-20 06:37:42,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:42,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:42,455 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 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:42,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:42,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:42,479 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 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:42,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:42,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:42,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:42,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:42,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:42,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:42,572 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:42,739 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2020-10-20 06:37:42,739 INFO L444 ModelExtractionUtils]: 51 out of 85 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:42,743 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:42,748 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 06:37:42,748 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:42,749 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcspn_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc27.base)_5) = -1*ULTIMATE.start_strcspn_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc27.base)_5 Supporting invariants [1*ULTIMATE.start_strcspn_~reject.offset >= 0] [2020-10-20 06:37:43,043 INFO L297 tatePredicateManager]: 53 out of 55 supporting invariants were superfluous and have been removed [2020-10-20 06:37:43,047 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:43,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:43,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-20 06:37:43,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:43,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:37:43,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:43,177 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-10-20 06:37:43,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 68 transitions. cyclomatic complexity: 16 Second operand 5 states. [2020-10-20 06:37:43,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 68 transitions. cyclomatic complexity: 16. Second operand 5 states. Result 84 states and 98 transitions. Complement of second has 7 states. [2020-10-20 06:37:43,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-20 06:37:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-20 06:37:43,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 22 letters. Loop has 4 letters. [2020-10-20 06:37:43,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:43,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 26 letters. Loop has 4 letters. [2020-10-20 06:37:43,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:43,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 22 letters. Loop has 8 letters. [2020-10-20 06:37:43,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:43,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 98 transitions. [2020-10-20 06:37:43,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:43,258 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 68 states and 80 transitions. [2020-10-20 06:37:43,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-10-20 06:37:43,258 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-10-20 06:37:43,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 80 transitions. [2020-10-20 06:37:43,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:43,258 INFO L691 BuchiCegarLoop]: Abstraction has 68 states and 80 transitions. [2020-10-20 06:37:43,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 80 transitions. [2020-10-20 06:37:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2020-10-20 06:37:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-20 06:37:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2020-10-20 06:37:43,262 INFO L714 BuchiCegarLoop]: Abstraction has 63 states and 74 transitions. [2020-10-20 06:37:43,262 INFO L594 BuchiCegarLoop]: Abstraction has 63 states and 74 transitions. [2020-10-20 06:37:43,262 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-10-20 06:37:43,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 74 transitions. [2020-10-20 06:37:43,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:43,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:43,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:43,264 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:43,264 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:43,264 INFO L794 eck$LassoCheckResult]: Stem: 3043#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3006#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 3005#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 2997#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 2998#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 3007#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 3014#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 3010#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; 3011#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 3025#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; 3049#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 3048#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; 3047#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 3039#L511-1 assume !strspn_#t~short7; 3040#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 3029#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 3030#L512 assume 0 == strspn_#t~mem8;havoc strspn_#t~mem8; 2999#L510-5 strspn_#res := strspn_~l~0; 3000#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 3021#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 3015#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 3016#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 3056#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3050#L524-1 assume !(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15; 3045#L524-5 strcspn_#t~pre16 := 1 + strcspn_~l~1;strcspn_~l~1 := 1 + strcspn_~l~1;havoc strcspn_#t~pre16; 3008#L523-3 strcspn_#t~pre11.base, strcspn_#t~pre11.offset := strcspn_~s.base, 1 + strcspn_~s.offset;strcspn_~s.base, strcspn_~s.offset := strcspn_~s.base, 1 + strcspn_~s.offset;havoc strcspn_#t~pre11.base, strcspn_#t~pre11.offset; 3009#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 3017#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 3037#L524-4 [2020-10-20 06:37:43,265 INFO L796 eck$LassoCheckResult]: Loop: 3037#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3001#L524-1 assume !!(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15;call strcspn_#t~mem13 := read~int(strcspn_~s.base, strcspn_~s.offset, 1);call strcspn_#t~mem14 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3002#L525 assume !(strcspn_#t~mem13 == strcspn_#t~mem14);havoc strcspn_#t~mem14;havoc strcspn_#t~mem13; 3033#L524-3 strcspn_#t~pre12 := 1 + strcspn_~i~0;strcspn_~i~0 := 1 + strcspn_~i~0;havoc strcspn_#t~pre12; 3037#L524-4 [2020-10-20 06:37:43,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:43,265 INFO L82 PathProgramCache]: Analyzing trace with hash -269478821, now seen corresponding path program 1 times [2020-10-20 06:37:43,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:43,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036706647] [2020-10-20 06:37:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:43,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:37:43,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036706647] [2020-10-20 06:37:43,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254123815] [2020-10-20 06:37:43,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:37:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:43,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 41 conjunts are in the unsatisfiable core [2020-10-20 06:37:43,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:43,551 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 06:37:43,677 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2020-10-20 06:37:43,678 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:37:43,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:37:43,680 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:37:43,680 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2020-10-20 06:37:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:43,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:37:43,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 15 [2020-10-20 06:37:43,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875401030] [2020-10-20 06:37:43,683 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:37:43,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:43,684 INFO L82 PathProgramCache]: Analyzing trace with hash 3329800, now seen corresponding path program 5 times [2020-10-20 06:37:43,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:43,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399442565] [2020-10-20 06:37:43,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:43,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:43,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:43,690 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:43,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:37:43,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-20 06:37:43,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:37:43,741 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. cyclomatic complexity: 17 Second operand 15 states. [2020-10-20 06:37:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:37:44,444 INFO L93 Difference]: Finished difference Result 141 states and 160 transitions. [2020-10-20 06:37:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-20 06:37:44,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 160 transitions. [2020-10-20 06:37:44,447 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-10-20 06:37:44,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 139 states and 158 transitions. [2020-10-20 06:37:44,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2020-10-20 06:37:44,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2020-10-20 06:37:44,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 158 transitions. [2020-10-20 06:37:44,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:37:44,450 INFO L691 BuchiCegarLoop]: Abstraction has 139 states and 158 transitions. [2020-10-20 06:37:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 158 transitions. [2020-10-20 06:37:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 66. [2020-10-20 06:37:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-20 06:37:44,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2020-10-20 06:37:44,454 INFO L714 BuchiCegarLoop]: Abstraction has 66 states and 77 transitions. [2020-10-20 06:37:44,454 INFO L594 BuchiCegarLoop]: Abstraction has 66 states and 77 transitions. [2020-10-20 06:37:44,454 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-10-20 06:37:44,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 77 transitions. [2020-10-20 06:37:44,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:37:44,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:37:44,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:37:44,455 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:37:44,456 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-20 06:37:44,456 INFO L794 eck$LassoCheckResult]: Stem: 3363#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3331#L-1 havoc main_#res;havoc main_#t~nondet24, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~nondet26, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~ret28.base, main_#t~ret28.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~delim_len~0, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;main_~in_len~0 := main_#t~nondet24;havoc main_#t~nondet24; 3330#L544 assume !(main_~in_len~0 < 1);call main_#t~malloc25.base, main_#t~malloc25.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc25.base, main_#t~malloc25.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~delim_len~0 := main_#t~nondet26;havoc main_#t~nondet26; 3322#L548 assume !(main_~delim_len~0 < 1);call main_#t~malloc27.base, main_#t~malloc27.offset := #Ultimate.allocOnStack(main_~delim_len~0);main_~delim~0.base, main_~delim~0.offset := main_#t~malloc27.base, main_#t~malloc27.offset;call main_~#ptr~0.base, main_~#ptr~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, main_~#ptr~0.base, main_~#ptr~0.offset, 8);strtok_r_#in~s.base, strtok_r_#in~s.offset, strtok_r_#in~delim.base, strtok_r_#in~delim.offset, strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset := main_~in~0.base, main_~in~0.offset, main_~delim~0.base, main_~delim~0.offset, main_~#ptr~0.base, main_~#ptr~0.offset;havoc strtok_r_#res.base, strtok_r_#res.offset;havoc strtok_r_#t~mem18.base, strtok_r_#t~mem18.offset, strtok_r_#t~ret19, strtok_r_#t~mem20, strtok_r_#t~ret21, strtok_r_#t~mem22, strtok_r_#t~post23.base, strtok_r_#t~post23.offset, strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset, strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset, strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_#in~s.base, strtok_r_#in~s.offset;strtok_r_~delim.base, strtok_r_~delim.offset := strtok_r_#in~delim.base, strtok_r_#in~delim.offset;strtok_r_~ptrptr.base, strtok_r_~ptrptr.offset := strtok_r_#in~ptrptr.base, strtok_r_#in~ptrptr.offset;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := 0, 0; 3323#L532 assume !(strtok_r_~s.base == 0 && strtok_r_~s.offset == 0); 3332#L532-2 strspn_#in~s.base, strspn_#in~s.offset, strspn_#in~accept.base, strspn_#in~accept.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.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; 3339#L510-4 call strspn_#t~mem10 := read~int(strspn_~s.base, strspn_~s.offset, 1); 3335#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; 3336#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 3348#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; 3368#L511-3 assume !!strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 3367#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; 3366#L511-6 call strspn_#t~mem6 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1);strspn_#t~short7 := 0 != strspn_#t~mem6; 3360#L511-1 assume !strspn_#t~short7; 3361#L511-3 assume !strspn_#t~short7;havoc strspn_#t~mem5;havoc strspn_#t~mem6;havoc strspn_#t~short7;havoc strspn_#t~mem4; 3351#L511-7 call strspn_#t~mem8 := read~int(strspn_~a~0.base, strspn_~a~0.offset, 1); 3352#L512 assume 0 == strspn_#t~mem8;havoc strspn_#t~mem8; 3324#L510-5 strspn_#res := strspn_~l~0; 3325#L517 strtok_r_#t~ret19 := strspn_#res;strtok_r_~s.base, strtok_r_~s.offset := strtok_r_~s.base, strtok_r_~s.offset + strtok_r_#t~ret19 % 4294967296;havoc strtok_r_#t~ret19;call strtok_r_#t~mem20 := read~int(strtok_r_~s.base, strtok_r_~s.offset, 1); 3346#L534 assume 0 != strtok_r_#t~mem20;havoc strtok_r_#t~mem20;strtok_r_~tmp~0.base, strtok_r_~tmp~0.offset := strtok_r_~s.base, strtok_r_~s.offset;strcspn_#in~s.base, strcspn_#in~s.offset, strcspn_#in~reject.base, strcspn_#in~reject.offset := strtok_r_~s.base, strtok_r_~s.offset, strtok_r_~delim.base, strtok_r_~delim.offset;havoc strcspn_#res;havoc strcspn_#t~mem13, strcspn_#t~mem14, strcspn_#t~pre12, strcspn_#t~mem15, strcspn_#t~pre16, strcspn_#t~pre11.base, strcspn_#t~pre11.offset, strcspn_#t~mem17, strcspn_~s.base, strcspn_~s.offset, strcspn_~reject.base, strcspn_~reject.offset, strcspn_~l~1, strcspn_~i~0;strcspn_~s.base, strcspn_~s.offset := strcspn_#in~s.base, strcspn_#in~s.offset;strcspn_~reject.base, strcspn_~reject.offset := strcspn_#in~reject.base, strcspn_#in~reject.offset;strcspn_~l~1 := 0;havoc strcspn_~i~0; 3340#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 3341#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 3358#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3328#L524-1 assume !!(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15;call strcspn_#t~mem13 := read~int(strcspn_~s.base, strcspn_~s.offset, 1);call strcspn_#t~mem14 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3329#L525 assume !(strcspn_#t~mem13 == strcspn_#t~mem14);havoc strcspn_#t~mem14;havoc strcspn_#t~mem13; 3356#L524-3 strcspn_#t~pre12 := 1 + strcspn_~i~0;strcspn_~i~0 := 1 + strcspn_~i~0;havoc strcspn_#t~pre12; 3359#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3369#L524-1 assume !(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15; 3364#L524-5 strcspn_#t~pre16 := 1 + strcspn_~l~1;strcspn_~l~1 := 1 + strcspn_~l~1;havoc strcspn_#t~pre16; 3333#L523-3 strcspn_#t~pre11.base, strcspn_#t~pre11.offset := strcspn_~s.base, 1 + strcspn_~s.offset;strcspn_~s.base, strcspn_~s.offset := strcspn_~s.base, 1 + strcspn_~s.offset;havoc strcspn_#t~pre11.base, strcspn_#t~pre11.offset; 3334#L523-4 call strcspn_#t~mem17 := read~int(strcspn_~s.base, strcspn_~s.offset, 1); 3342#L523-1 assume !!(0 != strcspn_#t~mem17);havoc strcspn_#t~mem17;strcspn_~i~0 := 0; 3357#L524-4 [2020-10-20 06:37:44,456 INFO L796 eck$LassoCheckResult]: Loop: 3357#L524-4 call strcspn_#t~mem15 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3326#L524-1 assume !!(0 != strcspn_#t~mem15);havoc strcspn_#t~mem15;call strcspn_#t~mem13 := read~int(strcspn_~s.base, strcspn_~s.offset, 1);call strcspn_#t~mem14 := read~int(strcspn_~reject.base, strcspn_~reject.offset + strcspn_~i~0, 1); 3327#L525 assume !(strcspn_#t~mem13 == strcspn_#t~mem14);havoc strcspn_#t~mem14;havoc strcspn_#t~mem13; 3355#L524-3 strcspn_#t~pre12 := 1 + strcspn_~i~0;strcspn_~i~0 := 1 + strcspn_~i~0;havoc strcspn_#t~pre12; 3357#L524-4 [2020-10-20 06:37:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:44,456 INFO L82 PathProgramCache]: Analyzing trace with hash 579815970, now seen corresponding path program 1 times [2020-10-20 06:37:44,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:44,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663493433] [2020-10-20 06:37:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:44,470 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:44,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:44,491 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:44,491 INFO L82 PathProgramCache]: Analyzing trace with hash 3329800, now seen corresponding path program 6 times [2020-10-20 06:37:44,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:44,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716512063] [2020-10-20 06:37:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:44,494 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:44,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:44,497 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:44,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:44,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1474175145, now seen corresponding path program 2 times [2020-10-20 06:37:44,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:37:44,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239637615] [2020-10-20 06:37:44,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:37:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:44,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:37:44,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:37:44,534 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:37:46,617 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 334 DAG size of output: 255 [2020-10-20 06:37:47,121 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-20 06:37:47,124 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:37:47,124 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:37:47,124 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:37:47,124 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:37:47,124 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:37:47,124 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:47,124 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:37:47,124 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:37:47,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: strtok_r.i_Iteration14_Lasso [2020-10-20 06:37:47,125 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:37:47,125 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:37:47,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:47,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,242 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 158 [2020-10-20 06:37:48,412 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2020-10-20 06:37:48,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:37:48,632 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 06:37:48,983 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-20 06:37:49,250 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-20 06:37:49,697 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-10-20 06:37:50,018 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-20 06:37:50,131 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:37:50,131 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,146 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 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,171 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 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:50,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:50,199 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 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,223 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 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,248 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 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,281 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 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,305 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 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,330 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 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,355 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 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,379 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 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,403 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 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,425 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 [2020-10-20 06:37:50,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,429 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 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,453 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 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,477 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 124 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,500 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 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,526 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 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,551 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 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,577 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 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:50,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:50,608 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 129 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,632 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:50,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:37:50,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:37:50,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:37:50,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:50,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:50,710 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 132 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 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:50,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,734 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-10-20 06:37:50,735 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2020-10-20 06:37:50,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,785 INFO L401 nArgumentSynthesizer]: We have 136 Motzkin's Theorem applications. [2020-10-20 06:37:50,785 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2020-10-20 06:37:50,905 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 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:50,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:50,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:37:50,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:50,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:50,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:50,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:50,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:50,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:50,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:50,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:51,002 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 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:51,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:51,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:51,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:51,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:51,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:51,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:51,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:51,041 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 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:51,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:51,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:51,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:51,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:51,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:51,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:51,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:51,087 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 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:37:51,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:37:51,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:37:51,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:37:51,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:37:51,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:37:51,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:37:51,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:51,177 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:37:51,241 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-10-20 06:37:51,241 INFO L444 ModelExtractionUtils]: 62 out of 91 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 138 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 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:37:51,253 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:37:51,255 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:37:51,255 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:37:51,255 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcspn_~i~0, v_rep(select #length ULTIMATE.start_strspn_~a~0.base)_6, ULTIMATE.start_strcspn_~reject.offset) = -1*ULTIMATE.start_strcspn_~i~0 + 1*v_rep(select #length ULTIMATE.start_strspn_~a~0.base)_6 - 1*ULTIMATE.start_strcspn_~reject.offset Supporting invariants [] [2020-10-20 06:37:51,528 INFO L297 tatePredicateManager]: 52 out of 54 supporting invariants were superfluous and have been removed [2020-10-20 06:37:51,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:37:51,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:51,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-20 06:37:51,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:51,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:51,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:51,711 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2020-10-20 06:37:51,711 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 77 transitions. cyclomatic complexity: 17 Second operand 7 states. [2020-10-20 06:37:51,830 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 77 transitions. cyclomatic complexity: 17. Second operand 7 states. Result 81 states and 94 transitions. Complement of second has 9 states. [2020-10-20 06:37:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 5 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:37:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2020-10-20 06:37:51,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 32 letters. Loop has 4 letters. [2020-10-20 06:37:51,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:51,836 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:37:51,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:51,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-20 06:37:51,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:52,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:52,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:52,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:52,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 2 loop predicates [2020-10-20 06:37:52,037 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 77 transitions. cyclomatic complexity: 17 Second operand 7 states. [2020-10-20 06:37:52,137 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 77 transitions. cyclomatic complexity: 17. Second operand 7 states. Result 81 states and 94 transitions. Complement of second has 9 states. [2020-10-20 06:37:52,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 5 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:37:52,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2020-10-20 06:37:52,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 32 letters. Loop has 4 letters. [2020-10-20 06:37:52,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:52,139 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:37:52,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:37:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:52,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-20 06:37:52,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:37:52,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 06:37:52,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:37:52,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:37:52,291 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2020-10-20 06:37:52,291 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 77 transitions. cyclomatic complexity: 17 Second operand 7 states. [2020-10-20 06:37:52,416 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 77 transitions. cyclomatic complexity: 17. Second operand 7 states. Result 84 states and 99 transitions. Complement of second has 8 states. [2020-10-20 06:37:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 5 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:37:52,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-20 06:37:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 42 transitions. [2020-10-20 06:37:52,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 32 letters. Loop has 4 letters. [2020-10-20 06:37:52,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:52,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 36 letters. Loop has 4 letters. [2020-10-20 06:37:52,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:52,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 32 letters. Loop has 8 letters. [2020-10-20 06:37:52,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:37:52,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 99 transitions. [2020-10-20 06:37:52,420 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:37:52,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 0 states and 0 transitions. [2020-10-20 06:37:52,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:37:52,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:37:52,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:37:52,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:37:52,421 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:37:52,421 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:37:52,421 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:37:52,421 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-10-20 06:37:52,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:37:52,422 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:37:52,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:37:52,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:37:52 BoogieIcfgContainer [2020-10-20 06:37:52,428 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:37:52,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:37:52,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:37:52,429 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:37:52,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:37:16" (3/4) ... [2020-10-20 06:37:52,433 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:37:52,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:37:52,434 INFO L168 Benchmark]: Toolchain (without parser) took 37499.75 ms. Allocated memory was 40.4 MB in the beginning and 183.5 MB in the end (delta: 143.1 MB). Free memory was 17.1 MB in the beginning and 65.3 MB in the end (delta: -48.2 MB). Peak memory consumption was 94.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:52,434 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 30.9 MB. Free memory was 6.8 MB in the beginning and 6.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:37:52,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.48 ms. Allocated memory was 40.4 MB in the beginning and 42.5 MB in the end (delta: 2.1 MB). Free memory was 16.2 MB in the beginning and 17.9 MB in the end (delta: -1.7 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:52,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.49 ms. Allocated memory is still 42.5 MB. Free memory was 17.9 MB in the beginning and 15.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:52,435 INFO L168 Benchmark]: Boogie Preprocessor took 35.56 ms. Allocated memory is still 42.5 MB. Free memory was 15.5 MB in the beginning and 13.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:52,436 INFO L168 Benchmark]: RCFGBuilder took 536.64 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 13.4 MB in the beginning and 17.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:52,436 INFO L168 Benchmark]: BuchiAutomizer took 36376.84 ms. Allocated memory was 44.0 MB in the beginning and 183.5 MB in the end (delta: 139.5 MB). Free memory was 17.5 MB in the beginning and 65.3 MB in the end (delta: -47.8 MB). Peak memory consumption was 91.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:37:52,436 INFO L168 Benchmark]: Witness Printer took 4.30 ms. Allocated memory is still 183.5 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:37:52,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 30.9 MB. Free memory was 6.8 MB in the beginning and 6.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 482.48 ms. Allocated memory was 40.4 MB in the beginning and 42.5 MB in the end (delta: 2.1 MB). Free memory was 16.2 MB in the beginning and 17.9 MB in the end (delta: -1.7 MB). Peak memory consumption was 6.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 54.49 ms. Allocated memory is still 42.5 MB. Free memory was 17.9 MB in the beginning and 15.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.56 ms. Allocated memory is still 42.5 MB. Free memory was 15.5 MB in the beginning and 13.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 536.64 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 13.4 MB in the beginning and 17.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 36376.84 ms. Allocated memory was 44.0 MB in the beginning and 183.5 MB in the end (delta: 139.5 MB). Free memory was 17.5 MB in the beginning and 65.3 MB in the end (delta: -47.8 MB). Peak memory consumption was 91.7 MB. Max. memory is 14.3 GB. * Witness Printer took 4.30 ms. Allocated memory is still 183.5 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 14 terminating modules (8 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len)] + -1 * s and consists of 5 locations. One deterministic module has affine ranking function -1 * a + unknown-#length-unknown[__builtin_alloca (delim_len)] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[in] + -1 * s and consists of 4 locations. One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (delim_len)] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (delim_len)] + -1 * a and consists of 5 locations. One nondeterministic module has affine ranking function -1 * i + unknown-#length-unknown[a] + -1 * reject and consists of 7 locations. 8 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.3s and 15 iterations. TraceHistogramMax:2. Analysis of lassos took 31.8s. Construction of modules took 0.8s. Büchi inclusion checks took 3.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 11. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 215 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 66 states and ocurred in iteration 13. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 493 SDtfs, 1203 SDslu, 682 SDs, 0 SdLazy, 845 SolverSat, 159 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU6 SILI1 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital365 mio100 ax100 hnf99 lsp95 ukn76 mio100 lsp41 div112 bol100 ite100 ukn100 eq193 hnf83 smp100 dnf117 smp91 tf100 neg97 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 174ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 12 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 136 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...