./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bee04d628cc50c5f036e0a10e9bd347013a62a54 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:03:49,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:03:49,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:03:49,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:03:49,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:03:49,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:03:49,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:03:49,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:03:49,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:03:49,514 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:03:49,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:03:49,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:03:49,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:03:49,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:03:49,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:03:49,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:03:49,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:03:49,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:03:49,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:03:49,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:03:49,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:03:49,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:03:49,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:03:49,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:03:49,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:03:49,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:03:49,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:03:49,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:03:49,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:03:49,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:03:49,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:03:49,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:03:49,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:03:49,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:03:49,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:03:49,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:03:49,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:03:49,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:03:49,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:03:49,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:03:49,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:03:49,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:03:49,575 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:03:49,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:03:49,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:03:49,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:03:49,577 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:03:49,577 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:03:49,578 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:03:49,578 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:03:49,578 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:03:49,579 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:03:49,579 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:03:49,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:03:49,580 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:03:49,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:03:49,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:03:49,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:03:49,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:03:49,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:03:49,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:03:49,582 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:03:49,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:03:49,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:03:49,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:03:49,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:03:49,583 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:03:49,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:03:49,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:03:49,584 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:03:49,585 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:03:49,586 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 -> bee04d628cc50c5f036e0a10e9bd347013a62a54 [2019-11-28 03:03:49,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:03:49,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:03:49,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:03:49,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:03:49,917 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:03:49,918 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2019-11-28 03:03:49,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47fbd3bd/a41f730551bc4a2ca80318ef87375567/FLAG29f1dfe57 [2019-11-28 03:03:50,489 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:03:50,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2019-11-28 03:03:50,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47fbd3bd/a41f730551bc4a2ca80318ef87375567/FLAG29f1dfe57 [2019-11-28 03:03:50,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47fbd3bd/a41f730551bc4a2ca80318ef87375567 [2019-11-28 03:03:50,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:03:50,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:03:50,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:03:50,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:03:50,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:03:50,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:50" (1/1) ... [2019-11-28 03:03:50,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aed937a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:50, skipping insertion in model container [2019-11-28 03:03:50,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:50" (1/1) ... [2019-11-28 03:03:50,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:03:50,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:03:51,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:03:51,380 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:03:51,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:03:51,497 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:03:51,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51 WrapperNode [2019-11-28 03:03:51,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:03:51,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:03:51,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:03:51,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:03:51,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:03:51,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:03:51,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:03:51,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:03:51,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (1/1) ... [2019-11-28 03:03:51,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:03:51,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:03:51,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:03:51,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:03:51,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (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 [2019-11-28 03:03:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:03:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:03:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:03:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:03:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:03:51,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:03:52,017 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:03:52,017 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 03:03:52,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:52 BoogieIcfgContainer [2019-11-28 03:03:52,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:03:52,019 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:03:52,020 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:03:52,023 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:03:52,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:03:52,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:03:50" (1/3) ... [2019-11-28 03:03:52,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40a0d494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:52, skipping insertion in model container [2019-11-28 03:03:52,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:03:52,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:51" (2/3) ... [2019-11-28 03:03:52,027 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40a0d494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:52, skipping insertion in model container [2019-11-28 03:03:52,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:03:52,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:52" (3/3) ... [2019-11-28 03:03:52,029 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcspn_mixed_alloca.i [2019-11-28 03:03:52,073 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:03:52,073 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:03:52,073 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:03:52,073 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:03:52,073 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:03:52,074 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:03:52,074 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:03:52,074 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:03:52,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 03:03:52,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 03:03:52,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:52,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:52,115 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:03:52,116 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:03:52,116 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:03:52,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 03:03:52,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 03:03:52,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:52,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:52,119 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:03:52,119 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:03:52,127 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 12#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 9#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 6#L369-4true [2019-11-28 03:03:52,127 INFO L796 eck$LassoCheckResult]: Loop: 6#L369-4true call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 18#L369-1true assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 20#L372-5true assume !true; 4#L372-6true call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 8#L374true assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 5#L369-3true cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 6#L369-4true [2019-11-28 03:03:52,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:52,133 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-28 03:03:52,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:52,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742115796] [2019-11-28 03:03:52,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,319 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:52,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:52,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2019-11-28 03:03:52,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:52,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647863788] [2019-11-28 03:03:52,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:03:52,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647863788] [2019-11-28 03:03:52,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:03:52,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 03:03:52,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986441953] [2019-11-28 03:03:52,383 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:03:52,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:03:52,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 03:03:52,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 03:03:52,420 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-11-28 03:03:52,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:03:52,431 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-28 03:03:52,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 03:03:52,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-28 03:03:52,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 03:03:52,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2019-11-28 03:03:52,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-28 03:03:52,450 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-28 03:03:52,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-28 03:03:52,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:03:52,454 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 03:03:52,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-28 03:03:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-28 03:03:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 03:03:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-11-28 03:03:52,493 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 03:03:52,493 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 03:03:52,493 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:03:52,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-11-28 03:03:52,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 03:03:52,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:52,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:52,497 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:03:52,497 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:03:52,497 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 50#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 51#L382 assume !(main_~length1~0 < 1); 52#L382-2 assume !(main_~length2~0 < 1); 49#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 47#L369-4 [2019-11-28 03:03:52,498 INFO L796 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 48#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 56#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 53#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 54#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;havoc cstrcspn_#t~mem208; 44#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 45#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 46#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 47#L369-4 [2019-11-28 03:03:52,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:52,498 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2019-11-28 03:03:52,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:52,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008530077] [2019-11-28 03:03:52,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,606 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:52,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:52,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2019-11-28 03:03:52,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:52,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336575048] [2019-11-28 03:03:52,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,671 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:52,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:52,672 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2019-11-28 03:03:52,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:52,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038464255] [2019-11-28 03:03:52,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:52,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:53,032 WARN L192 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-11-28 03:03:53,362 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-11-28 03:03:53,728 WARN L192 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2019-11-28 03:03:53,876 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-28 03:03:53,891 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:03:53,892 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:03:53,893 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:03:53,893 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:03:53,893 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:03:53,893 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:53,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:03:53,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:03:53,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_mixed_alloca.i_Iteration2_Lasso [2019-11-28 03:03:53,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:03:53,894 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:03:53,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:53,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:54,415 WARN L192 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-11-28 03:03:54,624 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-11-28 03:03:54,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:54,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:55,344 WARN L192 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2019-11-28 03:03:55,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:03:55,480 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) [2019-11-28 03:03:55,498 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 [2019-11-28 03:03:55,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,505 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 [2019-11-28 03:03:55,508 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) [2019-11-28 03:03:55,520 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 [2019-11-28 03:03:55,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,527 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:55,527 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,531 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) [2019-11-28 03:03:55,547 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 [2019-11-28 03:03:55,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,554 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 [2019-11-28 03:03:55,566 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 [2019-11-28 03:03:55,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:55,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:55,576 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,585 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 [2019-11-28 03:03:55,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,592 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 [2019-11-28 03:03:55,605 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 [2019-11-28 03:03:55,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,618 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) [2019-11-28 03:03:55,633 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 [2019-11-28 03:03:55,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,639 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 [2019-11-28 03:03:55,651 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 [2019-11-28 03:03:55,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,656 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 [2019-11-28 03:03:55,676 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 [2019-11-28 03:03:55,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,682 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 [2019-11-28 03:03:55,696 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 [2019-11-28 03:03:55,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,703 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) [2019-11-28 03:03:55,719 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 [2019-11-28 03:03:55,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,738 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 [2019-11-28 03:03:55,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,753 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 [2019-11-28 03:03:55,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-28 03:03:55,769 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 [2019-11-28 03:03:55,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-28 03:03:55,780 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 [2019-11-28 03:03:55,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-28 03:03:55,797 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 [2019-11-28 03:03:55,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:55,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:55,810 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 [2019-11-28 03:03:55,835 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 [2019-11-28 03:03:55,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:55,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:55,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-28 03:03:55,873 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 [2019-11-28 03:03:55,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:55,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:55,882 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) [2019-11-28 03:03:55,898 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 [2019-11-28 03:03:55,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,901 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2019-11-28 03:03:55,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,907 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-28 03:03:55,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,918 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 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 [2019-11-28 03:03:55,935 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 [2019-11-28 03:03:55,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,943 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:55,943 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:55,946 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 [2019-11-28 03:03:55,956 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 [2019-11-28 03:03:55,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:55,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:55,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:55,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:03:55,981 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 [2019-11-28 03:03:55,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:55,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:55,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:55,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:55,990 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:55,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:55,997 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 [2019-11-28 03:03:56,003 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 [2019-11-28 03:03:56,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:56,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:56,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:56,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:56,020 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:56,020 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:56,043 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:03:56,206 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-11-28 03:03:56,207 INFO L444 ModelExtractionUtils]: 17 out of 43 variables were initially zero. Simplification set additionally 23 variables to zero. 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) [2019-11-28 03:03:56,217 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:56,221 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:03:56,222 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:03:56,222 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcspn_~sc1~0.base)_1, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcspn_~sc1~0.base)_1 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [] [2019-11-28 03:03:56,265 INFO L297 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2019-11-28 03:03:56,275 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:03:56,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:56,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:03:56,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:56,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:03:56,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:03:56,386 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:03:56,387 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-28 03:03:56,456 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2019-11-28 03:03:56,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:03:56,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:03:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2019-11-28 03:03:56,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2019-11-28 03:03:56,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:56,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2019-11-28 03:03:56,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:56,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2019-11-28 03:03:56,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:56,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2019-11-28 03:03:56,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:03:56,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2019-11-28 03:03:56,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 03:03:56,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 03:03:56,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-11-28 03:03:56,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:03:56,474 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 03:03:56,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-11-28 03:03:56,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 03:03:56,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 03:03:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-11-28 03:03:56,480 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 03:03:56,480 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 03:03:56,480 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:03:56,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-11-28 03:03:56,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:03:56,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:56,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:56,485 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:03:56,485 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:03:56,486 INFO L794 eck$LassoCheckResult]: Stem: 180#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 177#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 178#L382 assume !(main_~length1~0 < 1); 179#L382-2 assume !(main_~length2~0 < 1); 176#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 173#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 175#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 185#L372-5 [2019-11-28 03:03:56,486 INFO L796 eck$LassoCheckResult]: Loop: 185#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 181#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 182#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 185#L372-5 [2019-11-28 03:03:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2019-11-28 03:03:56,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:56,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000215604] [2019-11-28 03:03:56,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:56,540 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:56,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:56,540 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2019-11-28 03:03:56,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:56,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856531077] [2019-11-28 03:03:56,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:56,562 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:56,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:56,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2019-11-28 03:03:56,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:56,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712923808] [2019-11-28 03:03:56,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:56,660 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:56,894 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-28 03:03:57,345 WARN L192 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2019-11-28 03:03:57,524 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-11-28 03:03:57,529 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:03:57,529 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:03:57,529 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:03:57,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:03:57,530 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:03:57,530 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:57,530 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:03:57,530 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:03:57,530 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_mixed_alloca.i_Iteration3_Lasso [2019-11-28 03:03:57,530 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:03:57,530 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:03:57,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:57,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:57,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:57,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:57,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:57,942 WARN L192 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-11-28 03:03:58,081 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-11-28 03:03:58,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:03:58,323 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-11-28 03:03:58,904 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-28 03:03:58,991 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:03:58,992 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 03:03:59,019 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 [2019-11-28 03:03:59,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:59,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:59,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:59,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:59,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:59,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:59,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:59,026 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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:59,030 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 [2019-11-28 03:03:59,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:59,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:59,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:59,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:59,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:59,034 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:59,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:59,048 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 [2019-11-28 03:03:59,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:59,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:59,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:59,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:59,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:59,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:59,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:59,051 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 [2019-11-28 03:03:59,057 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 [2019-11-28 03:03:59,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:59,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:03:59,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:59,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:59,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:59,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:03:59,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:03:59,068 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:03:59,074 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 [2019-11-28 03:03:59,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:59,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:59,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:59,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:59,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:59,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:59,089 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) [2019-11-28 03:03:59,102 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 [2019-11-28 03:03:59,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:59,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:59,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:59,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:03:59,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:59,109 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:59,115 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) [2019-11-28 03:03:59,121 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 [2019-11-28 03:03:59,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:03:59,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:03:59,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:03:59,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:59,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:03:59,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:03:59,162 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:03:59,215 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-28 03:03:59,215 INFO L444 ModelExtractionUtils]: 30 out of 52 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:03:59,222 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:03:59,227 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:03:59,227 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:03:59,228 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2) = 2*ULTIMATE.start_cstrcspn_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2 Supporting invariants [] [2019-11-28 03:03:59,311 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2019-11-28 03:03:59,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:03:59,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:59,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:03:59,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:59,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 03:03:59,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:03:59,400 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 [2019-11-28 03:03:59,400 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-28 03:03:59,454 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 43 states and 57 transitions. Complement of second has 6 states. [2019-11-28 03:03:59,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:03:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:03:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-28 03:03:59,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-28 03:03:59,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:59,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-28 03:03:59,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:59,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-28 03:03:59,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:03:59,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2019-11-28 03:03:59,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:03:59,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2019-11-28 03:03:59,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 03:03:59,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 03:03:59,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2019-11-28 03:03:59,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:03:59,460 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-28 03:03:59,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2019-11-28 03:03:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2019-11-28 03:03:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 03:03:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-11-28 03:03:59,463 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-28 03:03:59,463 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-28 03:03:59,463 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:03:59,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2019-11-28 03:03:59,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:03:59,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:03:59,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:03:59,464 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:03:59,464 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:03:59,465 INFO L794 eck$LassoCheckResult]: Stem: 369#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 362#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 363#L382 assume !(main_~length1~0 < 1); 364#L382-2 assume !(main_~length2~0 < 1); 361#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 357#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 358#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 371#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 367#L372-1 assume !cstrcspn_#t~short210; 368#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;havoc cstrcspn_#t~mem208; 353#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 354#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 355#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 356#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 360#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 370#L372-5 [2019-11-28 03:03:59,465 INFO L796 eck$LassoCheckResult]: Loop: 370#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 365#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 366#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 370#L372-5 [2019-11-28 03:03:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:59,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2019-11-28 03:03:59,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:59,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949505772] [2019-11-28 03:03:59,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:59,502 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:59,503 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2019-11-28 03:03:59,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:59,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517660854] [2019-11-28 03:03:59,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:03:59,514 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:03:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:03:59,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2019-11-28 03:03:59,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:03:59,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332926413] [2019-11-28 03:03:59,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:03:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:03:59,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332926413] [2019-11-28 03:03:59,624 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195441172] [2019-11-28 03:03:59,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 03:03:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:03:59,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-28 03:03:59,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:03:59,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:03:59,727 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:03:59,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 03:03:59,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 9 [2019-11-28 03:03:59,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942300819] [2019-11-28 03:03:59,908 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-28 03:03:59,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:03:59,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 03:03:59,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-28 03:03:59,910 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 9 states. [2019-11-28 03:04:00,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:04:00,136 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-11-28 03:04:00,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 03:04:00,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2019-11-28 03:04:00,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:04:00,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2019-11-28 03:04:00,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-28 03:04:00,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-28 03:04:00,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2019-11-28 03:04:00,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:00,145 INFO L688 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2019-11-28 03:04:00,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2019-11-28 03:04:00,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2019-11-28 03:04:00,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-28 03:04:00,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2019-11-28 03:04:00,150 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-11-28 03:04:00,151 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-11-28 03:04:00,151 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:04:00,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2019-11-28 03:04:00,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:04:00,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:00,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:00,153 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:00,153 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:04:00,154 INFO L794 eck$LassoCheckResult]: Stem: 521#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 514#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 515#L382 assume !(main_~length1~0 < 1); 516#L382-2 assume !(main_~length2~0 < 1); 513#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 509#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 510#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 529#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 519#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 520#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;havoc cstrcspn_#t~mem208; 505#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 506#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 507#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 508#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 512#L369-1 assume !!(0 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 522#L372-5 [2019-11-28 03:04:00,154 INFO L796 eck$LassoCheckResult]: Loop: 522#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 0 != cstrcspn_#t~mem208; 517#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 518#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset - 1;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 522#L372-5 [2019-11-28 03:04:00,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:00,154 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2019-11-28 03:04:00,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:00,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562512733] [2019-11-28 03:04:00,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:00,197 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:00,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:00,198 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2019-11-28 03:04:00,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:00,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814285731] [2019-11-28 03:04:00,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:00,208 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:00,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:00,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2019-11-28 03:04:00,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:00,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580484877] [2019-11-28 03:04:00,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:00,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:00,358 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-11-28 03:04:00,479 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-28 03:04:01,252 WARN L192 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 140 [2019-11-28 03:04:02,597 WARN L192 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 112 DAG size of output: 112 [2019-11-28 03:04:02,608 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:02,608 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:02,608 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:02,608 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:02,608 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:02,609 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:02,609 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:02,609 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:02,609 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_mixed_alloca.i_Iteration5_Lasso [2019-11-28 03:04:02,609 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:02,609 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:02,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:02,908 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-28 03:04:03,908 WARN L192 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-11-28 03:04:04,094 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-11-28 03:04:04,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:04,423 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-11-28 03:04:04,640 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-11-28 03:04:05,572 WARN L192 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2019-11-28 03:04:05,786 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-28 03:04:05,925 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:05,925 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 03:04:05,929 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 [2019-11-28 03:04:05,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:05,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:05,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:05,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:05,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:05,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:05,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:05,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-28 03:04:05,938 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 [2019-11-28 03:04:05,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:05,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:05,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:05,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:05,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:05,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:05,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:05,942 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:05,948 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 [2019-11-28 03:04:05,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:05,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:05,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:05,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:05,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:05,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:05,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:05,952 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 [2019-11-28 03:04:05,959 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 [2019-11-28 03:04:05,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:05,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:05,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:05,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:05,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:05,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:05,965 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 [2019-11-28 03:04:05,970 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 [2019-11-28 03:04:05,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:05,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:05,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:05,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:05,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:05,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:05,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:05,973 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 [2019-11-28 03:04:05,979 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 [2019-11-28 03:04:05,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:05,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:05,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:05,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:05,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:05,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:05,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:05,983 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 [2019-11-28 03:04:05,990 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 [2019-11-28 03:04:05,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:05,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:05,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:05,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:05,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:05,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:05,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:05,997 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 [2019-11-28 03:04:06,003 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 [2019-11-28 03:04:06,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:06,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:06,016 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 [2019-11-28 03:04:06,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:06,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:06,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:06,019 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 [2019-11-28 03:04:06,027 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 [2019-11-28 03:04:06,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:06,043 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 [2019-11-28 03:04:06,049 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 [2019-11-28 03:04:06,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:06,055 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 [2019-11-28 03:04:06,061 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 [2019-11-28 03:04:06,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:06,072 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:06,083 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 [2019-11-28 03:04:06,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:06,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:06,097 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 [2019-11-28 03:04:06,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:06,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:06,120 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 [2019-11-28 03:04:06,126 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 [2019-11-28 03:04:06,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:06,133 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 [2019-11-28 03:04:06,141 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 [2019-11-28 03:04:06,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,142 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2019-11-28 03:04:06,142 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2019-11-28 03:04:06,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,251 INFO L401 nArgumentSynthesizer]: We have 180 Motzkin's Theorem applications. [2019-11-28 03:04:06,251 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-11-28 03:04:06,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:06,491 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 [2019-11-28 03:04:06,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:06,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:06,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:06,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:06,501 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:06,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:06,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:06,578 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2019-11-28 03:04:06,578 INFO L444 ModelExtractionUtils]: 26 out of 55 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:06,582 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:06,584 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:04:06,585 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:06,585 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0.offset) = 2*ULTIMATE.start_cstrcspn_~s~0.offset + 1 Supporting invariants [] [2019-11-28 03:04:06,719 INFO L297 tatePredicateManager]: 25 out of 25 supporting invariants were superfluous and have been removed [2019-11-28 03:04:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:06,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:04:06,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:06,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:04:06,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:06,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:06,779 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:04:06,780 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-28 03:04:06,805 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 46 states and 58 transitions. Complement of second has 5 states. [2019-11-28 03:04:06,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:04:06,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-11-28 03:04:06,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 03:04:06,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:06,810 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:06,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:06,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:04:06,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:06,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:04:06,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:06,867 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:04:06,867 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-28 03:04:06,886 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 46 states and 58 transitions. Complement of second has 5 states. [2019-11-28 03:04:06,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:04:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-11-28 03:04:06,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 03:04:06,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:06,888 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:06,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:04:06,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:06,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:04:06,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:06,959 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:04:06,959 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-28 03:04:06,992 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 45 states and 60 transitions. Complement of second has 4 states. [2019-11-28 03:04:06,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:04:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-28 03:04:06,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 03:04:06,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:06,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2019-11-28 03:04:06,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:06,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-28 03:04:06,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:06,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2019-11-28 03:04:06,999 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:06,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2019-11-28 03:04:06,999 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:04:07,000 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:04:07,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:04:07,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:04:07,000 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:07,000 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:07,001 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:07,001 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:04:07,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:04:07,001 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:07,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:04:07,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:04:07 BoogieIcfgContainer [2019-11-28 03:04:07,009 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:04:07,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:04:07,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:04:07,010 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:04:07,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:52" (3/4) ... [2019-11-28 03:04:07,015 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:04:07,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:04:07,017 INFO L168 Benchmark]: Toolchain (without parser) took 16197.76 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 371.2 MB). Free memory was 961.7 MB in the beginning and 810.7 MB in the end (delta: 151.0 MB). Peak memory consumption was 522.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:07,017 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:07,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:07,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:07,019 INFO L168 Benchmark]: Boogie Preprocessor took 34.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:07,020 INFO L168 Benchmark]: RCFGBuilder took 426.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:07,021 INFO L168 Benchmark]: BuchiAutomizer took 14989.48 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 240.6 MB). Free memory was 1.1 GB in the beginning and 810.7 MB in the end (delta: 268.3 MB). Peak memory consumption was 508.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:07,021 INFO L168 Benchmark]: Witness Printer took 5.67 ms. Allocated memory is still 1.4 GB. Free memory is still 810.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:07,024 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 677.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 426.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14989.48 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 240.6 MB). Free memory was 1.1 GB in the beginning and 810.7 MB in the end (delta: 268.3 MB). Peak memory consumption was 508.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.67 ms. Allocated memory is still 1.4 GB. Free memory is still 810.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[sc1] + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function 2 * s + unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] and consists of 4 locations. One nondeterministic module has affine ranking function 2 * s + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 13.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 114 SDtfs, 111 SDslu, 85 SDs, 0 SdLazy, 129 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital383 mio100 ax100 hnf99 lsp91 ukn75 mio100 lsp39 div114 bol100 ite100 ukn100 eq177 hnf83 smp92 dnf826 smp24 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 346ms VariablesStem: 7 VariablesLoop: 4 DisjunctsStem: 8 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 180 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...