./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-acceleration/array_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 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/loop-acceleration/array_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 6cf45fad85d859bd49993135d653eb18d378c433 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:25:17,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:25:17,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:25:17,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:25:17,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:25:17,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:25:17,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:25:17,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:25:17,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:25:17,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:25:17,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:25:17,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:25:17,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:25:17,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:25:17,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:25:17,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:25:17,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:25:17,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:25:17,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:25:17,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:25:17,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:25:17,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:25:17,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:25:17,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:25:17,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:25:17,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:25:17,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:25:17,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:25:17,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:25:17,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:25:17,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:25:17,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:25:17,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:25:17,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:25:17,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:25:17,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:25:17,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:25:17,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:25:17,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:25:17,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:25:17,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:25:17,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:25:17,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:25:17,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:25:17,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:25:17,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:25:17,213 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:25:17,214 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:25:17,214 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:25:17,214 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:25:17,214 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:25:17,215 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:25:17,216 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:25:17,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:25:17,217 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:25:17,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:25:17,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:25:17,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:25:17,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:25:17,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:25:17,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:25:17,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:25:17,219 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:25:17,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:25:17,219 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:25:17,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:25:17,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:25:17,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:25:17,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:25:17,220 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:25:17,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:25:17,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:25:17,221 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:25:17,224 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:25:17,224 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cf45fad85d859bd49993135d653eb18d378c433 [2019-11-19 22:25:17,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:25:17,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:25:17,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:25:17,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:25:17,531 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:25:17,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/array_2-2.i [2019-11-19 22:25:17,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774ccec83/4de2ccd44431427ba3b543f818edea6a/FLAG6bc92a0cc [2019-11-19 22:25:18,082 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:25:18,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_2-2.i [2019-11-19 22:25:18,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774ccec83/4de2ccd44431427ba3b543f818edea6a/FLAG6bc92a0cc [2019-11-19 22:25:18,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774ccec83/4de2ccd44431427ba3b543f818edea6a [2019-11-19 22:25:18,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:25:18,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:25:18,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:25:18,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:25:18,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:25:18,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c8ff72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18, skipping insertion in model container [2019-11-19 22:25:18,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,488 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:25:18,505 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:25:18,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:25:18,695 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:25:18,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:25:18,729 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:25:18,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18 WrapperNode [2019-11-19 22:25:18,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:25:18,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:25:18,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:25:18,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:25:18,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:25:18,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:25:18,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:25:18,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:25:18,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (1/1) ... [2019-11-19 22:25:18,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:25:18,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:25:18,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:25:18,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:25:18,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (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 [2019-11-19 22:25:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:25:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:25:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:25:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:25:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:25:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:25:19,118 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:25:19,118 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 22:25:19,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:25:19 BoogieIcfgContainer [2019-11-19 22:25:19,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:25:19,120 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:25:19,120 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:25:19,124 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:25:19,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:25:19,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:25:18" (1/3) ... [2019-11-19 22:25:19,126 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f0ddd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:25:19, skipping insertion in model container [2019-11-19 22:25:19,126 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:25:19,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:25:18" (2/3) ... [2019-11-19 22:25:19,127 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f0ddd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:25:19, skipping insertion in model container [2019-11-19 22:25:19,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:25:19,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:25:19" (3/3) ... [2019-11-19 22:25:19,129 INFO L371 chiAutomizerObserver]: Analyzing ICFG array_2-2.i [2019-11-19 22:25:19,185 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:25:19,185 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:25:19,185 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:25:19,185 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:25:19,185 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:25:19,186 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:25:19,186 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:25:19,186 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:25:19,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-19 22:25:19,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:25:19,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:25:19,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:25:19,264 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:25:19,264 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:25:19,264 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:25:19,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-19 22:25:19,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:25:19,266 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:25:19,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:25:19,266 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 22:25:19,267 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:25:19,276 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~mem1, main_#t~post0, main_#t~mem2, main_#t~mem3, main_~#A~0.base, main_~#A~0.offset, main_~#B~0.base, main_~#B~0.offset, main_~i~0, main_~tmp~0;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(8192);call main_~#B~0.base, main_~#B~0.offset := #Ultimate.allocOnStack(8192);havoc main_~i~0;havoc main_~tmp~0;main_~i~0 := 0; 4#L13-3true [2019-11-19 22:25:19,276 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true assume !!(main_~i~0 < 2048);call main_#t~mem1 := read~int(main_~#A~0.base, main_~#A~0.offset + 4 * main_~i~0, 4);main_~tmp~0 := main_#t~mem1;havoc main_#t~mem1;call write~int(main_~tmp~0, main_~#B~0.base, main_~#B~0.offset + 4 * main_~i~0, 4); 6#L13-2true main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0; 4#L13-3true [2019-11-19 22:25:19,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:19,284 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-19 22:25:19,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:19,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898487457] [2019-11-19 22:25:19,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:19,422 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:19,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2019-11-19 22:25:19,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:19,425 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361936916] [2019-11-19 22:25:19,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:19,454 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:19,462 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2019-11-19 22:25:19,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:25:19,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200466085] [2019-11-19 22:25:19,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:25:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:25:19,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:25:19,801 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-11-19 22:25:19,862 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:25:19,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:25:19,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:25:19,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:25:19,864 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:25:19,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:19,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:25:19,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:25:19,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-2.i_Iteration1_Lasso [2019-11-19 22:25:19,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:25:19,865 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:25:19,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:19,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:19,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:19,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:19,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:19,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:19,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:20,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:25:20,353 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:25:20,359 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) [2019-11-19 22:25:20,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:20,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:20,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:20,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:20,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:20,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:20,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:20,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:20,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:20,448 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:20,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:20,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:20,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:20,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:20,472 INFO L522 LassoAnalysis]: Proving 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 [2019-11-19 22:25:20,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:20,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:20,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:20,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:25:20,495 INFO L522 LassoAnalysis]: Proving 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) [2019-11-19 22:25:20,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:20,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:20,527 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:20,535 INFO L522 LassoAnalysis]: Proving 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) [2019-11-19 22:25:20,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:20,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:20,554 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:20,560 INFO L522 LassoAnalysis]: Proving 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) [2019-11-19 22:25:20,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:20,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:20,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:20,582 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 [2019-11-19 22:25:20,586 INFO L522 LassoAnalysis]: Proving 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 [2019-11-19 22:25:20,605 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 [2019-11-19 22:25:20,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:20,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:20,627 INFO L522 LassoAnalysis]: Proving 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 [2019-11-19 22:25:20,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:25:20,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:20,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:20,658 INFO L522 LassoAnalysis]: Proving 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) [2019-11-19 22:25:20,676 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 [2019-11-19 22:25:20,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:25:20,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:25:20,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:20,686 INFO L522 LassoAnalysis]: Proving 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) [2019-11-19 22:25:20,696 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 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:20,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:25:20,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:25:20,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:25:20,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:25:20,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:25:20,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:25:20,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:25:20,788 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-19 22:25:20,789 INFO L444 ModelExtractionUtils]: 0 out of 19 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:25:20,796 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:25:20,799 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:25:20,799 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:25:20,800 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1) = -8*ULTIMATE.start_main_~i~0 + 4095*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 Supporting invariants [] [2019-11-19 22:25:20,824 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-11-19 22:25:20,835 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 22:25:20,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:25:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:20,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:25:20,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:25:20,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:25:20,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:25:20,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:25:20,941 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 [2019-11-19 22:25:20,943 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-19 22:25:21,010 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 24 states and 30 transitions. Complement of second has 8 states. [2019-11-19 22:25:21,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:25:21,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:25:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-19 22:25:21,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-19 22:25:21,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:21,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-19 22:25:21,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:21,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-19 22:25:21,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:25:21,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2019-11-19 22:25:21,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:25:21,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-11-19 22:25:21,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 22:25:21,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 22:25:21,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 22:25:21,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:25:21,028 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:25:21,028 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:25:21,028 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:25:21,029 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:25:21,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:25:21,029 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:25:21,029 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 22:25:21,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:25:21 BoogieIcfgContainer [2019-11-19 22:25:21,036 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:25:21,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:25:21,037 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:25:21,037 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:25:21,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:25:19" (3/4) ... [2019-11-19 22:25:21,042 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:25:21,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:25:21,045 INFO L168 Benchmark]: Toolchain (without parser) took 2572.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 922.3 MB in the end (delta: 38.0 MB). Peak memory consumption was 180.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:21,045 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-19 22:25:21,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:21,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:21,049 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:21,050 INFO L168 Benchmark]: RCFGBuilder took 271.25 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:21,051 INFO L168 Benchmark]: BuchiAutomizer took 1916.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 190.1 MB). Peak memory consumption was 190.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:25:21,051 INFO L168 Benchmark]: Witness Printer took 5.62 ms. Allocated memory is still 1.2 GB. Free memory is still 922.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:25:21,056 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 258.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.99 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 271.25 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1916.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.3 MB in the end (delta: 190.1 MB). Peak memory consumption was 190.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.62 ms. Allocated memory is still 1.2 GB. Free memory is still 922.3 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -8 * i + 4095 * unknown-#length-unknown[A] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital144 mio100 ax100 hnf100 lsp95 ukn62 mio100 lsp68 div100 bol100 ite100 ukn100 eq164 hnf76 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...