./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-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-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-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 30ab881e1a71a9d76a9921c34ce47cc9425d2331 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:00:04,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:00:04,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:00:04,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:00:04,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:00:04,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:00:04,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:00:04,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:00:04,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:00:04,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:00:04,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:00:04,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:00:04,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:00:04,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:00:04,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:00:04,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:00:04,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:00:04,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:00:04,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:00:04,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:00:04,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:00:04,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:00:04,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:00:04,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:00:04,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:00:04,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:00:04,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:00:04,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:00:04,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:00:04,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:00:04,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:00:04,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:00:04,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:00:04,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:00:04,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:00:04,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:00:04,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:00:04,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:00:04,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:00:04,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:00:04,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:00:04,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:00:04,211 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:00:04,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:00:04,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:00:04,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:00:04,214 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:00:04,214 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:00:04,214 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:00:04,215 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:00:04,215 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:00:04,215 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:00:04,215 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:00:04,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:00:04,216 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:00:04,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:00:04,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:00:04,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:00:04,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:00:04,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:00:04,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:00:04,218 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:00:04,218 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:00:04,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:00:04,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:00:04,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:00:04,219 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:00:04,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:00:04,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:00:04,220 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:00:04,221 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:00:04,222 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 -> 30ab881e1a71a9d76a9921c34ce47cc9425d2331 [2019-11-28 03:00:04,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:00:04,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:00:04,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:00:04,534 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:00:04,534 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:00:04,536 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i [2019-11-28 03:00:04,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adf919db/d22ce59e1af141de9dfb7b1aae8d83a0/FLAG3cfdb423e [2019-11-28 03:00:05,227 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:00:05,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i [2019-11-28 03:00:05,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adf919db/d22ce59e1af141de9dfb7b1aae8d83a0/FLAG3cfdb423e [2019-11-28 03:00:05,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adf919db/d22ce59e1af141de9dfb7b1aae8d83a0 [2019-11-28 03:00:05,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:00:05,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:00:05,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:00:05,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:00:05,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:00:05,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7b6a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05, skipping insertion in model container [2019-11-28 03:00:05,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:00:05,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:00:06,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:00:06,016 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:00:06,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:00:06,120 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:00:06,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06 WrapperNode [2019-11-28 03:00:06,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:00:06,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:00:06,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:00:06,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:00:06,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:00:06,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:00:06,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:00:06,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:00:06,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (1/1) ... [2019-11-28 03:00:06,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:00:06,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:00:06,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:00:06,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:00:06,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (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 03:00:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:00:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:00:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:00:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:00:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:00:06,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:00:06,467 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:00:06,468 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 03:00:06,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:06 BoogieIcfgContainer [2019-11-28 03:00:06,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:00:06,470 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:00:06,470 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:00:06,474 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:00:06,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:00:06,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:00:05" (1/3) ... [2019-11-28 03:00:06,476 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7532961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:00:06, skipping insertion in model container [2019-11-28 03:00:06,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:00:06,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:06" (2/3) ... [2019-11-28 03:00:06,477 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7532961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:00:06, skipping insertion in model container [2019-11-28 03:00:06,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:00:06,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:06" (3/3) ... [2019-11-28 03:00:06,479 INFO L371 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-2013TACAS-Fig3-alloca.i [2019-11-28 03:00:06,538 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:00:06,539 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:00:06,539 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:00:06,539 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:00:06,540 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:00:06,540 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:00:06,540 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:00:06,540 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:00:06,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-28 03:00:06,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:06,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:06,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:06,593 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:00:06,593 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:00:06,593 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:00:06,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-11-28 03:00:06,595 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:06,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:06,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:06,596 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:00:06,596 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:00:06,605 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 11#L551-2true [2019-11-28 03:00:06,606 INFO L796 eck$LassoCheckResult]: Loop: 11#L551-2true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 12#L550-1true assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6#L550-3true assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 7#L551true assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 11#L551-2true [2019-11-28 03:00:06,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:06,613 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 03:00:06,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:06,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486216473] [2019-11-28 03:00:06,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,759 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:06,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:06,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 1 times [2019-11-28 03:00:06,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:06,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486131718] [2019-11-28 03:00:06,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:06,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:06,800 INFO L82 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2019-11-28 03:00:06,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:06,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910018905] [2019-11-28 03:00:06,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,871 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:07,062 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-11-28 03:00:07,246 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-28 03:00:07,317 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:00:07,318 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:00:07,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:00:07,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:00:07,319 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:00:07,319 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:07,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:00:07,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:00:07,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration1_Lasso [2019-11-28 03:00:07,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:00:07,321 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:00:07,354 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 03:00:07,362 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 03:00:07,366 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 03:00:07,369 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 03:00:07,375 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 03:00:07,379 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 03:00:07,383 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 03:00:07,592 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-11-28 03:00:07,696 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 03:00:07,701 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 03:00:07,704 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 03:00:07,709 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 03:00:07,713 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 03:00:07,718 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 03:00:07,722 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 03:00:08,154 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:00:08,159 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:08,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:08,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:08,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:08,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:08,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:08,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:08,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:08,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:08,221 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:08,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,249 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:08,261 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,271 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,271 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 [2019-11-28 03:00:08,278 INFO L522 LassoAnalysis]: Proving 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 03:00:08,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:08,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:08,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:08,293 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:08,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Exception during sending of exit command (exit): Broken pipe 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 03:00:08,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:08,375 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:08,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:08,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,408 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:08,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:08,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:08,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:08,431 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:00:08,456 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-28 03:00:08,456 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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 03:00:08,479 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:00:08,479 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:00:08,479 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:00:08,480 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [] Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,526 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 03:00:08,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:00:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:08,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:00:08,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:08,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:00:08,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:08,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:00:08,764 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 03:00:08,781 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 03:00:08,782 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2019-11-28 03:00:08,875 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 40 states and 48 transitions. Complement of second has 10 states. [2019-11-28 03:00:08,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:00:08,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:00:08,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2019-11-28 03:00:08,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-28 03:00:08,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:08,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-28 03:00:08,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:08,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-28 03:00:08,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:08,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 48 transitions. [2019-11-28 03:00:08,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:08,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 16 states and 22 transitions. [2019-11-28 03:00:08,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-28 03:00:08,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 03:00:08,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2019-11-28 03:00:08,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:00:08,895 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-28 03:00:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2019-11-28 03:00:08,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2019-11-28 03:00:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 03:00:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2019-11-28 03:00:08,927 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-11-28 03:00:08,927 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-11-28 03:00:08,927 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:00:08,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2019-11-28 03:00:08,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:08,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:08,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:08,929 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:00:08,929 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:00:08,930 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 144#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 145#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 153#L550-1 assume !main_#t~short6; 146#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 147#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 151#L551-2 [2019-11-28 03:00:08,930 INFO L796 eck$LassoCheckResult]: Loop: 151#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 155#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 157#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 156#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 151#L551-2 [2019-11-28 03:00:08,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:08,931 INFO L82 PathProgramCache]: Analyzing trace with hash 889571373, now seen corresponding path program 1 times [2019-11-28 03:00:08,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:08,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664056727] [2019-11-28 03:00:08,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:09,005 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 03:00:09,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664056727] [2019-11-28 03:00:09,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:00:09,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:00:09,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440874287] [2019-11-28 03:00:09,013 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:00:09,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:09,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 2 times [2019-11-28 03:00:09,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:09,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120402710] [2019-11-28 03:00:09,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,069 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:09,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:00:09,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:00:09,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:00:09,209 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-28 03:00:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:00:09,223 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2019-11-28 03:00:09,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:00:09,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2019-11-28 03:00:09,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:09,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 17 transitions. [2019-11-28 03:00:09,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-28 03:00:09,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 03:00:09,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2019-11-28 03:00:09,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:00:09,227 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-28 03:00:09,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2019-11-28 03:00:09,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-28 03:00:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 03:00:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-11-28 03:00:09,229 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-28 03:00:09,230 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-11-28 03:00:09,230 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:00:09,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2019-11-28 03:00:09,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:09,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:09,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:09,232 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:00:09,232 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:00:09,232 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 181#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 182#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 191#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 184#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 185#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 188#L551-2 [2019-11-28 03:00:09,232 INFO L796 eck$LassoCheckResult]: Loop: 188#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 190#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 194#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 193#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 188#L551-2 [2019-11-28 03:00:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:09,233 INFO L82 PathProgramCache]: Analyzing trace with hash 889569451, now seen corresponding path program 1 times [2019-11-28 03:00:09,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:09,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66721907] [2019-11-28 03:00:09,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,271 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:09,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:09,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 3 times [2019-11-28 03:00:09,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:09,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737021281] [2019-11-28 03:00:09,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,329 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:09,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:09,330 INFO L82 PathProgramCache]: Analyzing trace with hash -980235887, now seen corresponding path program 1 times [2019-11-28 03:00:09,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:09,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899080576] [2019-11-28 03:00:09,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:09,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:09,473 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-11-28 03:00:09,768 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-11-28 03:00:09,848 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:00:09,848 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:00:09,848 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:00:09,848 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:00:09,848 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:00:09,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:09,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:00:09,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:00:09,849 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration3_Lasso [2019-11-28 03:00:09,849 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:00:09,849 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:00:09,853 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 03:00:10,001 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-11-28 03:00:10,078 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 03:00:10,080 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 03:00:10,083 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 03:00:10,086 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 03:00:10,088 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 03:00:10,090 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 03:00:10,093 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 03:00:10,096 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 03:00:10,099 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 03:00:10,102 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 03:00:10,105 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 03:00:10,107 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 03:00:10,109 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 03:00:10,444 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:00:10,444 INFO L489 LassoAnalysis]: Using template 'affine'. 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 03:00:10,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:10,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:10,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:10,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:10,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:10,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:10,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:10,493 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:10,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:10,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:10,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:10,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:10,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:10,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:10,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:10,516 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:10,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:10,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:10,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:10,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:10,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:10,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:10,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:10,540 INFO L522 LassoAnalysis]: Proving 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 03:00:10,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:10,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:10,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:10,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:10,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:10,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:10,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:10,569 INFO L522 LassoAnalysis]: Proving 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 03:00:10,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:10,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:10,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:10,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:10,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:10,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:10,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:10,595 INFO L522 LassoAnalysis]: Proving 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 03:00:10,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:10,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:10,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:10,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:10,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:10,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:10,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:10,620 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:00:10,631 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-28 03:00:10,632 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. 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 03:00:10,636 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:00:10,639 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:00:10,639 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:00:10,639 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 Supporting invariants [] [2019-11-28 03:00:10,675 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 03:00:10,677 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:00:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:10,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:00:10,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:10,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:00:10,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:10,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:00:10,772 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 03:00:10,772 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 03:00:10,772 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-28 03:00:10,804 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 22 states and 27 transitions. Complement of second has 7 states. [2019-11-28 03:00:10,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:00:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:00:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-28 03:00:10,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-28 03:00:10,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:10,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-28 03:00:10,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:10,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 8 letters. [2019-11-28 03:00:10,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:10,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2019-11-28 03:00:10,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:10,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 27 transitions. [2019-11-28 03:00:10,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-28 03:00:10,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-28 03:00:10,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2019-11-28 03:00:10,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:00:10,810 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-28 03:00:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2019-11-28 03:00:10,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-28 03:00:10,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 03:00:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-11-28 03:00:10,813 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-28 03:00:10,814 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-28 03:00:10,814 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:00:10,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2019-11-28 03:00:10,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:00:10,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:10,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:10,816 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2019-11-28 03:00:10,816 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:00:10,816 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 316#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 317#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 333#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 332#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 330#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 329#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 327#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 318#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 319#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 323#L551-2 [2019-11-28 03:00:10,816 INFO L796 eck$LassoCheckResult]: Loop: 323#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 325#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 328#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 331#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 323#L551-2 [2019-11-28 03:00:10,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:10,817 INFO L82 PathProgramCache]: Analyzing trace with hash -980235885, now seen corresponding path program 2 times [2019-11-28 03:00:10,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:10,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862900869] [2019-11-28 03:00:10,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:10,856 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:10,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:10,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 4 times [2019-11-28 03:00:10,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:10,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650516324] [2019-11-28 03:00:10,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:10,872 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:10,873 INFO L82 PathProgramCache]: Analyzing trace with hash -987685255, now seen corresponding path program 2 times [2019-11-28 03:00:10,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:10,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039914833] [2019-11-28 03:00:10,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:10,912 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:11,452 WARN L192 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 98 [2019-11-28 03:00:11,585 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-28 03:00:11,593 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:00:11,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:00:11,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:00:11,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:00:11,593 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:00:11,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:11,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:00:11,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:00:11,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration4_Lasso [2019-11-28 03:00:11,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:00:11,594 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:00:11,598 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 03:00:11,607 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 03:00:11,614 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 03:00:11,618 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 03:00:11,621 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 03:00:11,624 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 03:00:11,627 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 03:00:11,629 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 03:00:11,807 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-11-28 03:00:11,885 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 03:00:11,888 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 03:00:11,900 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 03:00:11,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:11,905 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 03:00:11,907 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 03:00:11,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:11,913 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 03:00:12,315 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:00:12,316 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:12,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:12,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:12,326 INFO L522 LassoAnalysis]: Proving 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 03:00:12,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,350 INFO L522 LassoAnalysis]: Proving 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 03:00:12,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:12,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:12,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:12,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:12,402 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:12,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:12,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,410 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:00:12,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,411 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 03:00:12,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:12,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,427 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:12,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:12,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:12,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,439 INFO L522 LassoAnalysis]: Proving 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 03:00:12,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,459 INFO L522 LassoAnalysis]: Proving 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 03:00:12,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 03:00:12,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,498 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 03:00:12,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,500 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,500 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,509 INFO L522 LassoAnalysis]: Proving 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) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,528 INFO L522 LassoAnalysis]: Proving 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 03:00:12,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:12,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:12,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:12,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:12,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:12,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:12,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:12,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:12,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:12,583 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:00:12,588 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-28 03:00:12,589 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. 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 03:00:12,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:00:12,596 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:00:12,597 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:00:12,597 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3 Supporting invariants [] [2019-11-28 03:00:12,626 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 03:00:12,628 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:00:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:12,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:00:12,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:12,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:00:12,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:12,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:00:12,702 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 03:00:12,703 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 03:00:12,703 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-28 03:00:12,737 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2019-11-28 03:00:12,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:00:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:00:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-28 03:00:12,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-28 03:00:12,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:12,739 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:00:12,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:12,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:00:12,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:12,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:00:12,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:12,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:00:12,807 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 03:00:12,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 03:00:12,808 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-28 03:00:12,837 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2019-11-28 03:00:12,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:00:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:00:12,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-28 03:00:12,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-28 03:00:12,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:12,839 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:00:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:12,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:00:12,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:12,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:00:12,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:12,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:00:12,915 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 03:00:12,916 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 3 loop predicates [2019-11-28 03:00:12,916 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-28 03:00:12,947 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 32 states and 40 transitions. Complement of second has 6 states. [2019-11-28 03:00:12,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:00:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:00:12,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-11-28 03:00:12,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-28 03:00:12,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:12,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-28 03:00:12,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:12,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 8 letters. [2019-11-28 03:00:12,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:12,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2019-11-28 03:00:12,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 03:00:12,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 32 transitions. [2019-11-28 03:00:12,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 03:00:12,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-28 03:00:12,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2019-11-28 03:00:12,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:00:12,958 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-11-28 03:00:12,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2019-11-28 03:00:12,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 10. [2019-11-28 03:00:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 03:00:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-28 03:00:12,960 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-28 03:00:12,960 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-28 03:00:12,960 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:00:12,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2019-11-28 03:00:12,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 03:00:12,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:12,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:12,961 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:00:12,962 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:00:12,962 INFO L794 eck$LassoCheckResult]: Stem: 642#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 640#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 641#L551-2 [2019-11-28 03:00:12,962 INFO L796 eck$LassoCheckResult]: Loop: 641#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 649#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 643#L550-3 assume !!main_#t~short6;havoc main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5; 644#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 641#L551-2 [2019-11-28 03:00:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:12,962 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-11-28 03:00:12,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:12,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003542001] [2019-11-28 03:00:12,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:12,972 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:12,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:12,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1142249, now seen corresponding path program 1 times [2019-11-28 03:00:12,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:12,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891203351] [2019-11-28 03:00:12,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:12,984 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:12,985 INFO L82 PathProgramCache]: Analyzing trace with hash 889569451, now seen corresponding path program 3 times [2019-11-28 03:00:12,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:12,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475556470] [2019-11-28 03:00:12,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:13,004 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:13,110 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-11-28 03:00:13,275 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:00:13,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:00:13,275 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:00:13,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:00:13,276 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:00:13,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:13,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:00:13,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:00:13,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration5_Lasso [2019-11-28 03:00:13,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:00:13,276 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:00:13,278 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 03:00:13,281 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 03:00:13,419 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-11-28 03:00:13,501 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 03:00:13,505 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 03:00:13,506 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 03:00:13,510 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 03:00:13,516 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 03:00:13,518 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 03:00:13,522 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 03:00:13,524 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 03:00:13,526 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 03:00:13,528 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 03:00:13,531 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 03:00:13,872 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:00:13,872 INFO L489 LassoAnalysis]: Using template 'affine'. 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 03:00:13,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:13,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:13,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:13,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:13,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:13,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:13,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:13,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:13,887 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:13,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:13,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:13,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:13,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:13,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:13,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:13,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:13,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:13,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:13,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:13,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:13,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:13,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:13,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:13,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:13,943 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:13,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:13,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:13,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:13,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:13,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:13,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:13,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:13,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:13,956 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:13,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:13,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:13,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:13,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:13,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:13,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:13,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:13,981 INFO L522 LassoAnalysis]: Proving 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 03:00:13,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 03:00:13,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:13,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:13,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:13,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:13,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:14,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:14,003 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:14,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:14,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:14,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:14,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:14,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:14,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:14,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:14,021 INFO L522 LassoAnalysis]: Proving 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) [2019-11-28 03:00:14,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:14,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:14,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:14,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:14,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:14,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:14,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:14,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:14,033 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:00:14,035 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-28 03:00:14,035 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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) [2019-11-28 03:00:14,040 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:00:14,041 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:00:14,041 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:00:14,041 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4 Supporting invariants [] Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:14,088 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2019-11-28 03:00:14,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:00:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:14,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 03:00:14,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:14,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:00:14,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:14,154 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:00:14,216 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 03:00:14,217 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 03:00:14,217 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 5 states. [2019-11-28 03:00:14,295 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand 5 states. Result 26 states and 33 transitions. Complement of second has 8 states. [2019-11-28 03:00:14,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:00:14,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:00:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-11-28 03:00:14,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-28 03:00:14,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:14,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-28 03:00:14,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:14,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-28 03:00:14,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:14,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2019-11-28 03:00:14,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:00:14,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2019-11-28 03:00:14,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:00:14,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:00:14,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:00:14,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:00:14,300 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:00:14,300 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:00:14,300 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:00:14,300 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:00:14,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:00:14,300 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:00:14,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:00:14,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:00:14 BoogieIcfgContainer [2019-11-28 03:00:14,307 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:00:14,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:00:14,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:00:14,308 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:00:14,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:06" (3/4) ... [2019-11-28 03:00:14,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:00:14,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:00:14,315 INFO L168 Benchmark]: Toolchain (without parser) took 8772.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.3 MB). Free memory was 955.0 MB in the beginning and 883.7 MB in the end (delta: 71.3 MB). Peak memory consumption was 390.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:14,315 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:00:14,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:14,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.25 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:14,317 INFO L168 Benchmark]: Boogie Preprocessor took 23.52 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. [2019-11-28 03:00:14,318 INFO L168 Benchmark]: RCFGBuilder took 274.94 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:14,319 INFO L168 Benchmark]: BuchiAutomizer took 7836.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.5 MB). Free memory was 1.1 GB in the beginning and 883.7 MB in the end (delta: 220.5 MB). Peak memory consumption was 393.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:14,319 INFO L168 Benchmark]: Witness Printer took 5.39 ms. Allocated memory is still 1.3 GB. Free memory is still 883.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:00:14,323 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 578.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.25 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.52 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 274.94 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7836.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.5 MB). Free memory was 1.1 GB in the beginning and 883.7 MB in the end (delta: 220.5 MB). Peak memory consumption was 393.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.39 ms. Allocated memory is still 1.3 GB. Free memory is still 883.7 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 6.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 50 SDtfs, 47 SDslu, 18 SDs, 0 SdLazy, 74 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital247 mio100 ax109 hnf100 lsp86 ukn61 mio100 lsp41 div100 bol100 ite100 ukn100 eq185 hnf88 smp97 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms 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...