./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.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-recursive-malloc/rec_malloc_ex3.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 a96be28be4b50f026536d78db5ba85eeb0ae4413 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:04:32,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:04:32,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:04:32,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:04:32,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:04:32,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:04:32,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:04:32,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:04:32,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:04:32,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:04:32,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:04:32,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:04:32,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:04:32,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:04:32,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:04:32,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:04:32,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:04:32,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:04:32,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:04:32,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:04:32,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:04:32,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:04:32,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:04:32,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:04:32,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:04:32,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:04:32,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:04:32,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:04:32,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:04:32,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:04:32,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:04:32,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:04:32,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:04:32,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:04:32,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:04:32,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:04:32,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:04:32,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:04:32,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:04:32,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:04:32,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:04:32,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:04:32,723 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:04:32,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:04:32,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:04:32,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:04:32,726 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:04:32,726 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:04:32,726 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:04:32,727 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:04:32,727 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:04:32,727 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:04:32,728 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:04:32,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:04:32,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:04:32,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:04:32,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:04:32,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:04:32,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:04:32,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:04:32,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:04:32,731 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:04:32,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:04:32,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:04:32,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:04:32,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:04:32,733 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:04:32,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:04:32,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:04:32,733 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:04:32,734 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:04:32,735 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 -> a96be28be4b50f026536d78db5ba85eeb0ae4413 [2019-11-28 03:04:33,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:04:33,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:04:33,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:04:33,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:04:33,075 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:04:33,076 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2019-11-28 03:04:33,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41467bee6/081a0980e70044519989e5cd685aa152/FLAG390a99eee [2019-11-28 03:04:33,629 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:04:33,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex3.i [2019-11-28 03:04:33,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41467bee6/081a0980e70044519989e5cd685aa152/FLAG390a99eee [2019-11-28 03:04:34,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41467bee6/081a0980e70044519989e5cd685aa152 [2019-11-28 03:04:34,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:04:34,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:04:34,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:04:34,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:04:34,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:04:34,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5726caa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34, skipping insertion in model container [2019-11-28 03:04:34,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:04:34,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:04:34,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:04:34,280 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:04:34,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:04:34,312 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:04:34,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34 WrapperNode [2019-11-28 03:04:34,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:04:34,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:04:34,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:04:34,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:04:34,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:04:34,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:04:34,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:04:34,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:04:34,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (1/1) ... [2019-11-28 03:04:34,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:04:34,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:04:34,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:04:34,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:04:34,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (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 03:04:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:04:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-11-28 03:04:34,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-11-28 03:04:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 03:04:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:04:34,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:04:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:04:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:04:34,723 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:04:34,724 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 03:04:34,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:34 BoogieIcfgContainer [2019-11-28 03:04:34,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:04:34,726 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:04:34,726 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:04:34,730 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:04:34,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:34,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:04:34" (1/3) ... [2019-11-28 03:04:34,733 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@239e2949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:04:34, skipping insertion in model container [2019-11-28 03:04:34,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:34,733 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:34" (2/3) ... [2019-11-28 03:04:34,733 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@239e2949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:04:34, skipping insertion in model container [2019-11-28 03:04:34,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:04:34,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:34" (3/3) ... [2019-11-28 03:04:34,736 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex3.i [2019-11-28 03:04:34,801 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:04:34,801 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:04:34,801 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:04:34,802 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:04:34,802 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:04:34,802 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:04:34,802 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:04:34,802 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:04:34,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 03:04:34,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:04:34,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:34,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:34,862 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:04:34,862 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:34,862 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:04:34,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-11-28 03:04:34,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:04:34,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:34,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:34,866 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:04:34,866 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:34,875 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 5#L20-2true [2019-11-28 03:04:34,876 INFO L796 eck$LassoCheckResult]: Loop: 5#L20-2true assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 13#L23true call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 4#recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 9#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 15#recFINALtrue assume true; 12#recEXITtrue >#30#return; 11#L23-1true main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 5#L20-2true [2019-11-28 03:04:34,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:34,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2019-11-28 03:04:34,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:34,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620184528] [2019-11-28 03:04:34,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:35,000 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:35,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:35,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2039113776, now seen corresponding path program 1 times [2019-11-28 03:04:35,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:35,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186767135] [2019-11-28 03:04:35,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:35,115 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:35,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:35,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1009969970, now seen corresponding path program 1 times [2019-11-28 03:04:35,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:35,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649920960] [2019-11-28 03:04:35,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:35,217 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:35,649 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-11-28 03:04:35,758 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:35,760 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:35,760 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:35,760 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:35,760 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:35,760 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:35,761 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:35,761 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:35,761 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration1_Lasso [2019-11-28 03:04:35,761 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:35,762 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:35,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:35,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:35,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:35,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:35,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:35,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:35,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:36,138 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:36,144 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:36,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:36,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:36,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:36,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:36,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:36,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:36,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:36,185 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:36,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,206 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:36,207 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:36,219 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 03:04:36,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:36,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:36,250 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:04:36,254 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 03:04:36,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:36,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:36,278 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:04:36,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:36,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,304 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:04:36,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:36,332 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 03:04:36,332 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:04:36,358 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 03:04:36,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:36,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:36,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:36,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:36,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,414 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:36,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:36,419 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 03:04:36,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:36,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:36,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:36,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:36,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:36,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:36,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:36,440 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:04:36,446 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:36,455 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:04:36,456 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:36,465 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:36,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:04:36,466 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:36,467 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 03:04:36,474 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 03:04:36,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:36,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:04:36,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:36,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 03:04:36,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:36,666 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:36,667 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:36,674 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:36,676 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:36,676 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-28 03:04:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:36,732 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2019-11-28 03:04:36,734 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 7 states. [2019-11-28 03:04:36,877 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 7 states. Result 63 states and 77 transitions. Complement of second has 22 states. [2019-11-28 03:04:36,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 03:04:36,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 22 transitions. [2019-11-28 03:04:36,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 2 letters. Loop has 7 letters. [2019-11-28 03:04:36,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:36,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 9 letters. Loop has 7 letters. [2019-11-28 03:04:36,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:36,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 2 letters. Loop has 14 letters. [2019-11-28 03:04:36,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:36,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 77 transitions. [2019-11-28 03:04:36,896 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-28 03:04:36,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 35 states and 42 transitions. [2019-11-28 03:04:36,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-28 03:04:36,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2019-11-28 03:04:36,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 42 transitions. [2019-11-28 03:04:36,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:36,908 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2019-11-28 03:04:36,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 42 transitions. [2019-11-28 03:04:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2019-11-28 03:04:36,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-28 03:04:36,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-11-28 03:04:36,946 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-11-28 03:04:36,946 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-11-28 03:04:36,946 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:04:36,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 38 transitions. [2019-11-28 03:04:36,948 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-28 03:04:36,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:36,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:36,949 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:36,949 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:04:36,950 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 161#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 162#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 174#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 175#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 185#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 156#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 164#recENTRY [2019-11-28 03:04:36,950 INFO L796 eck$LassoCheckResult]: Loop: 164#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 154#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 155#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 164#recENTRY [2019-11-28 03:04:36,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:36,950 INFO L82 PathProgramCache]: Analyzing trace with hash 557607690, now seen corresponding path program 1 times [2019-11-28 03:04:36,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:36,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639205914] [2019-11-28 03:04:36,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:36,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:36,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:37,001 INFO L82 PathProgramCache]: Analyzing trace with hash 29942, now seen corresponding path program 1 times [2019-11-28 03:04:37,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:37,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372708399] [2019-11-28 03:04:37,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:37,029 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:37,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1242807987, now seen corresponding path program 2 times [2019-11-28 03:04:37,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:37,032 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376789302] [2019-11-28 03:04:37,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:37,112 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:37,530 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 03:04:37,806 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-11-28 03:04:37,843 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:37,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:37,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:37,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:37,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:37,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:37,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:37,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:37,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration2_Lasso [2019-11-28 03:04:37,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:37,844 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:37,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,885 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 03:04:37,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,900 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 03:04:37,902 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 03:04:37,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:37,905 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 03:04:38,236 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:38,236 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,252 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,261 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 03:04:38,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,274 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,296 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 03:04:38,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:38,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:38,316 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 03:04:38,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:38,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:38,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,384 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 03:04:38,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,399 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 03:04:38,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:38,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:38,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:38,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,449 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 03:04:38,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,459 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 03:04:38,461 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 03:04:38,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,476 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:04:38,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,491 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,494 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 03:04:38,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:38,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,524 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) [2019-11-28 03:04:38,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:38,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,555 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 03:04:38,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,572 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 03:04:38,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 03:04:38,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:38,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:38,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:38,595 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:38,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:38,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:38,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:38,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:38,659 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,661 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-28 03:04:38,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,664 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-28 03:04:38,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:38,669 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:38,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:38,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:38,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:38,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:38,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:38,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:38,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:38,718 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 03:04:38,718 INFO L444 ModelExtractionUtils]: 0 out of 10 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:38,724 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:38,728 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:04:38,729 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:38,729 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select old(#memory_int) rec_#in~p.base) rec_#in~p.offset)_1) = 2*v_rep(select (select old(#memory_int) rec_#in~p.base) rec_#in~p.offset)_1 + 1 Supporting invariants [-1*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_1 + 1*v_rep(select (select old(#memory_int) rec_#in~p.base) rec_#in~p.offset)_1 >= 0] [2019-11-28 03:04:38,739 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-28 03:04:38,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:04:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:38,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:04:38,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:38,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-28 03:04:38,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:38,877 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2019-11-28 03:04:38,877 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:38,883 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:38,883 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:38,883 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2019-11-28 03:04:38,910 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-28 03:04:38,911 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:38,928 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:38,928 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:38,928 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:23 [2019-11-28 03:04:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:38,951 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 03:04:38,951 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10 Second operand 4 states. [2019-11-28 03:04:39,085 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 38 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 47 states and 56 transitions. Complement of second has 17 states. [2019-11-28 03:04:39,087 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 03:04:39,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:04:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2019-11-28 03:04:39,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-28 03:04:39,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:39,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-28 03:04:39,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:39,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-28 03:04:39,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:39,091 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 56 transitions. [2019-11-28 03:04:39,093 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:04:39,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 50 transitions. [2019-11-28 03:04:39,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-28 03:04:39,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2019-11-28 03:04:39,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 50 transitions. [2019-11-28 03:04:39,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:39,096 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 50 transitions. [2019-11-28 03:04:39,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 50 transitions. [2019-11-28 03:04:39,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2019-11-28 03:04:39,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 03:04:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2019-11-28 03:04:39,102 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-11-28 03:04:39,102 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 46 transitions. [2019-11-28 03:04:39,102 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:04:39,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 46 transitions. [2019-11-28 03:04:39,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:04:39,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:39,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:39,105 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:39,105 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:39,106 INFO L794 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 319#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 320#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 338#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 348#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 347#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 318#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 323#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 324#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 352#recFINAL assume true; 331#recEXIT >#28#return; 332#L15-1 #res := #t~ret5;havoc #t~ret5; 346#recFINAL assume true; 341#recEXIT >#30#return; 327#L23-1 [2019-11-28 03:04:39,106 INFO L796 eck$LassoCheckResult]: Loop: 327#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 328#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 335#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 336#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 343#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 345#recFINAL assume true; 350#recEXIT >#30#return; 327#L23-1 [2019-11-28 03:04:39,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:39,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1969157627, now seen corresponding path program 1 times [2019-11-28 03:04:39,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:39,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157427248] [2019-11-28 03:04:39,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:39,152 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:39,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:39,154 INFO L82 PathProgramCache]: Analyzing trace with hash -523709736, now seen corresponding path program 2 times [2019-11-28 03:04:39,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:39,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346093502] [2019-11-28 03:04:39,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:39,194 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:39,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:39,198 INFO L82 PathProgramCache]: Analyzing trace with hash 931270558, now seen corresponding path program 1 times [2019-11-28 03:04:39,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:39,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547348894] [2019-11-28 03:04:39,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:39,252 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:39,590 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-11-28 03:04:39,929 WARN L192 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 03:04:40,245 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-11-28 03:04:40,326 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:40,326 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:40,326 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:40,326 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:40,326 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:40,326 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:40,326 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:40,327 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:40,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration3_Lasso [2019-11-28 03:04:40,327 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:40,327 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:40,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,526 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 03:04:40,531 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 03:04:40,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:40,879 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:40,879 INFO L489 LassoAnalysis]: Using template 'affine'. 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 03:04:40,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:40,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:40,894 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-28 03:04:40,894 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:04:40,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:40,907 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2019-11-28 03:04:40,908 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:04:40,931 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) [2019-11-28 03:04:40,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:40,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:40,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:40,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:40,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:40,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:40,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:40,955 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 03:04:40,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:40,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:40,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:40,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:40,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:40,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:40,968 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 03:04:40,972 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 03:04:40,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:40,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:40,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:40,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:40,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:40,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:40,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:40,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:40,996 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 03:04:40,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:40,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:40,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:40,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:41,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:41,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:41,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:41,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:41,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:41,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:41,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:41,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,031 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:41,042 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-28 03:04:41,042 INFO L444 ModelExtractionUtils]: 10 out of 16 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:41,047 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:41,050 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:04:41,050 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:41,050 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~ret9, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_#t~ret9 + 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 03:04:41,059 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 03:04:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:41,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:04:41,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:41,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:41,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 03:04:41,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:41,209 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:41,210 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:41,214 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:41,215 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:41,215 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-28 03:04:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:41,227 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2019-11-28 03:04:41,227 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11 Second operand 8 states. [2019-11-28 03:04:41,352 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 46 transitions. cyclomatic complexity: 11. Second operand 8 states. Result 130 states and 152 transitions. Complement of second has 21 states. [2019-11-28 03:04:41,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 03:04:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2019-11-28 03:04:41,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 7 letters. [2019-11-28 03:04:41,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:41,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-28 03:04:41,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:41,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 14 letters. Loop has 14 letters. [2019-11-28 03:04:41,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:41,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 152 transitions. [2019-11-28 03:04:41,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-28 03:04:41,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 90 states and 105 transitions. [2019-11-28 03:04:41,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2019-11-28 03:04:41,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2019-11-28 03:04:41,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 105 transitions. [2019-11-28 03:04:41,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:41,365 INFO L688 BuchiCegarLoop]: Abstraction has 90 states and 105 transitions. [2019-11-28 03:04:41,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 105 transitions. [2019-11-28 03:04:41,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2019-11-28 03:04:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-28 03:04:41,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2019-11-28 03:04:41,375 INFO L711 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2019-11-28 03:04:41,375 INFO L591 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2019-11-28 03:04:41,375 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:04:41,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2019-11-28 03:04:41,377 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-28 03:04:41,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:41,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:41,378 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:41,378 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:04:41,379 INFO L794 eck$LassoCheckResult]: Stem: 621#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 612#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 613#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 642#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 643#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 648#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 638#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 647#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 654#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 655#recFINAL assume true; 646#recEXIT >#28#return; 645#L15-1 #res := #t~ret5;havoc #t~ret5; 644#recFINAL assume true; 641#recEXIT >#30#return; 640#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 626#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 632#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 633#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 686#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 616#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 618#recENTRY [2019-11-28 03:04:41,379 INFO L796 eck$LassoCheckResult]: Loop: 618#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 619#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 615#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 618#recENTRY [2019-11-28 03:04:41,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:41,379 INFO L82 PathProgramCache]: Analyzing trace with hash -801242957, now seen corresponding path program 2 times [2019-11-28 03:04:41,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:41,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499803801] [2019-11-28 03:04:41,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:41,419 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:41,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:41,419 INFO L82 PathProgramCache]: Analyzing trace with hash 29942, now seen corresponding path program 2 times [2019-11-28 03:04:41,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:41,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444362070] [2019-11-28 03:04:41,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:41,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:41,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:41,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1599299332, now seen corresponding path program 3 times [2019-11-28 03:04:41,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:41,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256679834] [2019-11-28 03:04:41,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:41,467 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:41,814 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 03:04:42,523 WARN L192 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 116 [2019-11-28 03:04:42,637 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2019-11-28 03:04:43,091 WARN L192 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-11-28 03:04:43,177 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:43,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:43,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:43,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:43,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:43,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:43,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:43,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration4_Lasso [2019-11-28 03:04:43,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:43,178 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:43,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,362 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 03:04:43,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,369 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 03:04:43,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:43,379 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 03:04:43,716 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:43,716 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:43,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:43,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:43,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:43,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:43,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:43,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:43,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:43,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,752 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:43,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:43,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:43,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:43,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:43,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:43,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:43,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:43,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:43,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:43,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:43,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:43,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,858 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:43,866 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-28 03:04:43,866 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:04:43,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:43,873 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:04:43,874 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:43,874 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2) = 2*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2 + 1 Supporting invariants [] [2019-11-28 03:04:43,878 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 03:04:43,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:04:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:43,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:04:43,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:43,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:43,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 03:04:43,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:44,001 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-28 03:04:44,001 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:44,007 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:44,008 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:44,008 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-28 03:04:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:44,025 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:04:44,025 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-11-28 03:04:44,132 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 106 states and 124 transitions. Complement of second has 17 states. [2019-11-28 03:04:44,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:04:44,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2019-11-28 03:04:44,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-28 03:04:44,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:44,136 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:44,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:44,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:04:44,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:44,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:44,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 03:04:44,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:44,255 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-28 03:04:44,255 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:44,264 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:44,264 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:44,264 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-28 03:04:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:44,280 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:04:44,280 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-11-28 03:04:44,390 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 106 states and 124 transitions. Complement of second has 17 states. [2019-11-28 03:04:44,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:44,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:04:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2019-11-28 03:04:44,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-28 03:04:44,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:44,392 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:44,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:44,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:04:44,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:44,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:44,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-28 03:04:44,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:44,520 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2019-11-28 03:04:44,521 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:44,524 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:44,525 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:44,525 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:21 [2019-11-28 03:04:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:44,537 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:04:44,537 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand 5 states. [2019-11-28 03:04:44,647 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 154 states and 179 transitions. Complement of second has 19 states. [2019-11-28 03:04:44,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:04:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2019-11-28 03:04:44,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 3 letters. [2019-11-28 03:04:44,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:44,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 23 letters. Loop has 3 letters. [2019-11-28 03:04:44,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:44,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 20 letters. Loop has 6 letters. [2019-11-28 03:04:44,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:44,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 179 transitions. [2019-11-28 03:04:44,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:04:44,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 110 states and 135 transitions. [2019-11-28 03:04:44,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2019-11-28 03:04:44,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2019-11-28 03:04:44,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 135 transitions. [2019-11-28 03:04:44,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:44,661 INFO L688 BuchiCegarLoop]: Abstraction has 110 states and 135 transitions. [2019-11-28 03:04:44,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 135 transitions. [2019-11-28 03:04:44,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 74. [2019-11-28 03:04:44,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-28 03:04:44,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2019-11-28 03:04:44,671 INFO L711 BuchiCegarLoop]: Abstraction has 74 states and 87 transitions. [2019-11-28 03:04:44,671 INFO L591 BuchiCegarLoop]: Abstraction has 74 states and 87 transitions. [2019-11-28 03:04:44,671 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:04:44,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 87 transitions. [2019-11-28 03:04:44,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:04:44,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:44,674 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:44,675 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:44,675 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:44,675 INFO L794 eck$LassoCheckResult]: Stem: 1373#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1365#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 1366#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1381#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1384#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1389#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1385#recFINAL assume true; 1380#recEXIT >#30#return; 1376#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 1378#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1370#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1369#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1371#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 1364#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 1386#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1433#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1432#recFINAL assume true; 1430#recEXIT >#28#return; 1413#L15-1 #res := #t~ret5;havoc #t~ret5; 1408#recFINAL assume true; 1390#recEXIT >#30#return; 1374#L23-1 [2019-11-28 03:04:44,675 INFO L796 eck$LassoCheckResult]: Loop: 1374#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 1375#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 1410#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 1414#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1409#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 1411#recFINAL assume true; 1415#recEXIT >#30#return; 1374#L23-1 [2019-11-28 03:04:44,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:44,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1572162950, now seen corresponding path program 4 times [2019-11-28 03:04:44,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:44,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346500776] [2019-11-28 03:04:44,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:44,707 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:44,708 INFO L82 PathProgramCache]: Analyzing trace with hash -523709736, now seen corresponding path program 3 times [2019-11-28 03:04:44,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:44,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556400304] [2019-11-28 03:04:44,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:44,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:44,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:44,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1341076915, now seen corresponding path program 5 times [2019-11-28 03:04:44,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:44,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211725578] [2019-11-28 03:04:44,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:44,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:45,065 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-11-28 03:04:45,463 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 03:04:46,155 WARN L192 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 134 [2019-11-28 03:04:46,256 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:46,256 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:46,256 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:46,256 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:46,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:46,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:46,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:46,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:46,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration5_Lasso [2019-11-28 03:04:46,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:46,257 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:46,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:46,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:46,405 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-11-28 03:04:46,527 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 03:04:46,528 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 03:04:46,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:46,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:46,832 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 23 [2019-11-28 03:04:46,934 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:46,934 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:46,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:46,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:46,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:46,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:46,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:46,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:46,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:46,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:46,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:46,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:46,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:46,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:46,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:46,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:46,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:46,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:46,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:46,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:46,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:46,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:46,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:46,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:46,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:46,992 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:47,005 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-28 03:04:47,005 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:47,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:47,014 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:04:47,014 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:47,014 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [-1*ULTIMATE.start_main_#t~ret9 - 1 >= 0] [2019-11-28 03:04:47,026 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-11-28 03:04:47,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:47,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 03:04:47,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:47,151 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:47,151 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,160 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:47,161 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,172 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:47,173 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-28 03:04:47,173 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-11-28 03:04:47,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:47,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:47,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 03:04:47,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:47,297 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:47,297 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,301 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:47,302 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,302 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-28 03:04:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:47,333 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 6 loop predicates [2019-11-28 03:04:47,333 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-11-28 03:04:47,621 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 117 states and 139 transitions. Complement of second has 28 states. [2019-11-28 03:04:47,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-11-28 03:04:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 03:04:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2019-11-28 03:04:47,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-28 03:04:47,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:47,624 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:47,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 03:04:47,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:47,757 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:47,757 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,760 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:47,761 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,773 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:47,773 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-28 03:04:47,773 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-11-28 03:04:47,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:47,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:47,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 03:04:47,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:47,931 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:47,931 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,935 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:47,936 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:47,936 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-28 03:04:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:47,958 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 6 loop predicates [2019-11-28 03:04:47,958 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-11-28 03:04:48,240 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 118 states and 139 transitions. Complement of second has 28 states. [2019-11-28 03:04:48,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-11-28 03:04:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 03:04:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2019-11-28 03:04:48,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-28 03:04:48,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:48,243 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 03:04:48,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:48,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 03:04:48,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:48,356 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:48,357 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:48,360 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:48,360 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:48,372 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:48,372 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-28 03:04:48,373 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:19 [2019-11-28 03:04:48,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:48,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:48,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-28 03:04:48,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:48,518 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:48,518 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:48,522 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:48,522 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:48,522 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-28 03:04:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:04:48,537 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 6 loop predicates [2019-11-28 03:04:48,537 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18 Second operand 11 states. [2019-11-28 03:04:48,830 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 87 transitions. cyclomatic complexity: 18. Second operand 11 states. Result 143 states and 169 transitions. Complement of second has 35 states. [2019-11-28 03:04:48,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 5 stem states 5 non-accepting loop states 2 accepting loop states [2019-11-28 03:04:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 03:04:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 28 transitions. [2019-11-28 03:04:48,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 21 letters. Loop has 7 letters. [2019-11-28 03:04:48,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:48,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 28 letters. Loop has 7 letters. [2019-11-28 03:04:48,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:48,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 28 transitions. Stem has 21 letters. Loop has 14 letters. [2019-11-28 03:04:48,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:48,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 169 transitions. [2019-11-28 03:04:48,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:04:48,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 93 states and 108 transitions. [2019-11-28 03:04:48,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2019-11-28 03:04:48,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2019-11-28 03:04:48,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 108 transitions. [2019-11-28 03:04:48,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:04:48,843 INFO L688 BuchiCegarLoop]: Abstraction has 93 states and 108 transitions. [2019-11-28 03:04:48,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 108 transitions. [2019-11-28 03:04:48,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 79. [2019-11-28 03:04:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-28 03:04:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2019-11-28 03:04:48,850 INFO L711 BuchiCegarLoop]: Abstraction has 79 states and 92 transitions. [2019-11-28 03:04:48,850 INFO L591 BuchiCegarLoop]: Abstraction has 79 states and 92 transitions. [2019-11-28 03:04:48,851 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:04:48,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 92 transitions. [2019-11-28 03:04:48,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:04:48,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:04:48,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:04:48,853 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:48,853 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:04:48,853 INFO L794 eck$LassoCheckResult]: Stem: 2285#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2276#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~ret9, main_~op~0.base, main_~op~0.offset, main_~i~0;main_~i~0 := main_#t~nondet6;havoc main_#t~nondet6; 2277#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2274#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2284#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2273#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2275#recFINAL assume true; 2293#recEXIT >#30#return; 2289#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 2288#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2294#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2295#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2325#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 2322#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 2323#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2337#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2341#recFINAL assume true; 2321#recEXIT >#28#return; 2319#L15-1 #res := #t~ret5;havoc #t~ret5; 2317#recFINAL assume true; 2299#recEXIT >#30#return; 2300#L23-1 [2019-11-28 03:04:48,854 INFO L796 eck$LassoCheckResult]: Loop: 2300#L23-1 main_~i~0 := main_~i~0 + main_#t~ret9;havoc main_#t~ret9; 2306#L20-2 assume !!(main_~i~0 > 0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~nondet8; 2302#L23 call main_#t~ret9 := rec(main_~op~0.base, main_~op~0.offset);< 2304#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2313#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~mem3 := read~int(~p.base, ~p.offset, 4);#t~post4 := #t~mem3;call write~int(#t~post4 - 1, ~p.base, ~p.offset, 4);havoc #t~mem3;havoc #t~post4; 2310#L15 call #t~ret5 := rec(~p.base, ~p.offset);< 2311#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 2339#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);#res := ~pv~0; 2347#recFINAL assume true; 2309#recEXIT >#28#return; 2307#L15-1 #res := #t~ret5;havoc #t~ret5; 2305#recFINAL assume true; 2301#recEXIT >#30#return; 2300#L23-1 [2019-11-28 03:04:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:48,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1572162950, now seen corresponding path program 6 times [2019-11-28 03:04:48,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:48,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314371753] [2019-11-28 03:04:48,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:48,882 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:48,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:48,883 INFO L82 PathProgramCache]: Analyzing trace with hash 773083116, now seen corresponding path program 1 times [2019-11-28 03:04:48,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:48,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319986461] [2019-11-28 03:04:48,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:48,915 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:48,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:48,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1940004217, now seen corresponding path program 7 times [2019-11-28 03:04:48,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:04:48,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034019090] [2019-11-28 03:04:48,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:04:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:04:49,002 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:04:49,279 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 03:04:49,635 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2019-11-28 03:04:50,047 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-11-28 03:04:50,819 WARN L192 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 134 [2019-11-28 03:04:50,929 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-28 03:04:50,932 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:04:50,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:04:50,932 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:04:50,932 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:04:50,932 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:04:50,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:50,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:04:50,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:04:50,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex3.i_Iteration6_Lasso [2019-11-28 03:04:50,933 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:04:50,933 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:04:50,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:50,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:50,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:50,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:51,079 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-11-28 03:04:51,199 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-11-28 03:04:51,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:04:51,528 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 23 [2019-11-28 03:04:51,646 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:04:51,647 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:51,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:51,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:51,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:51,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:51,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:51,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:51,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:51,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:51,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:51,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:51,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:04:51,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:51,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:51,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:51,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:04:51,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:04:51,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:51,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:51,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:51,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:51,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:51,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:51,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:51,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:51,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:51,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:51,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:51,688 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-28 03:04:51,688 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:04:51,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:51,702 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2019-11-28 03:04:51,702 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:04:51,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:51,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:51,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:51,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:51,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:51,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:51,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:51,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:51,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:51,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:04:51,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:04:51,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:04:51,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:04:51,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:04:51,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:04:51,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:04:51,759 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:04:51,775 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-28 03:04:51,775 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:04:51,779 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:04:51,780 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:04:51,781 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:04:51,781 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~ret9, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_#t~ret9 + 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 03:04:51,789 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 03:04:51,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:04:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:51,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 03:04:51,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:51,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:04:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:04:51,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 03:04:51,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:04:51,915 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-11-28 03:04:51,916 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:04:51,923 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:04:51,924 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:04:51,924 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:9 [2019-11-28 03:04:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 03:04:51,947 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2019-11-28 03:04:51,947 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 92 transitions. cyclomatic complexity: 18 Second operand 9 states. [2019-11-28 03:04:52,047 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 92 transitions. cyclomatic complexity: 18. Second operand 9 states. Result 146 states and 171 transitions. Complement of second has 24 states. [2019-11-28 03:04:52,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2019-11-28 03:04:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 03:04:52,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 23 transitions. [2019-11-28 03:04:52,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 21 letters. Loop has 13 letters. [2019-11-28 03:04:52,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:52,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 34 letters. Loop has 13 letters. [2019-11-28 03:04:52,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:52,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 23 transitions. Stem has 21 letters. Loop has 26 letters. [2019-11-28 03:04:52,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:04:52,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 171 transitions. [2019-11-28 03:04:52,054 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:52,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 0 states and 0 transitions. [2019-11-28 03:04:52,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:04:52,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:04:52,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:04:52,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:04:52,055 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:52,055 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:52,055 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:04:52,055 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-28 03:04:52,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:04:52,055 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:04:52,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:04:52,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:04:52 BoogieIcfgContainer [2019-11-28 03:04:52,061 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:04:52,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:04:52,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:04:52,061 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:04:52,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:34" (3/4) ... [2019-11-28 03:04:52,064 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:04:52,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:04:52,065 INFO L168 Benchmark]: Toolchain (without parser) took 18040.95 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 394.8 MB). Free memory was 960.4 MB in the beginning and 947.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 407.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:52,066 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:52,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.72 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:52,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:52,067 INFO L168 Benchmark]: Boogie Preprocessor took 36.35 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 03:04:52,067 INFO L168 Benchmark]: RCFGBuilder took 283.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:52,068 INFO L168 Benchmark]: BuchiAutomizer took 17334.55 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 264.8 MB). Free memory was 1.1 GB in the beginning and 947.5 MB in the end (delta: 152.2 MB). Peak memory consumption was 416.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:04:52,068 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 1.4 GB. Free memory is still 947.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:04:52,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.72 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.35 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 283.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 17334.55 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 264.8 MB). Free memory was 1.1 GB in the beginning and 947.5 MB in the end (delta: 152.2 MB). Peak memory consumption was 416.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.43 ms. Allocated memory is still 1.4 GB. Free memory is still 947.5 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function i and consists of 9 locations. One deterministic module has affine ranking function 2 * \old(unknown-#memory_int-unknown)[p][p] + 1 and consists of 5 locations. One deterministic module has affine ranking function aux-rec(op)-aux + i and consists of 8 locations. One deterministic module has affine ranking function aux-rec(op)-aux + i and consists of 9 locations. One nondeterministic module has affine ranking function 2 * unknown-#memory_int-unknown[p][p] + 1 and consists of 6 locations. One nondeterministic module has affine ranking function i and consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.2s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 13.1s. Construction of modules took 0.5s. Büchi inclusion checks took 3.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 63 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 3. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/4 HoareTripleCheckerStatistics: 125 SDtfs, 143 SDslu, 151 SDs, 0 SdLazy, 408 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf100 lsp95 ukn59 mio100 lsp28 div100 bol100 ite100 ukn100 eq174 hnf90 smp97 dnf176 smp89 tf100 neg92 sie128 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 4 VariablesLoop: 5 DisjunctsStem: 4 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 28 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...