./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f932c1059c6a140c081a3f9115dadbff28d03ec1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:00:03,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:00:03,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:00:03,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:00:03,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:00:03,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:00:03,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:00:03,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:00:03,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:00:03,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:00:03,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:00:03,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:00:03,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:00:03,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:00:03,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:00:03,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:00:03,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:00:03,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:00:03,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:00:03,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:00:03,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:00:03,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:00:03,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:00:03,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:00:03,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:00:03,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:00:03,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:00:03,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:00:03,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:00:03,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:00:03,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:00:03,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:00:03,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:00:03,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:00:03,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:00:03,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:00:03,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:00:03,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:00:03,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:00:03,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:00:03,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:00:03,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:00:03,712 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:00:03,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:00:03,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:00:03,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:00:03,716 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:00:03,716 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:00:03,717 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:00:03,717 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:00:03,717 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:00:03,717 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:00:03,719 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:00:03,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:00:03,719 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:00:03,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:00:03,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:00:03,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:00:03,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:00:03,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:00:03,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:00:03,721 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:00:03,721 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:00:03,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:00:03,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:00:03,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:00:03,722 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:00:03,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:00:03,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:00:03,722 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:00:03,723 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:00:03,724 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 -> f932c1059c6a140c081a3f9115dadbff28d03ec1 [2019-11-28 03:00:04,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:00:04,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:00:04,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:00:04,111 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:00:04,112 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:00:04,113 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2019-11-28 03:00:04,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098ba3559/8647e3049b1c46eeba419be7e9f0a4da/FLAGc1df0d787 [2019-11-28 03:00:04,718 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:00:04,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2019-11-28 03:00:04,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098ba3559/8647e3049b1c46eeba419be7e9f0a4da/FLAGc1df0d787 [2019-11-28 03:00:05,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098ba3559/8647e3049b1c46eeba419be7e9f0a4da [2019-11-28 03:00:05,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:00:05,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:00:05,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:00:05,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:00:05,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:00:05,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672d8e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05, skipping insertion in model container [2019-11-28 03:00:05,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:00:05,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:00:05,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:00:05,586 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:00:05,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:00:05,719 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:00:05,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05 WrapperNode [2019-11-28 03:00:05,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:00:05,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:00:05,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:00:05,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:00:05,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:00:05,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:00:05,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:00:05,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:00:05,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... [2019-11-28 03:00:05,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:00:05,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:00:05,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:00:05,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:00:05,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:00:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:00:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:00:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:00:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:00:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:00:06,120 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:00:06,120 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 03:00:06,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:06 BoogieIcfgContainer [2019-11-28 03:00:06,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:00:06,122 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:00:06,123 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:00:06,127 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:00:06,128 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:00:06,128 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:00:05" (1/3) ... [2019-11-28 03:00:06,129 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14a6716d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:00:06, skipping insertion in model container [2019-11-28 03:00:06,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:00:06,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:00:05" (2/3) ... [2019-11-28 03:00:06,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14a6716d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:00:06, skipping insertion in model container [2019-11-28 03:00:06,130 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:00:06,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:06" (3/3) ... [2019-11-28 03:00:06,132 INFO L371 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2019-11-28 03:00:06,177 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:00:06,177 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:00:06,177 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:00:06,177 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:00:06,177 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:00:06,178 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:00:06,178 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:00:06,178 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:00:06,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 03:00:06,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:00:06,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:06,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:06,221 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:00:06,221 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:00:06,221 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:00:06,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-28 03:00:06,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 03:00:06,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:00:06,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:00:06,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:00:06,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:00:06,231 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(1, main_~y~0.base, main_~y~0.offset, 4); 5#L550-3true [2019-11-28 03:00:06,232 INFO L796 eck$LassoCheckResult]: Loop: 5#L550-3true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 9#L550-1true assume !!(main_#t~mem4 > 0);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);call main_#t~mem6 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem5 - main_#t~mem6, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem5;havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(1 + main_#t~mem7, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem7; 5#L550-3true [2019-11-28 03:00:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 03:00:06,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:06,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331174801] [2019-11-28 03:00:06,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,380 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:06,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:06,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2019-11-28 03:00:06,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:06,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529974439] [2019-11-28 03:00:06,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:06,429 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-28 03:00:06,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:00:06,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105093781] [2019-11-28 03:00:06,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:00:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:00:06,494 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:00:06,604 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-28 03:00:06,922 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-11-28 03:00:07,015 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:00:07,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:00:07,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:00:07,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:00:07,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:00:07,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:07,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:00:07,018 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:00:07,018 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i_Iteration1_Lasso [2019-11-28 03:00:07,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:00:07,019 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:00:07,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,277 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2019-11-28 03:00:07,374 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 03:00:07,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:00:07,805 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:00:07,813 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 03:00:07,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:07,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:07,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:07,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:07,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:07,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:07,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:07,835 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 03:00:07,838 INFO L522 LassoAnalysis]: Proving 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 03:00:07,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:07,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:07,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:07,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:07,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:07,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:07,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:07,858 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 03:00:07,860 INFO L522 LassoAnalysis]: Proving 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 03:00:07,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:07,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:07,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:07,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:07,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:07,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:07,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:07,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:07,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:07,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:07,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:07,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:07,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:07,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:07,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:07,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:07,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:07,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:07,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:07,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:00:07,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:07,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:07,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:07,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:00:07,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:00:07,936 INFO L522 LassoAnalysis]: Proving 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 03:00:07,954 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:07,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:07,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:07,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:07,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:07,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:07,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:07,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:07,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:07,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:07,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:07,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:07,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:08,012 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:08,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:08,046 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:08,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:08,078 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:08,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:00:08,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:08,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:00:08,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:00:08,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:00:08,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:00:08,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:00:08,145 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:00:08,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,154 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:00:08,226 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-28 03:00:08,227 INFO L444 ModelExtractionUtils]: 3 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:00:08,269 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:00:08,295 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:00:08,295 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:00:08,296 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1 - 1 >= 0] [2019-11-28 03:00:08,352 INFO L297 tatePredicateManager]: 10 out of 12 supporting invariants were superfluous and have been removed [2019-11-28 03:00:08,364 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 03:00:08,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:00:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:08,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 03:00:08,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:00:08,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:00:08,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:00:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:00:08,494 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-28 03:00:08,496 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-28 03:00:08,574 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 18 states and 20 transitions. Complement of second has 7 states. [2019-11-28 03:00:08,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:00:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:00:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2019-11-28 03:00:08,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-28 03:00:08,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:08,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 03:00:08,580 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:08,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-28 03:00:08,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:00:08,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2019-11-28 03:00:08,584 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:00:08,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-11-28 03:00:08,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:00:08,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:00:08,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:00:08,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:00:08,590 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:00:08,590 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:00:08,590 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:00:08,590 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:00:08,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:00:08,591 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:00:08,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:00:08,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:00:08 BoogieIcfgContainer [2019-11-28 03:00:08,598 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:00:08,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:00:08,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:00:08,599 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:00:08,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:00:06" (3/4) ... [2019-11-28 03:00:08,611 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:00:08,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:00:08,616 INFO L168 Benchmark]: Toolchain (without parser) took 3585.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 961.7 MB in the beginning and 820.8 MB in the end (delta: 140.9 MB). Peak memory consumption was 273.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:08,617 INFO L168 Benchmark]: CDTParser took 0.24 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 03:00:08,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:08,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:00:08,621 INFO L168 Benchmark]: Boogie Preprocessor took 25.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:08,625 INFO L168 Benchmark]: RCFGBuilder took 316.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:08,631 INFO L168 Benchmark]: BuchiAutomizer took 2475.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.8 MB in the end (delta: 267.8 MB). Peak memory consumption was 267.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:00:08,632 INFO L168 Benchmark]: Witness Printer took 13.42 ms. Allocated memory is still 1.2 GB. Free memory is still 820.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:00:08,642 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 690.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 316.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2475.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 820.8 MB in the end (delta: 267.8 MB). Peak memory consumption was 267.8 MB. Max. memory is 11.5 GB. * Witness Printer took 13.42 ms. Allocated memory is still 1.2 GB. Free memory is still 820.8 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 6 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital207 mio100 ax108 hnf100 lsp87 ukn56 mio100 lsp40 div100 bol100 ite100 ukn100 eq188 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...