./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-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 e9d8db831e66fcf4f47c300fcbd3a74f1185238a 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:15:02,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:15:02,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:15:02,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:15:02,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:15:02,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:15:02,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:15:02,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:15:02,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:15:02,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:15:02,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:15:02,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:15:02,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:15:02,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:15:02,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:15:02,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:15:02,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:15:02,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:15:02,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:15:02,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:15:02,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:15:02,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:15:02,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:15:02,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:15:02,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:15:02,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:15:02,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:15:02,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:15:02,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:15:02,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:15:02,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:15:02,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:15:02,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:15:02,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:15:02,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:15:02,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:15:02,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:15:02,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:15:02,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:15:02,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:15:02,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:15:02,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:15:02,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:15:02,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:15:02,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:15:02,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:15:02,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:15:02,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:15:02,720 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:15:02,720 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:15:02,721 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:15:02,721 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:15:02,721 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:15:02,722 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:15:02,722 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:15:02,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:15:02,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:15:02,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:15:02,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:15:02,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:15:02,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:15:02,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:15:02,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:15:02,723 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:15:02,723 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:15:02,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:15:02,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:15:02,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:15:02,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:15:02,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:15:02,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:15:02,725 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:15:02,725 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9d8db831e66fcf4f47c300fcbd3a74f1185238a [2021-08-27 14:15:03,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:15:03,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:15:03,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:15:03,131 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:15:03,133 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:15:03,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2021-08-27 14:15:03,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d39bfb50/6c3654cec2f548a281a6e7c9df03022f/FLAGbde4cc11f [2021-08-27 14:15:03,677 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:15:03,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2021-08-27 14:15:03,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d39bfb50/6c3654cec2f548a281a6e7c9df03022f/FLAGbde4cc11f [2021-08-27 14:15:04,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d39bfb50/6c3654cec2f548a281a6e7c9df03022f [2021-08-27 14:15:04,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:15:04,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:15:04,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:15:04,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:15:04,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:15:04,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d8cdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04, skipping insertion in model container [2021-08-27 14:15:04,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:15:04,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:15:04,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:15:04,648 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:15:04,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:15:04,726 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:15:04,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04 WrapperNode [2021-08-27 14:15:04,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:15:04,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:15:04,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:15:04,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:15:04,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:15:04,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:15:04,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:15:04,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:15:04,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:15:04,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:15:04,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:15:04,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:15:04,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (1/1) ... [2021-08-27 14:15:04,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:04,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:04,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:04,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 14:15:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:15:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:15:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 14:15:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:15:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:15:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:15:05,115 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:15:05,115 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 14:15:05,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:15:05 BoogieIcfgContainer [2021-08-27 14:15:05,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:15:05,117 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:15:05,117 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:15:05,119 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:15:05,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:15:05,119 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:15:04" (1/3) ... [2021-08-27 14:15:05,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d67abe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:15:05, skipping insertion in model container [2021-08-27 14:15:05,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:15:05,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:15:04" (2/3) ... [2021-08-27 14:15:05,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d67abe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:15:05, skipping insertion in model container [2021-08-27 14:15:05,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:15:05,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:15:05" (3/3) ... [2021-08-27 14:15:05,121 INFO L389 chiAutomizerObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2021-08-27 14:15:05,189 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:15:05,189 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:15:05,190 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:15:05,190 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:15:05,190 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:15:05,190 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:15:05,190 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:15:05,190 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:15:05,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:05,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:05,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:15:05,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:15:05,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:15:05,245 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:15:05,245 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:15:05,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:05,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:05,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:15:05,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:15:05,248 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:15:05,248 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:15:05,252 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~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_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 9#L558-2true [2021-08-27 14:15:05,253 INFO L793 eck$LassoCheckResult]: Loop: 9#L558-2true call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 12#L552-1true assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4#L553true assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 8#L553-2true call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 7#L558true assume 0 != main_#t~mem10;havoc main_#t~mem10;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 9#L558-2true [2021-08-27 14:15:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:05,261 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 14:15:05,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:05,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795602818] [2021-08-27 14:15:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:05,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,350 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:05,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:05,391 INFO L82 PathProgramCache]: Analyzing trace with hash 35468238, now seen corresponding path program 1 times [2021-08-27 14:15:05,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:05,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519447602] [2021-08-27 14:15:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:05,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,432 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:05,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:05,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907724, now seen corresponding path program 1 times [2021-08-27 14:15:05,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:05,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812332742] [2021-08-27 14:15:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:05,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:15:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:15:05,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:15:05,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812332742] [2021-08-27 14:15:05,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812332742] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:15:05,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:15:05,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 14:15:05,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699797790] [2021-08-27 14:15:05,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:15:05,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 14:15:05,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 14:15:05,819 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:15:05,860 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-08-27 14:15:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 14:15:05,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2021-08-27 14:15:05,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:05,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2021-08-27 14:15:05,866 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-08-27 14:15:05,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 14:15:05,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2021-08-27 14:15:05,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:15:05,867 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-08-27 14:15:05,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2021-08-27 14:15:05,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-27 14:15:05,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-08-27 14:15:05,883 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-08-27 14:15:05,883 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-08-27 14:15:05,883 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:15:05,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-08-27 14:15:05,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:05,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:15:05,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:15:05,885 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:15:05,885 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:15:05,885 INFO L791 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 39#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~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_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 41#L558-2 [2021-08-27 14:15:05,885 INFO L793 eck$LassoCheckResult]: Loop: 41#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 42#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 36#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 37#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 40#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 41#L558-2 [2021-08-27 14:15:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:05,886 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-08-27 14:15:05,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:05,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38669507] [2021-08-27 14:15:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:05,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,909 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:05,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:05,920 INFO L82 PathProgramCache]: Analyzing trace with hash 35468240, now seen corresponding path program 1 times [2021-08-27 14:15:05,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:05,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552531481] [2021-08-27 14:15:05,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:05,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,929 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:05,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:05,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907726, now seen corresponding path program 1 times [2021-08-27 14:15:05,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:05,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120872708] [2021-08-27 14:15:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:05,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,957 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:05,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:06,441 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:15:06,442 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:15:06,442 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:15:06,442 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:15:06,442 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:15:06,442 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:06,443 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:15:06,443 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:15:06,443 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration2_Lasso [2021-08-27 14:15:06,443 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:15:06,443 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:15:06,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:06,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:07,038 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:15:07,041 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:15:07,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,043 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:15:07,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:15:07,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:15:07,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 14:15:07,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 14:15:07,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:15:07,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:15:07,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:15:07,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-27 14:15:07,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 14:15:07,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:15:07,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:15:07,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:15:07,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 14:15:07,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:15:07,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:15:07,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:15:07,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,226 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:15:07,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:15:07,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:15:07,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 14:15:07,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 14:15:07,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,314 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 14:15:07,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 14:15:07,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 14:15:07,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,515 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 14:15:07,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,527 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,527 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 14:15:07,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,602 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,603 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 14:15:07,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-08-27 14:15:07,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,659 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 14:15:07,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:07,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,698 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 14:15:07,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:07,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:07,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:07,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:07,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:07,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:07,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:07,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:15:07,731 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-27 14:15:07,731 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-08-27 14:15:07,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:07,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:07,733 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:07,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 14:15:07,735 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:15:07,756 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:15:07,756 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:15:07,757 INFO L515 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 + 255 Supporting invariants [] [2021-08-27 14:15:07,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:07,793 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-08-27 14:15:07,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:15:07,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:15:07,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:15:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:15:07,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 14:15:07,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:15:07,916 INFO L388 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 34 treesize of output 18 [2021-08-27 14:15:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:15:07,978 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-08-27 14:15:07,979 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:07,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:08,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 21 transitions. Complement of second has 9 states. [2021-08-27 14:15:08,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 14:15:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2021-08-27 14:15:08,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2021-08-27 14:15:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:15:08,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2021-08-27 14:15:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:15:08,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2021-08-27 14:15:08,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:15:08,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-08-27 14:15:08,024 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:08,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2021-08-27 14:15:08,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-08-27 14:15:08,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-08-27 14:15:08,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-08-27 14:15:08,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:15:08,025 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-08-27 14:15:08,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-08-27 14:15:08,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-08-27 14:15:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-08-27 14:15:08,027 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-08-27 14:15:08,027 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-08-27 14:15:08,027 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:15:08,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2021-08-27 14:15:08,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:08,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:15:08,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:15:08,028 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 14:15:08,028 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:15:08,028 INFO L791 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 160#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~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_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 169#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 167#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 155#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 156#L553-2 [2021-08-27 14:15:08,028 INFO L793 eck$LassoCheckResult]: Loop: 156#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 161#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 162#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 170#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 171#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 156#L553-2 [2021-08-27 14:15:08,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-08-27 14:15:08,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:08,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794169289] [2021-08-27 14:15:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:08,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:08,036 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:08,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:08,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:08,044 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 2 times [2021-08-27 14:15:08,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:08,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282012323] [2021-08-27 14:15:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:08,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:08,048 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:08,052 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:08,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:08,053 INFO L82 PathProgramCache]: Analyzing trace with hash 705693312, now seen corresponding path program 1 times [2021-08-27 14:15:08,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:08,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432847009] [2021-08-27 14:15:08,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:08,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:08,060 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:08,070 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:08,451 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:15:08,451 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:15:08,451 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:15:08,451 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:15:08,452 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:15:08,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:08,452 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:15:08,452 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:15:08,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration3_Lasso [2021-08-27 14:15:08,452 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:15:08,452 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:15:08,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:08,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:15:09,002 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:15:09,003 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:15:09,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:09,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:09,004 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:09,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 14:15:09,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:09,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:09,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:09,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:09,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:09,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:09,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:09,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:09,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:09,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:09,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:09,057 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:09,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 14:15:09,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:09,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:09,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:09,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:09,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:09,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:09,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:09,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:09,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:09,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:09,103 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:09,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 14:15:09,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:09,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:09,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:09,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:09,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:09,113 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:09,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:09,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:09,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:09,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:09,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:09,147 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:09,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:09,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:09,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:09,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:09,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:09,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 14:15:09,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:09,161 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:09,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:15:09,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:09,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:09,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:09,194 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:09,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:15:09,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:15:09,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:15:09,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:15:09,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:15:09,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:15:09,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:15:09,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 14:15:09,222 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:15:09,229 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-08-27 14:15:09,229 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-08-27 14:15:09,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:15:09,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:15:09,230 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:15:09,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 14:15:09,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:15:09,256 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:15:09,256 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:15:09,256 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 + 255 Supporting invariants [] [2021-08-27 14:15:09,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:09,315 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-08-27 14:15:09,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:15:09,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:15:09,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:15:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:15:09,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 14:15:09,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:15:09,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:15:09,413 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 [2021-08-27 14:15:09,414 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:09,434 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 32 transitions. Complement of second has 9 states. [2021-08-27 14:15:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 14:15:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-08-27 14:15:09,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2021-08-27 14:15:09,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:15:09,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2021-08-27 14:15:09,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:15:09,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2021-08-27 14:15:09,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:15:09,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2021-08-27 14:15:09,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:09,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 32 transitions. [2021-08-27 14:15:09,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-27 14:15:09,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-08-27 14:15:09,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2021-08-27 14:15:09,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:15:09,442 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-08-27 14:15:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2021-08-27 14:15:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-08-27 14:15:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 26 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-08-27 14:15:09,445 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-08-27 14:15:09,445 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-08-27 14:15:09,445 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 14:15:09,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2021-08-27 14:15:09,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:15:09,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:15:09,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:15:09,447 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2021-08-27 14:15:09,447 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:15:09,447 INFO L791 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 306#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~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_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 315#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 317#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 321#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 318#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 320#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 323#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 316#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 301#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 302#L553-2 [2021-08-27 14:15:09,448 INFO L793 eck$LassoCheckResult]: Loop: 302#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 311#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 312#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 313#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 322#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 302#L553-2 [2021-08-27 14:15:09,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:09,448 INFO L82 PathProgramCache]: Analyzing trace with hash 705693310, now seen corresponding path program 1 times [2021-08-27 14:15:09,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:09,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867803611] [2021-08-27 14:15:09,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:09,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:15:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:15:09,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:15:09,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867803611] [2021-08-27 14:15:09,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867803611] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:15:09,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:15:09,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-27 14:15:09,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272924812] [2021-08-27 14:15:09,565 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:15:09,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:15:09,565 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 3 times [2021-08-27 14:15:09,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:15:09,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103552887] [2021-08-27 14:15:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:15:09,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:15:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:09,569 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:15:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:15:09,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:15:09,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:15:09,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 14:15:09,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-27 14:15:09,643 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:15:09,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-08-27 14:15:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:15:09,720 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-08-27 14:15:09,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 14:15:09,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2021-08-27 14:15:09,721 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:15:09,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2021-08-27 14:15:09,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:15:09,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:15:09,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:15:09,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:15:09,722 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:15:09,722 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:15:09,722 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:15:09,722 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 14:15:09,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:15:09,722 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:15:09,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:15:09,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:15:09 BoogieIcfgContainer [2021-08-27 14:15:09,727 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:15:09,727 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:15:09,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:15:09,727 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:15:09,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:15:05" (3/4) ... [2021-08-27 14:15:09,729 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:15:09,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:15:09,730 INFO L168 Benchmark]: Toolchain (without parser) took 5509.35 ms. Allocated memory was 67.1 MB in the beginning and 134.2 MB in the end (delta: 67.1 MB). Free memory was 46.2 MB in the beginning and 103.2 MB in the end (delta: -57.0 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:15:09,731 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 49.1 MB in the end (delta: 52.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:15:09,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.29 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 45.2 MB in the end (delta: 705.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 14:15:09,731 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 67.1 MB. Free memory was 45.1 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:15:09,732 INFO L168 Benchmark]: Boogie Preprocessor took 25.64 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 42.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:15:09,732 INFO L168 Benchmark]: RCFGBuilder took 329.54 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 42.2 MB in the beginning and 72.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-08-27 14:15:09,732 INFO L168 Benchmark]: BuchiAutomizer took 4609.84 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 72.6 MB in the beginning and 104.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:15:09,733 INFO L168 Benchmark]: Witness Printer took 2.34 ms. Allocated memory is still 134.2 MB. Free memory was 104.2 MB in the beginning and 103.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:15:09,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 49.1 MB in the end (delta: 52.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.29 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 45.2 MB in the end (delta: 705.9 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 67.1 MB. Free memory was 45.1 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.64 ms. Allocated memory is still 67.1 MB. Free memory was 43.5 MB in the beginning and 42.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 329.54 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 42.2 MB in the beginning and 72.9 MB in the end (delta: -30.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4609.84 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 72.6 MB in the beginning and 104.2 MB in the end (delta: -31.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.34 ms. Allocated memory is still 134.2 MB. Free memory was 104.2 MB in the beginning and 103.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 255 + -1 * unknown-#memory_int-unknown[x][x] and consists of 5 locations. One deterministic module has affine ranking function 255 + -1 * unknown-#memory_int-unknown[x][x] and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 11.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 19 SDslu, 23 SDs, 0 SdLazy, 80 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 98.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital242 mio100 ax107 hnf100 lsp89 ukn57 mio100 lsp38 div163 bol100 ite100 ukn100 eq161 hnf69 smp94 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 14:15:09,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...