./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11C.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-recursive-malloc/rec_malloc_ex11C.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 faaae9aa069653e753b732f00a89bd7a139fa132 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:34:11,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:34:11,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:34:11,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:34:11,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:34:11,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:34:11,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:34:11,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:34:11,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:34:11,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:34:11,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:34:11,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:34:11,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:34:11,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:34:11,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:34:11,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:34:11,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:34:11,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:34:11,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:34:11,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:34:11,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:34:11,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:34:11,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:34:11,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:34:11,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:34:11,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:34:11,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:34:11,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:34:11,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:34:11,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:34:11,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:34:11,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:34:11,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:34:11,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:34:11,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:34:11,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:34:11,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:34:11,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:34:11,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:34:11,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:34:11,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:34:11,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:34:11,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:34:11,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:34:11,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:34:11,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:34:11,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:34:11,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:34:11,828 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:34:11,828 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:34:11,828 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:34:11,828 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:34:11,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:34:11,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:34:11,830 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:34:11,830 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:34:11,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:34:11,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:34:11,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:34:11,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:34:11,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:34:11,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:34:11,831 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:34:11,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faaae9aa069653e753b732f00a89bd7a139fa132 [2021-08-27 14:34:12,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:34:12,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:34:12,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:34:12,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:34:12,091 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:34:12,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11C.i [2021-08-27 14:34:12,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0cb70d/9a575a2d890247d7bf29ad0bbd135485/FLAG581af37f5 [2021-08-27 14:34:12,538 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:34:12,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex11C.i [2021-08-27 14:34:12,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0cb70d/9a575a2d890247d7bf29ad0bbd135485/FLAG581af37f5 [2021-08-27 14:34:12,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0cb70d/9a575a2d890247d7bf29ad0bbd135485 [2021-08-27 14:34:12,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:34:12,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:34:12,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:34:12,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:34:12,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:34:12,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c632e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12, skipping insertion in model container [2021-08-27 14:34:12,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:34:12,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:34:12,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:34:12,701 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:34:12,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:34:12,741 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:34:12,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12 WrapperNode [2021-08-27 14:34:12,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:34:12,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:34:12,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:34:12,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:34:12,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:34:12,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:34:12,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:34:12,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:34:12,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:34:12,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:34:12,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:34:12,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:34:12,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (1/1) ... [2021-08-27 14:34:12,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:12,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:12,826 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 14:34:12,856 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 14:34:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:34:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-08-27 14:34:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-08-27 14:34:12,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 14:34:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:34:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:34:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:34:12,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:34:13,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:34:13,117 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 14:34:13,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:34:13 BoogieIcfgContainer [2021-08-27 14:34:13,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:34:13,119 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:34:13,119 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:34:13,121 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:34:13,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:34:13,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:34:12" (1/3) ... [2021-08-27 14:34:13,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77b7e404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:34:13, skipping insertion in model container [2021-08-27 14:34:13,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:34:13,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:34:12" (2/3) ... [2021-08-27 14:34:13,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77b7e404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:34:13, skipping insertion in model container [2021-08-27 14:34:13,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:34:13,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:34:13" (3/3) ... [2021-08-27 14:34:13,124 INFO L389 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex11C.i [2021-08-27 14:34:13,162 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:34:13,163 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:34:13,163 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:34:13,163 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:34:13,163 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:34:13,163 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:34:13,163 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:34:13,163 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:34:13,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:13,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-08-27 14:34:13,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:34:13,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:34:13,187 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:34:13,187 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:34:13,187 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:34:13,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:13,189 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-08-27 14:34:13,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:34:13,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:34:13,190 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:34:13,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:34:13,194 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;havoc main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 10#L31-3true [2021-08-27 14:34:13,195 INFO L793 eck$LassoCheckResult]: Loop: 10#L31-3true call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 15#L31-1true assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;havoc main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 18#L35true assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 20#L39true call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 13#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 11#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 17#recFINALtrue assume true; 16#recEXITtrue >#44#return; 8#L39-1true assume -1 == main_#t~ret12;main_#t~ite13 := -1; 4#L39-3true call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 10#L31-3true [2021-08-27 14:34:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:13,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2021-08-27 14:34:13,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:13,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460013361] [2021-08-27 14:34:13,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:13,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,277 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,307 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:13,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2107477180, now seen corresponding path program 1 times [2021-08-27 14:34:13,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:13,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328897921] [2021-08-27 14:34:13,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:13,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-08-27 14:34:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:13,486 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 14:34:13,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:34:13,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328897921] [2021-08-27 14:34:13,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328897921] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:34:13,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:34:13,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-27 14:34:13,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062224179] [2021-08-27 14:34:13,489 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:34:13,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:34:13,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 14:34:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-27 14:34:13,499 INFO L87 Difference]: Start difference. First operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 14:34:13,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:34:13,570 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-08-27 14:34:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 14:34:13,572 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2021-08-27 14:34:13,573 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-08-27 14:34:13,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 19 transitions. [2021-08-27 14:34:13,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-08-27 14:34:13,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-08-27 14:34:13,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2021-08-27 14:34:13,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:34:13,580 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-27 14:34:13,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2021-08-27 14:34:13,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-27 14:34:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 14:34:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-08-27 14:34:13,598 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-27 14:34:13,598 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-08-27 14:34:13,598 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:34:13,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-08-27 14:34:13,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-08-27 14:34:13,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:34:13,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:34:13,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:34:13,602 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:34:13,603 INFO L791 eck$LassoCheckResult]: Stem: 59#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 60#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;havoc main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 58#L31-3 [2021-08-27 14:34:13,603 INFO L793 eck$LassoCheckResult]: Loop: 58#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 66#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;havoc main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 70#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 62#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 69#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 67#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 63#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 69#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 67#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 68#recFINAL assume true; 71#recEXIT >#42#return; 61#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 64#recFINAL assume true; 72#recEXIT >#44#return; 65#L39-1 assume -1 == main_#t~ret12;main_#t~ite13 := -1; 57#L39-3 call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 58#L31-3 [2021-08-27 14:34:13,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:13,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2021-08-27 14:34:13,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:13,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116418099] [2021-08-27 14:34:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:13,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,620 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,639 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:13,641 INFO L82 PathProgramCache]: Analyzing trace with hash 290320444, now seen corresponding path program 1 times [2021-08-27 14:34:13,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:13,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912943796] [2021-08-27 14:34:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:13,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,673 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,695 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:13,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:13,696 INFO L82 PathProgramCache]: Analyzing trace with hash -645910274, now seen corresponding path program 1 times [2021-08-27 14:34:13,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:13,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527233787] [2021-08-27 14:34:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:13,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,714 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:13,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:15,074 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:34:15,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:34:15,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:34:15,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:34:15,075 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:34:15,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:34:15,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:34:15,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11C.i_Iteration2_Lasso [2021-08-27 14:34:15,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:34:15,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:34:15,085 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 14:34:15,088 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 14:34:15,090 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 14:34:15,092 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 14:34:15,093 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 14:34:15,097 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 14:34:15,099 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 14:34:15,101 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 14:34:15,106 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 14:34:15,111 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 14:34:15,113 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 14:34:15,115 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 14:34:15,117 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 14:34:15,216 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 14:34:15,490 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:34:15,492 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:34:15,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,497 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 14:34:15,500 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 14:34:15,506 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 14:34:15,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-27 14:34:15,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,533 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 14:34:15,534 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 14:34:15,535 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 14:34:15,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:15,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,562 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 14:34:15,562 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 14:34:15,564 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 14:34:15,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,599 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 14:34:15,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,600 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 14:34:15,601 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 14:34:15,602 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 14:34:15,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,650 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 14:34:15,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,651 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 14:34:15,651 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 14:34:15,652 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 14:34:15,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,678 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 14:34:15,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,679 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 14:34:15,679 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 14:34:15,681 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 14:34:15,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:15,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:15,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,715 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 14:34:15,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,716 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 14:34:15,716 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 14:34:15,721 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 14:34:15,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,752 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 14:34:15,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,753 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 14:34:15,758 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 14:34:15,760 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 14:34:15,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:15,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:15,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,792 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 14:34:15,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,794 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 14:34:15,795 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 14:34:15,796 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 14:34:15,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,834 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 14:34:15,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,835 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 14:34:15,838 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 14:34:15,839 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 14:34:15,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,867 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 14:34:15,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,869 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 14:34:15,870 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 14:34:15,870 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 14:34:15,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-08-27 14:34:15,899 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,900 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 14:34:15,900 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 14:34:15,901 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 14:34:15,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:15,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,925 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 14:34:15,926 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 14:34:15,927 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 14:34:15,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:15,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:15,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:15,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:15,951 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 14:34:15,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,952 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 14:34:15,952 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 14:34:15,953 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 14:34:15,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:15,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:15,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:15,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:15,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:15,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:15,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:34:15,991 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 14:34:15,991 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 14:34:15,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:15,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:15,995 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 14:34:15,997 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 14:34:15,998 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:34:16,007 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:34:16,007 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:34:16,008 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0.base) ULTIMATE.start_main_~qq~0.offset)_1 Supporting invariants [] [2021-08-27 14:34:16,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-08-27 14:34:16,028 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-08-27 14:34:16,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:16,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:34:16,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:16,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-27 14:34:16,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:16,177 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-08-27 14:34:16,180 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 1 case distinctions, treesize of input 26 treesize of output 29 [2021-08-27 14:34:16,222 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-08-27 14:34:16,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-08-27 14:34:16,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-08-27 14:34:16,304 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 14:34:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-27 14:34:16,383 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-08-27 14:34:16,384 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:16,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 62 states and 73 transitions. Complement of second has 17 states. [2021-08-27 14:34:16,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-08-27 14:34:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 17 transitions. [2021-08-27 14:34:16,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 2 letters. Loop has 16 letters. [2021-08-27 14:34:16,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:16,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 18 letters. Loop has 16 letters. [2021-08-27 14:34:16,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:16,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 17 transitions. Stem has 2 letters. Loop has 32 letters. [2021-08-27 14:34:16,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:16,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 73 transitions. [2021-08-27 14:34:16,510 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-08-27 14:34:16,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 56 states and 67 transitions. [2021-08-27 14:34:16,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-08-27 14:34:16,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-08-27 14:34:16,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 67 transitions. [2021-08-27 14:34:16,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:34:16,512 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 67 transitions. [2021-08-27 14:34:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 67 transitions. [2021-08-27 14:34:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2021-08-27 14:34:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-08-27 14:34:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2021-08-27 14:34:16,517 INFO L704 BuchiCegarLoop]: Abstraction has 51 states and 60 transitions. [2021-08-27 14:34:16,517 INFO L587 BuchiCegarLoop]: Abstraction has 51 states and 60 transitions. [2021-08-27 14:34:16,517 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:34:16,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 60 transitions. [2021-08-27 14:34:16,518 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-08-27 14:34:16,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:34:16,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:34:16,518 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:34:16,518 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:34:16,519 INFO L791 eck$LassoCheckResult]: Stem: 242#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 243#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;havoc main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 254#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 257#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;havoc main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 267#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 259#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 263#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 258#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 245#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 261#recENTRY [2021-08-27 14:34:16,519 INFO L793 eck$LassoCheckResult]: Loop: 261#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 288#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 246#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 261#recENTRY [2021-08-27 14:34:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:16,519 INFO L82 PathProgramCache]: Analyzing trace with hash -498407605, now seen corresponding path program 1 times [2021-08-27 14:34:16,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:16,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787987310] [2021-08-27 14:34:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:16,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:16,530 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:16,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:16,549 INFO L82 PathProgramCache]: Analyzing trace with hash 29956, now seen corresponding path program 1 times [2021-08-27 14:34:16,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:16,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131912839] [2021-08-27 14:34:16,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:16,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:16,554 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:16,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:16,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:16,559 INFO L82 PathProgramCache]: Analyzing trace with hash -359018118, now seen corresponding path program 2 times [2021-08-27 14:34:16,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:16,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556936618] [2021-08-27 14:34:16,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:16,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:16,579 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:16,611 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:18,115 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:34:18,115 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:34:18,116 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:34:18,116 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:34:18,116 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:34:18,116 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,116 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:34:18,116 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:34:18,116 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11C.i_Iteration3_Lasso [2021-08-27 14:34:18,116 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:34:18,116 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:34:18,118 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 14:34:18,122 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 14:34:18,124 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 14:34:18,125 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 14:34:18,127 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 14:34:18,204 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 14:34:18,206 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 14:34:18,208 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 14:34:18,209 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 14:34:18,211 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 14:34:18,213 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 14:34:18,214 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 14:34:18,216 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 14:34:18,217 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 14:34:18,219 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 14:34:18,221 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 14:34:18,223 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 14:34:18,225 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 14:34:18,227 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 14:34:18,229 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 14:34:18,231 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 14:34:18,232 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 14:34:18,234 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 14:34:18,236 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 14:34:18,237 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 14:34:18,239 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 14:34:18,240 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 14:34:18,242 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 14:34:18,243 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 14:34:18,245 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 14:34:18,248 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 14:34:18,249 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 14:34:18,254 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 14:34:18,256 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 14:34:18,258 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 14:34:18,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:34:18,594 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:34:18,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,606 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 14:34:18,607 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 14:34:18,609 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 14:34:18,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:18,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:18,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:18,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:18,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:18,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:18,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:18,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:18,636 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 14:34:18,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,637 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 14:34:18,638 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 14:34:18,639 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 14:34:18,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:18,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:18,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:18,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:18,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:18,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:18,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:18,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:18,661 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 14:34:18,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,662 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 14:34:18,662 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 14:34:18,663 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 14:34:18,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:18,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:18,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:18,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:18,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:18,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:18,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:18,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:18,697 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 14:34:18,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,699 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 14:34:18,700 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 14:34:18,701 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 14:34:18,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:18,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:18,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:18,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:18,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:18,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:18,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:18,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:18,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-08-27 14:34:18,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,724 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 14:34:18,726 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 14:34:18,727 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 14:34:18,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:18,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:18,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:18,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:18,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:18,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:18,759 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:18,775 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 14:34:18,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,776 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 14:34:18,778 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 14:34:18,779 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 14:34:18,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:18,784 INFO L203 nArgumentSynthesizer]: 8 stem disjuncts [2021-08-27 14:34:18,784 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-08-27 14:34:18,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:18,800 INFO L401 nArgumentSynthesizer]: We have 44 Motzkin's Theorem applications. [2021-08-27 14:34:18,800 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 14:34:18,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:18,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-08-27 14:34:18,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,837 INFO L229 MonitoredProcess]: Starting monitored process 23 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 14:34:18,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-27 14:34:18,848 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 14:34:18,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:18,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:18,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:18,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:18,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:18,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:18,872 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:34:18,883 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-08-27 14:34:18,883 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-08-27 14:34:18,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:18,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:18,885 INFO L229 MonitoredProcess]: Starting monitored process 24 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 14:34:18,891 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:34:18,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-27 14:34:18,903 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2021-08-27 14:34:18,903 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:34:18,903 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_1) = 2*v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_1 + 3 Supporting invariants [1*v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_1 + 1 >= 0, -1*v_rep(select (select #memory_int rec_#in~op.base) rec_#in~op.offset)_1 + 1*v_rep(select (select old(#memory_int) rec_#in~op.base) rec_#in~op.offset)_1 >= 0] [2021-08-27 14:34:18,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:18,926 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2021-08-27 14:34:18,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:18,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 14:34:18,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:19,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-27 14:34:19,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:19,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-08-27 14:34:19,063 INFO L354 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2021-08-27 14:34:19,063 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 1 case distinctions, treesize of input 36 treesize of output 35 [2021-08-27 14:34:19,090 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 14:34:19,091 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 14:34:19,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 60 transitions. cyclomatic complexity: 14 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:34:19,146 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 60 transitions. cyclomatic complexity: 14. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 99 states and 122 transitions. Complement of second has 17 states. [2021-08-27 14:34:19,149 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 14:34:19,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:34:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-08-27 14:34:19,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 9 letters. Loop has 3 letters. [2021-08-27 14:34:19,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:19,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 12 letters. Loop has 3 letters. [2021-08-27 14:34:19,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:19,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 9 letters. Loop has 6 letters. [2021-08-27 14:34:19,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:19,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 122 transitions. [2021-08-27 14:34:19,159 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-08-27 14:34:19,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 87 states and 110 transitions. [2021-08-27 14:34:19,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-08-27 14:34:19,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-08-27 14:34:19,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 110 transitions. [2021-08-27 14:34:19,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:34:19,163 INFO L681 BuchiCegarLoop]: Abstraction has 87 states and 110 transitions. [2021-08-27 14:34:19,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 110 transitions. [2021-08-27 14:34:19,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2021-08-27 14:34:19,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 63 states have internal predecessors, (69), 14 states have call successors, (14), 11 states have call predecessors, (14), 10 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2021-08-27 14:34:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 102 transitions. [2021-08-27 14:34:19,177 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 102 transitions. [2021-08-27 14:34:19,177 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 102 transitions. [2021-08-27 14:34:19,177 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 14:34:19,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 102 transitions. [2021-08-27 14:34:19,181 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2021-08-27 14:34:19,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:34:19,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:34:19,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:34:19,182 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:34:19,183 INFO L791 eck$LassoCheckResult]: Stem: 482#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 483#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;havoc main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 498#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 500#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;havoc main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 558#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 524#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 557#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 556#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 487#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 548#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 503#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 504#recFINAL assume true; 515#recEXIT >#42#return; 531#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 529#recFINAL assume true; 523#recEXIT >#44#return; 496#L39-1 assume !(-1 == main_#t~ret12);main_#t~ite13 := 1; 478#L39-3 [2021-08-27 14:34:19,183 INFO L793 eck$LassoCheckResult]: Loop: 478#L39-3 call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 479#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 532#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;havoc main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 530#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 519#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 520#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 536#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 527#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 520#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 536#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 537#recFINAL assume true; 538#recEXIT >#42#return; 528#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 535#recFINAL assume true; 526#recEXIT >#44#return; 522#L39-1 assume -1 == main_#t~ret12;main_#t~ite13 := -1; 478#L39-3 [2021-08-27 14:34:19,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:19,183 INFO L82 PathProgramCache]: Analyzing trace with hash -713572475, now seen corresponding path program 1 times [2021-08-27 14:34:19,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:19,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174182751] [2021-08-27 14:34:19,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:19,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-08-27 14:34:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-08-27 14:34:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:19,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 14:34:19,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:34:19,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174182751] [2021-08-27 14:34:19,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174182751] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:34:19,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320950944] [2021-08-27 14:34:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:19,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 14:34:19,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:19,352 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 14:34:19,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-08-27 14:34:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:19,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 30 conjunts are in the unsatisfiable core [2021-08-27 14:34:19,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:19,465 INFO L354 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2021-08-27 14:34:19,466 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 1 case distinctions, treesize of input 25 treesize of output 28 [2021-08-27 14:34:19,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-08-27 14:34:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:34:19,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320950944] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 14:34:19,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 14:34:19,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-08-27 14:34:19,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602669390] [2021-08-27 14:34:19,624 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:34:19,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:19,624 INFO L82 PathProgramCache]: Analyzing trace with hash 542882406, now seen corresponding path program 2 times [2021-08-27 14:34:19,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:19,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387413617] [2021-08-27 14:34:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:19,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:19,640 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:19,661 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:20,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:34:20,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 14:34:20,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-08-27 14:34:20,633 INFO L87 Difference]: Start difference. First operand 83 states and 102 transitions. cyclomatic complexity: 26 Second operand has 15 states, 12 states have (on average 1.5) internal successors, (18), 11 states have internal predecessors, (18), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-27 14:34:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:34:20,758 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2021-08-27 14:34:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 14:34:20,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 110 transitions. [2021-08-27 14:34:20,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:34:20,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 54 states and 67 transitions. [2021-08-27 14:34:20,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-08-27 14:34:20,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-08-27 14:34:20,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 67 transitions. [2021-08-27 14:34:20,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 14:34:20,762 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 67 transitions. [2021-08-27 14:34:20,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 67 transitions. [2021-08-27 14:34:20,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2021-08-27 14:34:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.125) internal successors, (36), 35 states have internal predecessors, (36), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (10), 3 states have call predecessors, (10), 6 states have call successors, (10) [2021-08-27 14:34:20,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2021-08-27 14:34:20,765 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-08-27 14:34:20,765 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 54 transitions. [2021-08-27 14:34:20,765 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-08-27 14:34:20,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 54 transitions. [2021-08-27 14:34:20,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-27 14:34:20,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:34:20,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:34:20,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:34:20,766 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 14:34:20,766 INFO L791 eck$LassoCheckResult]: Stem: 734#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 735#L-1 havoc main_#res;havoc main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet10, main_#t~mem11, main_#t~mem14, main_#t~ret12, main_#t~ite13, main_~pp~0.base, main_~pp~0.offset, main_#t~mem8, main_~qq~0.base, main_~qq~0.offset;call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnHeap(4);main_~qq~0.base, main_~qq~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;havoc main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(main_#t~nondet7, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~nondet7; 743#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 744#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;havoc main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 775#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 762#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 774#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 773#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 737#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 766#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 750#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~op.base, ~op.offset, 4);~r~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~r~0; 751#recFINAL assume true; 776#recEXIT >#42#return; 764#L18-1 ~res~0 := #t~ret5;havoc #t~ret5;call ULTIMATE.dealloc(~op.base, ~op.offset);#res := ~res~0; 763#recFINAL assume true; 761#recEXIT >#44#return; 742#L39-1 assume -1 == main_#t~ret12;main_#t~ite13 := -1; 732#L39-3 call write~int(main_#t~mem14 + main_#t~ite13, main_~qq~0.base, main_~qq~0.offset, 4);havoc main_#t~mem14;havoc main_#t~ret12;havoc main_#t~ite13; 733#L31-3 call main_#t~mem8 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 746#L31-1 assume !!(main_#t~mem8 > 1);havoc main_#t~mem8;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnHeap(4);main_~pp~0.base, main_~pp~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;havoc main_#t~malloc9.base, main_#t~malloc9.offset;call write~int(main_#t~nondet10, main_~pp~0.base, main_~pp~0.offset, 4);havoc main_#t~nondet10;call main_#t~mem11 := read~int(main_~pp~0.base, main_~pp~0.offset, 4); 757#L35 assume !(main_#t~mem11 < 0);havoc main_#t~mem11;call main_#t~mem14 := read~int(main_~qq~0.base, main_~qq~0.offset, 4); 748#L39 call main_#t~ret12 := rec(main_~pp~0.base, main_~pp~0.offset);< 752#recENTRY [2021-08-27 14:34:20,766 INFO L793 eck$LassoCheckResult]: Loop: 752#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;call #t~mem1 := read~int(~op.base, ~op.offset, 4); 747#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~op.base, ~op.offset, 4);call write~int(#t~mem4 - 1, ~ip~0.base, ~ip~0.offset, 4);havoc #t~mem4; 749#L18 call #t~ret5 := rec(~ip~0.base, ~ip~0.offset);< 752#recENTRY [2021-08-27 14:34:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:20,767 INFO L82 PathProgramCache]: Analyzing trace with hash -873815595, now seen corresponding path program 2 times [2021-08-27 14:34:20,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:20,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758481530] [2021-08-27 14:34:20,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:20,767 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:20,784 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:20,795 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:20,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:20,795 INFO L82 PathProgramCache]: Analyzing trace with hash 29956, now seen corresponding path program 2 times [2021-08-27 14:34:20,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:20,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081610850] [2021-08-27 14:34:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:20,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:20,807 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:20,811 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:20,812 INFO L82 PathProgramCache]: Analyzing trace with hash -43609424, now seen corresponding path program 3 times [2021-08-27 14:34:20,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:34:20,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745195681] [2021-08-27 14:34:20,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:34:20,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:34:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:20,825 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:34:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:34:20,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:34:24,669 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:34:24,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:34:24,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:34:24,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:34:24,669 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:34:24,669 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:24,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:34:24,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:34:24,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex11C.i_Iteration5_Lasso [2021-08-27 14:34:24,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:34:24,669 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:34:24,673 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 14:34:24,676 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 14:34:24,678 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 14:34:24,681 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 14:34:24,682 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 14:34:24,684 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 14:34:24,686 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 14:34:24,687 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 14:34:24,689 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 14:34:24,690 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 14:34:24,695 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 14:34:24,697 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 14:34:24,698 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 14:34:24,899 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 14:34:24,901 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 14:34:24,905 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 14:34:24,907 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 14:34:24,908 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 14:34:24,910 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 14:34:24,911 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 14:34:24,913 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 14:34:24,914 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 14:34:24,916 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 14:34:24,917 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 14:34:24,919 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 14:34:24,920 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 14:34:24,922 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 14:34:24,924 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 14:34:24,925 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 14:34:24,927 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 14:34:24,928 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 14:34:24,930 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 14:34:24,931 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 14:34:24,933 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 14:34:24,934 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 14:34:25,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:34:25,531 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:34:25,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,532 INFO L229 MonitoredProcess]: Starting monitored process 26 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 14:34:25,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 14:34:25,534 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 14:34:25,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:25,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,560 INFO L229 MonitoredProcess]: Starting monitored process 27 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 14:34:25,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 14:34:25,566 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 14:34:25,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-08-27 14:34:25,587 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,588 INFO L229 MonitoredProcess]: Starting monitored process 28 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 14:34:25,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 14:34:25,590 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 14:34:25,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:25,614 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,614 INFO L229 MonitoredProcess]: Starting monitored process 29 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 14:34:25,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 14:34:25,616 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 14:34:25,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-08-27 14:34:25,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,645 INFO L229 MonitoredProcess]: Starting monitored process 30 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 14:34:25,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-27 14:34:25,648 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 14:34:25,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:25,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:25,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-08-27 14:34:25,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,672 INFO L229 MonitoredProcess]: Starting monitored process 31 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 14:34:25,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-27 14:34:25,674 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 14:34:25,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:25,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,698 INFO L229 MonitoredProcess]: Starting monitored process 32 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 14:34:25,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-27 14:34:25,700 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 14:34:25,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,706 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:25,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,731 INFO L229 MonitoredProcess]: Starting monitored process 33 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 14:34:25,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-27 14:34:25,733 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 14:34:25,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-08-27 14:34:25,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,764 INFO L229 MonitoredProcess]: Starting monitored process 34 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 14:34:25,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-27 14:34:25,766 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 14:34:25,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-08-27 14:34:25,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,806 INFO L229 MonitoredProcess]: Starting monitored process 35 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 14:34:25,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-27 14:34:25,808 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 14:34:25,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:25,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:25,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-08-27 14:34:25,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,832 INFO L229 MonitoredProcess]: Starting monitored process 36 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 14:34:25,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-27 14:34:25,834 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 14:34:25,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-08-27 14:34:25,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,856 INFO L229 MonitoredProcess]: Starting monitored process 37 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 14:34:25,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-27 14:34:25,858 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 14:34:25,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:34:25,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:34:25,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:34:25,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-08-27 14:34:25,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,880 INFO L229 MonitoredProcess]: Starting monitored process 38 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 14:34:25,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-27 14:34:25,882 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 14:34:25,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:25,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:25,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-08-27 14:34:25,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,911 INFO L229 MonitoredProcess]: Starting monitored process 39 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 14:34:25,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-27 14:34:25,913 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 14:34:25,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:25,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:25,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:25,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,955 INFO L229 MonitoredProcess]: Starting monitored process 40 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 14:34:25,960 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 14:34:25,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:25,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:25,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:25,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:25,966 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:25,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:25,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-27 14:34:25,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:25,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:25,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:25,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:25,993 INFO L229 MonitoredProcess]: Starting monitored process 41 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 14:34:25,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-27 14:34:25,995 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 14:34:26,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:26,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:26,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:26,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:26,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:26,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:26,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:26,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:26,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:26,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:26,018 INFO L229 MonitoredProcess]: Starting monitored process 42 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 14:34:26,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-27 14:34:26,020 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 14:34:26,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:26,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:26,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:26,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:26,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:26,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:26,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:34:26,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-08-27 14:34:26,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:26,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:26,044 INFO L229 MonitoredProcess]: Starting monitored process 43 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 14:34:26,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-27 14:34:26,046 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 14:34:26,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:34:26,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:34:26,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:34:26,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:34:26,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:34:26,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:34:26,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:34:26,097 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-08-27 14:34:26,097 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-08-27 14:34:26,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:34:26,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:34:26,098 INFO L229 MonitoredProcess]: Starting monitored process 44 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 14:34:26,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-27 14:34:26,100 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:34:26,107 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:34:26,108 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:34:26,108 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~op.base) 0)_1) = 2*v_rep(select (select #memory_int rec_#in~op.base) 0)_1 + 1 Supporting invariants [] [2021-08-27 14:34:26,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-08-27 14:34:26,127 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2021-08-27 14:34:26,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:26,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 14:34:26,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:26,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:26,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 14:34:26,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:26,521 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 14:34:26,530 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-08-27 14:34:26,530 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 1 case distinctions, treesize of input 36 treesize of output 31 [2021-08-27 14:34:26,555 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 14:34:26,555 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-08-27 14:34:26,555 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13 Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:26,630 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 55 states and 65 transitions. Complement of second has 15 states. [2021-08-27 14:34:26,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 14:34:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:26,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2021-08-27 14:34:26,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 22 letters. Loop has 3 letters. [2021-08-27 14:34:26,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:26,631 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 14:34:26,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:26,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 14:34:26,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:26,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 14:34:26,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:26,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 14:34:26,942 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-08-27 14:34:26,942 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 1 case distinctions, treesize of input 36 treesize of output 31 [2021-08-27 14:34:26,964 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 14:34:26,964 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 3 loop predicates [2021-08-27 14:34:26,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13 Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:27,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 55 states and 65 transitions. Complement of second has 15 states. [2021-08-27 14:34:27,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 14:34:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2021-08-27 14:34:27,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 22 letters. Loop has 3 letters. [2021-08-27 14:34:27,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:27,038 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 14:34:27,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:34:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:27,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 14:34:27,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:34:27,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 14:34:27,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:34:27,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-27 14:34:27,378 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-08-27 14:34:27,378 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 1 case distinctions, treesize of input 36 treesize of output 31 [2021-08-27 14:34:27,401 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 14:34:27,401 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-08-27 14:34:27,401 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13 Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:27,516 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 54 transitions. cyclomatic complexity: 13. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 68 states and 78 transitions. Complement of second has 16 states. [2021-08-27 14:34:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 3 non-accepting loop states 1 accepting loop states [2021-08-27 14:34:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-27 14:34:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 24 transitions. [2021-08-27 14:34:27,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 22 letters. Loop has 3 letters. [2021-08-27 14:34:27,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:27,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 25 letters. Loop has 3 letters. [2021-08-27 14:34:27,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:27,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 22 letters. Loop has 6 letters. [2021-08-27 14:34:27,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:34:27,520 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 78 transitions. [2021-08-27 14:34:27,520 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:34:27,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 0 states and 0 transitions. [2021-08-27 14:34:27,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:34:27,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:34:27,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:34:27,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:34:27,521 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:34:27,521 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:34:27,521 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:34:27,521 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-08-27 14:34:27,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:34:27,521 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:34:27,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:34:27,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:34:27 BoogieIcfgContainer [2021-08-27 14:34:27,525 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:34:27,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:34:27,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:34:27,526 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:34:27,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:34:13" (3/4) ... [2021-08-27 14:34:27,528 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:34:27,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:34:27,528 INFO L168 Benchmark]: Toolchain (without parser) took 14966.39 ms. Allocated memory was 56.6 MB in the beginning and 255.9 MB in the end (delta: 199.2 MB). Free memory was 34.9 MB in the beginning and 222.8 MB in the end (delta: -187.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:34:27,529 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:34:27,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.08 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 14:34:27,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.33 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 38.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:34:27,529 INFO L168 Benchmark]: Boogie Preprocessor took 34.78 ms. Allocated memory is still 56.6 MB. Free memory was 38.0 MB in the beginning and 36.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:34:27,529 INFO L168 Benchmark]: RCFGBuilder took 315.87 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.6 MB in the beginning and 50.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:34:27,530 INFO L168 Benchmark]: BuchiAutomizer took 14406.05 ms. Allocated memory was 69.2 MB in the beginning and 255.9 MB in the end (delta: 186.6 MB). Free memory was 50.4 MB in the beginning and 222.8 MB in the end (delta: -172.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-08-27 14:34:27,530 INFO L168 Benchmark]: Witness Printer took 2.33 ms. Allocated memory is still 255.9 MB. Free memory is still 222.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:34:27,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 178.08 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.33 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 38.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.78 ms. Allocated memory is still 56.6 MB. Free memory was 38.0 MB in the beginning and 36.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 315.87 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.6 MB in the beginning and 50.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14406.05 ms. Allocated memory was 69.2 MB in the beginning and 255.9 MB in the end (delta: 186.6 MB). Free memory was 50.4 MB in the beginning and 222.8 MB in the end (delta: -172.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.33 ms. Allocated memory is still 255.9 MB. Free memory is still 222.8 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[qq][qq] and consists of 8 locations. One deterministic module has affine ranking function 3 + 2 * \old(unknown-#memory_int-unknown)[op][op] and consists of 5 locations. One nondeterministic module has affine ranking function 2 * unknown-#memory_int-unknown[op][0] + 1 and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 11.9s. Construction of modules took 0.2s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 30.4ms AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 83 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/4 HoareTripleCheckerStatistics: 84 SDtfs, 63 SDslu, 183 SDs, 0 SdLazy, 327 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 229.9ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital405 mio100 ax100 hnf100 lsp98 ukn36 mio100 lsp28 div100 bol100 ite100 ukn100 eq168 hnf94 smp100 dnf467 smp77 tf100 neg84 sie160 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 4 VariablesLoop: 2 DisjunctsStem: 8 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 44 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 14:34:27,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-08-27 14:34:27,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...