./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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-15/count_up_and_down_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:04:50,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:04:50,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:04:50,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:04:50,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:04:50,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:04:50,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:04:50,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:04:50,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:04:50,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:04:50,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:04:50,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:04:50,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:04:50,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:04:50,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:04:50,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:04:50,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:04:50,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:04:50,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:04:50,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:04:50,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:04:50,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:04:50,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:04:50,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:04:50,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:04:50,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:04:50,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:04:50,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:04:50,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:04:50,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:04:50,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:04:50,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:04:50,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:04:50,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:04:50,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:04:50,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:04:50,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:04:50,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:04:50,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:04:50,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:04:50,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:04:50,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 22:04:50,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:04:50,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:04:50,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:04:50,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:04:50,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:04:50,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:04:50,871 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:04:50,871 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:04:50,872 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:04:50,872 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:04:50,873 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:04:50,873 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:04:50,873 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:04:50,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:04:50,873 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:04:50,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:04:50,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:04:50,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:04:50,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:04:50,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:04:50,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:04:50,874 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:04:50,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:04:50,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:04:50,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:04:50,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:04:50,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:04:50,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:04:50,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:04:50,878 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:04:50,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a [2021-12-21 22:04:51,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:04:51,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:04:51,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:04:51,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:04:51,155 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:04:51,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2021-12-21 22:04:51,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58668f67/1d32090b98064d05b26fbdcf73b5ead1/FLAG7113d3a40 [2021-12-21 22:04:51,651 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:04:51,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2021-12-21 22:04:51,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58668f67/1d32090b98064d05b26fbdcf73b5ead1/FLAG7113d3a40 [2021-12-21 22:04:52,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c58668f67/1d32090b98064d05b26fbdcf73b5ead1 [2021-12-21 22:04:52,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:04:52,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:04:52,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:04:52,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:04:52,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:04:52,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245bdb2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52, skipping insertion in model container [2021-12-21 22:04:52,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:04:52,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:04:52,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:04:52,411 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:04:52,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:04:52,488 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:04:52,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52 WrapperNode [2021-12-21 22:04:52,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:04:52,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:04:52,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:04:52,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:04:52,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,536 INFO L137 Inliner]: procedures = 151, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2021-12-21 22:04:52,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:04:52,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:04:52,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:04:52,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:04:52,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:04:52,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:04:52,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:04:52,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:04:52,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (1/1) ... [2021-12-21 22:04:52,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:52,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:52,609 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) [2021-12-21 22:04:52,639 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 [2021-12-21 22:04:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:04:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:04:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:04:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:04:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:04:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:04:52,738 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:04:52,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:04:52,894 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:04:52,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:04:52,899 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-21 22:04:52,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:04:52 BoogieIcfgContainer [2021-12-21 22:04:52,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:04:52,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:04:52,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:04:52,918 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:04:52,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:04:52,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:04:52" (1/3) ... [2021-12-21 22:04:52,920 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7bc107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:04:52, skipping insertion in model container [2021-12-21 22:04:52,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:04:52,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:52" (2/3) ... [2021-12-21 22:04:52,920 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b7bc107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:04:52, skipping insertion in model container [2021-12-21 22:04:52,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:04:52,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:04:52" (3/3) ... [2021-12-21 22:04:52,922 INFO L388 chiAutomizerObserver]: Analyzing ICFG count_up_and_down_alloca.i [2021-12-21 22:04:52,979 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:04:52,979 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:04:52,980 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:04:52,980 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:04:52,980 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:04:52,980 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:04:52,980 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:04:52,980 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:04:52,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:53,009 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-21 22:04:53,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:04:53,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:04:53,014 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-21 22:04:53,015 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:04:53,015 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:04:53,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:53,018 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-21 22:04:53,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:04:53,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:04:53,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-21 22:04:53,019 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:04:53,024 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 15#L367true assume !(main_~length~0#1 < 1); 12#L367-2true call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 8#L369true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 3#L371-3true [2021-12-21 22:04:53,025 INFO L793 eck$LassoCheckResult]: Loop: 3#L371-3true assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 14#L371-2true main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 3#L371-3true [2021-12-21 22:04:53,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:53,034 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-12-21 22:04:53,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:53,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025366981] [2021-12-21 22:04:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:53,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:53,142 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:53,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:53,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-12-21 22:04:53,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:53,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529550286] [2021-12-21 22:04:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:53,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:53,207 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:53,230 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-12-21 22:04:53,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:53,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038426388] [2021-12-21 22:04:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:53,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:53,278 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:53,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:53,703 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:04:53,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:04:53,706 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:04:53,706 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:04:53,706 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:04:53,706 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:53,706 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:04:53,707 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:04:53,707 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration1_Lasso [2021-12-21 22:04:53,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:04:53,708 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:04:53,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:53,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:54,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:04:54,211 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:04:54,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,219 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) [2021-12-21 22:04:54,227 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 [2021-12-21 22:04:54,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:04:54,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:04:54,244 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 [2021-12-21 22:04:54,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-21 22:04:54,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,284 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) [2021-12-21 22:04:54,290 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 [2021-12-21 22:04:54,291 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 [2021-12-21 22:04:54,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,323 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 [2021-12-21 22:04:54,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,325 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) [2021-12-21 22:04:54,326 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 [2021-12-21 22:04:54,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:04:54,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,363 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 [2021-12-21 22:04:54,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,365 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) [2021-12-21 22:04:54,367 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 [2021-12-21 22:04:54,373 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 [2021-12-21 22:04:54,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,399 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 [2021-12-21 22:04:54,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,401 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) [2021-12-21 22:04:54,401 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 [2021-12-21 22:04:54,403 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 [2021-12-21 22:04:54,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,460 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 [2021-12-21 22:04:54,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,461 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) [2021-12-21 22:04:54,462 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 [2021-12-21 22:04:54,464 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 [2021-12-21 22:04:54,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,503 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 [2021-12-21 22:04:54,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,504 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) [2021-12-21 22:04:54,505 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 [2021-12-21 22:04:54,507 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 [2021-12-21 22:04:54,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,532 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 [2021-12-21 22:04:54,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,533 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) [2021-12-21 22:04:54,534 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 [2021-12-21 22:04:54,535 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 [2021-12-21 22:04:54,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,561 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 [2021-12-21 22:04:54,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,563 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) [2021-12-21 22:04:54,564 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 [2021-12-21 22:04:54,565 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 [2021-12-21 22:04:54,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,607 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 [2021-12-21 22:04:54,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,609 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) [2021-12-21 22:04:54,610 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 [2021-12-21 22:04:54,611 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 [2021-12-21 22:04:54,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:54,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:54,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:54,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,657 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 [2021-12-21 22:04:54,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,658 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) [2021-12-21 22:04:54,666 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 [2021-12-21 22:04:54,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,677 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:04:54,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:04:54,682 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 [2021-12-21 22:04:54,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:54,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-21 22:04:54,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,723 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) [2021-12-21 22:04:54,724 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 [2021-12-21 22:04:54,730 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 [2021-12-21 22:04:54,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:54,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:54,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:54,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:54,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:04:54,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:04:54,769 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:04:54,831 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-12-21 22:04:54,831 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-21 22:04:54,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:54,834 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) [2021-12-21 22:04:54,835 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 [2021-12-21 22:04:54,865 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:04:54,889 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:04:54,889 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:04:54,889 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~length~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~length~0#1 Supporting invariants [] [2021-12-21 22:04:54,907 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 [2021-12-21 22:04:54,918 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-12-21 22:04:54,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:54,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:04:54,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:54,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 22:04:54,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:55,032 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 22:04:55,033 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:55,083 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 54 transitions. Complement of second has 7 states. [2021-12-21 22:04:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:04:55,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:55,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2021-12-21 22:04:55,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-21 22:04:55,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:55,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-21 22:04:55,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:55,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-21 22:04:55,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:55,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 54 transitions. [2021-12-21 22:04:55,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 22:04:55,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 13 states and 17 transitions. [2021-12-21 22:04:55,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-21 22:04:55,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-21 22:04:55,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-12-21 22:04:55,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:04:55,105 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-21 22:04:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-12-21 22:04:55,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-21 22:04:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-12-21 22:04:55,128 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-21 22:04:55,128 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-21 22:04:55,128 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:04:55,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-12-21 22:04:55,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 22:04:55,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:04:55,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:04:55,129 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:04:55,129 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-21 22:04:55,130 INFO L791 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 131#L367 assume !(main_~length~0#1 < 1); 129#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 130#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 119#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 120#L371-4 main_~j~0#1 := 0; 124#L374-3 [2021-12-21 22:04:55,130 INFO L793 eck$LassoCheckResult]: Loop: 124#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 127#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 128#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 123#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 124#L374-3 [2021-12-21 22:04:55,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:55,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2021-12-21 22:04:55,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:55,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741844167] [2021-12-21 22:04:55,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:55,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:55,144 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:55,153 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:55,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:55,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2036812, now seen corresponding path program 1 times [2021-12-21 22:04:55,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:55,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4663027] [2021-12-21 22:04:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:55,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:55,158 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:55,162 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:55,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:55,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1386095268, now seen corresponding path program 1 times [2021-12-21 22:04:55,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:55,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63575868] [2021-12-21 22:04:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:55,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:55,174 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:55,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:55,367 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 [2021-12-21 22:04:55,419 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:04:55,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:04:55,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:04:55,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:04:55,419 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:04:55,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:55,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:04:55,420 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:04:55,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration2_Lasso [2021-12-21 22:04:55,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:04:55,420 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:04:55,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:55,786 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:04:55,786 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:04:55,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:55,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:55,792 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) [2021-12-21 22:04:55,794 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 [2021-12-21 22:04:55,795 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 [2021-12-21 22:04:55,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:55,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:55,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:55,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:55,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:55,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:55,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:55,818 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:55,838 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 [2021-12-21 22:04:55,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:55,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:55,839 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) [2021-12-21 22:04:55,840 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 [2021-12-21 22:04:55,842 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 [2021-12-21 22:04:55,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:55,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:55,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:55,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:55,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:04:55,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:04:55,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:55,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-21 22:04:55,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:55,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:55,882 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) [2021-12-21 22:04:55,883 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 [2021-12-21 22:04:55,885 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 [2021-12-21 22:04:55,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:55,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:55,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:55,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:55,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:55,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:55,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:55,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:55,941 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 [2021-12-21 22:04:55,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:55,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:55,942 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) [2021-12-21 22:04:55,947 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 [2021-12-21 22:04:55,950 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 [2021-12-21 22:04:55,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:55,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:55,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:55,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:55,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:55,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:55,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:55,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:55,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-21 22:04:55,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:55,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:55,989 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) [2021-12-21 22:04:55,990 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 [2021-12-21 22:04:55,991 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 [2021-12-21 22:04:55,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:55,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:55,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:55,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:55,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:55,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:55,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:55,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:56,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-21 22:04:56,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:56,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:56,017 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) [2021-12-21 22:04:56,022 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 [2021-12-21 22:04:56,022 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 [2021-12-21 22:04:56,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:56,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:56,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:56,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:56,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:56,029 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:56,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:56,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:56,062 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 [2021-12-21 22:04:56,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:56,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:56,063 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) [2021-12-21 22:04:56,064 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 [2021-12-21 22:04:56,065 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 [2021-12-21 22:04:56,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:56,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:56,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:56,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:56,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:56,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:56,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:56,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:56,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-21 22:04:56,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:56,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:56,091 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) [2021-12-21 22:04:56,091 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 [2021-12-21 22:04:56,093 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 [2021-12-21 22:04:56,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:56,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:56,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:56,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:56,109 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:04:56,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:04:56,123 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:04:56,137 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-21 22:04:56,137 INFO L444 ModelExtractionUtils]: 3 out of 25 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-12-21 22:04:56,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:56,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:56,140 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) [2021-12-21 22:04:56,148 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:04:56,156 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 [2021-12-21 22:04:56,170 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:04:56,170 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:04:56,170 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc206#1.base)_2, ULTIMATE.start_main_~arr~0#1.offset, ULTIMATE.start_main_~j~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206#1.base)_2 - 1*ULTIMATE.start_main_~arr~0#1.offset - 4*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2021-12-21 22:04:56,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-21 22:04:56,208 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2021-12-21 22:04:56,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:56,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 22:04:56,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:56,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 22:04:56,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:56,348 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-21 22:04:56,348 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:56,399 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 [2021-12-21 22:04:56,413 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 25 transitions. Complement of second has 7 states. [2021-12-21 22:04:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:04:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:56,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-21 22:04:56,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-21 22:04:56,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:56,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2021-12-21 22:04:56,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:56,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 8 letters. [2021-12-21 22:04:56,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:56,421 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 25 transitions. [2021-12-21 22:04:56,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:04:56,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 24 transitions. [2021-12-21 22:04:56,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-21 22:04:56,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-21 22:04:56,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-12-21 22:04:56,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:04:56,426 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-21 22:04:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-12-21 22:04:56,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-12-21 22:04:56,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-12-21 22:04:56,428 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-12-21 22:04:56,429 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-12-21 22:04:56,429 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:04:56,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-12-21 22:04:56,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:04:56,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:04:56,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:04:56,432 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:04:56,433 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:04:56,433 INFO L791 eck$LassoCheckResult]: Stem: 236#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 237#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 240#L367 assume !(main_~length~0#1 < 1); 238#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 239#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 226#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 227#L371-4 main_~j~0#1 := 0; 241#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 232#L375-3 [2021-12-21 22:04:56,434 INFO L793 eck$LassoCheckResult]: Loop: 232#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 233#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 232#L375-3 [2021-12-21 22:04:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash 176705843, now seen corresponding path program 1 times [2021-12-21 22:04:56,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695142926] [2021-12-21 22:04:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,461 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:56,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2021-12-21 22:04:56,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14606920] [2021-12-21 22:04:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,480 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,485 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:56,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1984375400, now seen corresponding path program 1 times [2021-12-21 22:04:56,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533983216] [2021-12-21 22:04:56,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:56,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:56,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:04:56,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533983216] [2021-12-21 22:04:56,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533983216] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:04:56,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:04:56,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:04:56,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883326854] [2021-12-21 22:04:56,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:04:56,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:04:56,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:04:56,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:04:56,603 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:56,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:04:56,646 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-12-21 22:04:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 22:04:56,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-12-21 22:04:56,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:04:56,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 32 transitions. [2021-12-21 22:04:56,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-21 22:04:56,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-21 22:04:56,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2021-12-21 22:04:56,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:04:56,648 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-12-21 22:04:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2021-12-21 22:04:56,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2021-12-21 22:04:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:56,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-12-21 22:04:56,650 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-21 22:04:56,650 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-21 22:04:56,650 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 22:04:56,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-12-21 22:04:56,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:04:56,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:04:56,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:04:56,651 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:04:56,651 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:04:56,651 INFO L791 eck$LassoCheckResult]: Stem: 294#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 296#L367 assume !(main_~length~0#1 < 1); 288#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 289#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 282#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 283#L371-4 main_~j~0#1 := 0; 297#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 292#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 293#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 286#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 287#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 290#L375-3 [2021-12-21 22:04:56,652 INFO L793 eck$LassoCheckResult]: Loop: 290#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 291#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 290#L375-3 [2021-12-21 22:04:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash -19280312, now seen corresponding path program 2 times [2021-12-21 22:04:56,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152524500] [2021-12-21 22:04:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:56,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:56,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:04:56,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152524500] [2021-12-21 22:04:56,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152524500] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 22:04:56,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871619257] [2021-12-21 22:04:56,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-21 22:04:56,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 22:04:56,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:56,692 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 22:04:56,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-21 22:04:56,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-21 22:04:56,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-21 22:04:56,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 22:04:56,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:56,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 22:04:56,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871619257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:04:56,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 22:04:56,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-12-21 22:04:56,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866867010] [2021-12-21 22:04:56,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:04:56,807 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-21 22:04:56,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 2 times [2021-12-21 22:04:56,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945812073] [2021-12-21 22:04:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,813 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,817 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:56,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:04:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:04:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-21 22:04:56,844 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:56,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:04:56,899 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2021-12-21 22:04:56,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 22:04:56,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2021-12-21 22:04:56,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:04:56,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 22 transitions. [2021-12-21 22:04:56,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-21 22:04:56,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-21 22:04:56,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2021-12-21 22:04:56,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:04:56,902 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-21 22:04:56,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2021-12-21 22:04:56,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-12-21 22:04:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:56,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-12-21 22:04:56,904 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-21 22:04:56,904 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-21 22:04:56,904 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-21 22:04:56,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-12-21 22:04:56,905 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-21 22:04:56,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:04:56,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:04:56,905 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:04:56,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-21 22:04:56,906 INFO L791 eck$LassoCheckResult]: Stem: 397#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 398#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 401#L367 assume !(main_~length~0#1 < 1); 399#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 400#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 387#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 388#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 389#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 390#L371-4 main_~j~0#1 := 0; 402#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 395#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 396#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 391#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 392#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 393#L375-3 [2021-12-21 22:04:56,906 INFO L793 eck$LassoCheckResult]: Loop: 393#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 394#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 393#L375-3 [2021-12-21 22:04:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,906 INFO L85 PathProgramCache]: Analyzing trace with hash -744742010, now seen corresponding path program 1 times [2021-12-21 22:04:56,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638748399] [2021-12-21 22:04:56,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,920 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:56,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 3 times [2021-12-21 22:04:56,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232189985] [2021-12-21 22:04:56,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,936 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:56,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:56,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1562468139, now seen corresponding path program 1 times [2021-12-21 22:04:56,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:04:56,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5990586] [2021-12-21 22:04:56,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:04:56,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:04:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,952 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:04:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:04:56,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:04:57,240 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:04:57,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:04:57,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:04:57,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:04:57,240 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:04:57,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:57,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:04:57,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:04:57,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration5_Lasso [2021-12-21 22:04:57,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:04:57,241 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:04:57,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:04:57,593 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:04:57,594 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:04:57,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:57,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:57,595 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2021-12-21 22:04:57,602 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 [2021-12-21 22:04:57,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-21 22:04:57,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:57,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:57,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:57,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:57,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:57,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:57,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:57,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:57,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-21 22:04:57,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:57,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:57,632 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) [2021-12-21 22:04:57,633 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 [2021-12-21 22:04:57,634 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 [2021-12-21 22:04:57,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:57,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:04:57,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:57,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:57,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:57,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:04:57,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:04:57,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:57,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-21 22:04:57,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:57,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:57,659 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) [2021-12-21 22:04:57,661 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 [2021-12-21 22:04:57,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-21 22:04:57,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:57,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:57,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:57,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:57,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:04:57,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:04:57,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:04:57,691 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 [2021-12-21 22:04:57,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:57,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:57,692 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) [2021-12-21 22:04:57,694 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 [2021-12-21 22:04:57,695 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 [2021-12-21 22:04:57,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:04:57,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:04:57,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:04:57,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:04:57,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:04:57,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:04:57,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:04:57,746 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-21 22:04:57,746 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-21 22:04:57,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:04:57,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:04:57,752 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) [2021-12-21 22:04:57,754 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 [2021-12-21 22:04:57,754 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:04:57,773 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:04:57,773 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:04:57,773 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_2 Supporting invariants [] [2021-12-21 22:04:57,799 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 [2021-12-21 22:04:57,809 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-12-21 22:04:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:57,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:04:57,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:57,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:04:57,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:57,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:57,877 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 22:04:57,877 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:57,888 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 24 transitions. Complement of second has 7 states. [2021-12-21 22:04:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:04:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-21 22:04:57,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-21 22:04:57,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:57,890 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:04:57,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:57,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:04:57,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:57,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:04:57,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:57,961 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 22:04:57,961 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:57,972 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 24 transitions. Complement of second has 7 states. [2021-12-21 22:04:57,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:04:57,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-21 22:04:57,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-21 22:04:57,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:57,974 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:04:57,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:04:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:57,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:04:58,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:04:58,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:04:58,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:04:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:04:58,044 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 22:04:58,044 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:58,060 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 28 transitions. Complement of second has 6 states. [2021-12-21 22:04:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:04:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:04:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-12-21 22:04:58,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-21 22:04:58,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:58,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2021-12-21 22:04:58,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:58,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2021-12-21 22:04:58,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:04:58,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-12-21 22:04:58,065 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:04:58,065 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-12-21 22:04:58,065 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:04:58,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:04:58,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:04:58,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:04:58,066 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:04:58,066 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:04:58,066 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:04:58,066 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-21 22:04:58,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:04:58,066 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:04:58,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:04:58,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:04:58 BoogieIcfgContainer [2021-12-21 22:04:58,073 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:04:58,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:04:58,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:04:58,073 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:04:58,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:04:52" (3/4) ... [2021-12-21 22:04:58,076 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:04:58,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:04:58,077 INFO L158 Benchmark]: Toolchain (without parser) took 6046.13ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 61.9MB in the beginning and 35.3MB in the end (delta: 26.5MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2021-12-21 22:04:58,077 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:04:58,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.97ms. Allocated memory is still 100.7MB. Free memory was 61.7MB in the beginning and 67.9MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:04:58,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.11ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:04:58,080 INFO L158 Benchmark]: Boogie Preprocessor took 39.68ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:04:58,080 INFO L158 Benchmark]: RCFGBuilder took 322.87ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 54.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:04:58,080 INFO L158 Benchmark]: BuchiAutomizer took 5170.95ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 36.4MB in the end (delta: 18.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2021-12-21 22:04:58,081 INFO L158 Benchmark]: Witness Printer took 2.90ms. Allocated memory is still 123.7MB. Free memory was 36.4MB in the beginning and 35.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:04:58,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.97ms. Allocated memory is still 100.7MB. Free memory was 61.7MB in the beginning and 67.9MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.11ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.68ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.87ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 54.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5170.95ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 36.4MB in the end (delta: 18.2MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Witness Printer took 2.90ms. Allocated memory is still 123.7MB. Free memory was 36.4MB in the beginning and 35.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] + -4 * j + -1 * arr and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + j * 4] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 76 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital126 mio100 ax100 hnf100 lsp95 ukn84 mio100 lsp55 div100 bol100 ite100 ukn100 eq161 hnf92 smp95 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 22:04:58,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-21 22:04:58,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-12-21 22:04:58,529 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE