./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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/array-memsafety/mult_array-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash b9551eac17e9ca0a42612f73eb01545dde991582 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 06:02:29,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 06:02:29,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 06:02:29,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 06:02:29,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 06:02:29,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 06:02:29,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 06:02:29,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 06:02:29,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 06:02:29,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 06:02:29,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 06:02:29,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 06:02:29,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 06:02:29,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 06:02:29,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 06:02:29,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 06:02:29,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 06:02:29,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 06:02:29,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 06:02:29,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 06:02:29,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 06:02:29,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 06:02:29,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 06:02:29,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 06:02:29,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 06:02:29,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 06:02:29,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 06:02:29,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 06:02:29,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 06:02:29,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 06:02:29,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 06:02:29,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 06:02:29,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 06:02:29,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 06:02:29,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 06:02:29,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 06:02:29,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 06:02:29,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 06:02:29,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 06:02:29,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 06:02:29,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 06:02:29,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 06:02:29,780 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 06:02:29,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 06:02:29,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 06:02:29,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 06:02:29,783 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 06:02:29,783 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 06:02:29,783 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 06:02:29,784 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 06:02:29,784 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 06:02:29,784 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 06:02:29,785 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 06:02:29,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 06:02:29,785 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 06:02:29,785 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 06:02:29,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 06:02:29,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 06:02:29,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 06:02:29,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 06:02:29,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 06:02:29,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 06:02:29,787 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 06:02:29,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 06:02:29,788 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 06:02:29,788 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 06:02:29,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 06:02:29,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 06:02:29,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 06:02:29,789 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 06:02:29,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 06:02:29,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 06:02:29,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 06:02:29,790 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 06:02:29,791 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 06:02:29,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9551eac17e9ca0a42612f73eb01545dde991582 [2020-10-26 06:02:30,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 06:02:30,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 06:02:30,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 06:02:30,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 06:02:30,244 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 06:02:30,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2020-10-26 06:02:30,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a000daf7c/360e6bc988164b94841e872349357308/FLAG64d614d7d [2020-10-26 06:02:31,002 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 06:02:31,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/mult_array-alloca-1.i [2020-10-26 06:02:31,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a000daf7c/360e6bc988164b94841e872349357308/FLAG64d614d7d [2020-10-26 06:02:31,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a000daf7c/360e6bc988164b94841e872349357308 [2020-10-26 06:02:31,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 06:02:31,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 06:02:31,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:31,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 06:02:31,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 06:02:31,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2300c217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31, skipping insertion in model container [2020-10-26 06:02:31,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 06:02:31,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 06:02:31,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:31,733 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 06:02:31,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:02:31,868 INFO L208 MainTranslator]: Completed translation [2020-10-26 06:02:31,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31 WrapperNode [2020-10-26 06:02:31,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 06:02:31,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:31,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 06:02:31,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 06:02:31,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 06:02:31,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 06:02:31,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 06:02:31,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 06:02:31,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... [2020-10-26 06:02:31,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 06:02:31,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 06:02:31,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 06:02:31,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 06:02:31,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 06:02:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 06:02:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 06:02:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 06:02:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 06:02:32,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 06:02:32,376 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 06:02:32,377 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-26 06:02:32,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:32 BoogieIcfgContainer [2020-10-26 06:02:32,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 06:02:32,380 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 06:02:32,380 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 06:02:32,384 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 06:02:32,385 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:32,385 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 06:02:31" (1/3) ... [2020-10-26 06:02:32,386 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d054ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:32, skipping insertion in model container [2020-10-26 06:02:32,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:32,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:02:31" (2/3) ... [2020-10-26 06:02:32,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d054ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:02:32, skipping insertion in model container [2020-10-26 06:02:32,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:02:32,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:32" (3/3) ... [2020-10-26 06:02:32,389 INFO L373 chiAutomizerObserver]: Analyzing ICFG mult_array-alloca-1.i [2020-10-26 06:02:32,458 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 06:02:32,459 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 06:02:32,459 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 06:02:32,459 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 06:02:32,459 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 06:02:32,459 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 06:02:32,460 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 06:02:32,460 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 06:02:32,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-26 06:02:32,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:02:32,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:32,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:32,506 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:32,506 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:32,506 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 06:02:32,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-26 06:02:32,509 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:02:32,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:02:32,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:02:32,509 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:02:32,510 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:02:32,519 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 3#L515true assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 5#L515-2true main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 16#L517true assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 4#L517-2true call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 10#L520true assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 14#L521-3true [2020-10-26 06:02:32,519 INFO L796 eck$LassoCheckResult]: Loop: 14#L521-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 12#L521-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 14#L521-3true [2020-10-26 06:02:32,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:32,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815374, now seen corresponding path program 1 times [2020-10-26 06:02:32,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:32,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192273557] [2020-10-26 06:02:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:32,650 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 06:02:32,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883310121] [2020-10-26 06:02:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:02:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:32,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:32,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:32,983 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:32,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:32,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-10-26 06:02:32,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:32,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961570005] [2020-10-26 06:02:32,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:33,010 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:33,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:33,030 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:33,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:02:33,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787760, now seen corresponding path program 1 times [2020-10-26 06:02:33,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:02:33,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586116185] [2020-10-26 06:02:33,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:02:33,042 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 06:02:33,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514148966] [2020-10-26 06:02:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:02:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:33,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:02:33,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:02:33,496 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:02:43,371 WARN L193 SmtUtils]: Spent 9.80 s on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-10-26 06:02:45,809 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 56 [2020-10-26 06:02:45,827 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:02:45,828 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:02:45,828 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:02:45,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:02:45,829 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:02:45,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:02:45,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:02:45,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:02:45,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration1_Lasso [2020-10-26 06:02:45,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:02:45,830 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:02:45,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:02:45,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:06,931 WARN L193 SmtUtils]: Spent 20.60 s on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-10-26 06:03:07,140 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-26 06:03:07,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:07,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:07,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:13,559 WARN L193 SmtUtils]: Spent 6.34 s on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-10-26 06:03:25,529 WARN L193 SmtUtils]: Spent 11.82 s on a formula simplification that was a NOOP. DAG size: 37 [2020-10-26 06:03:25,655 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:03:25,662 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:25,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:25,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:25,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:25,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:25,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:25,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:25,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:25,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:25,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:25,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:25,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:25,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:25,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:25,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:25,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:25,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:25,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:25,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:25,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:25,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:25,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:25,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:25,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:25,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:25,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:25,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:25,792 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:25,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:25,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:25,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:25,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:25,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:25,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:25,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:25,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:25,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:25,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:25,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:25,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:25,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:25,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:25,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:25,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:25,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:25,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:25,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:25,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:25,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:25,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:25,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:25,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:25,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:25,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:25,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:25,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:25,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:25,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:25,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:25,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:25,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:26,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:26,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:26,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:26,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:26,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:26,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:26,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:26,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:26,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:26,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:26,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:26,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:26,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:26,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:26,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:26,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:26,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:26,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:26,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:26,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:26,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:26,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:26,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:26,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:26,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:26,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:26,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:26,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:26,136 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:26,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:26,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:26,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:26,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:26,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:26,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:26,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:26,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:26,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:26,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:26,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:26,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:26,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:26,204 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:03:26,272 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-10-26 06:03:26,272 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:26,281 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:26,285 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:03:26,285 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:03:26,287 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0.offset, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~arr~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1 - 4*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-26 06:03:26,362 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-26 06:03:26,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:03:26,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:26,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:03:26,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:26,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:03:26,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:03:26,495 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 [2020-10-26 06:03:26,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-10-26 06:03:26,602 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2020-10-26 06:03:26,603 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 [2020-10-26 06:03:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:03:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-26 06:03:26,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-26 06:03:26,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:26,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-26 06:03:26,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:26,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-26 06:03:26,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:26,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2020-10-26 06:03:26,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:03:26,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 17 transitions. [2020-10-26 06:03:26,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-26 06:03:26,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-26 06:03:26,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-10-26 06:03:26,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:03:26,630 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-26 06:03:26,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-10-26 06:03:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-26 06:03:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-26 06:03:26,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-10-26 06:03:26,664 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-26 06:03:26,664 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-26 06:03:26,664 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 06:03:26,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-10-26 06:03:26,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:03:26,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:03:26,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:03:26,672 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:03:26,672 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:03:26,673 INFO L794 eck$LassoCheckResult]: Stem: 133#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 130#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 134#L515-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 140#L517 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 135#L517-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 136#L520 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 137#L521-3 assume !(main_~i~0 < main_~length~0); 141#L521-4 main_~j~0 := 0; 131#L524-3 [2020-10-26 06:03:26,674 INFO L796 eck$LassoCheckResult]: Loop: 131#L524-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 132#L524-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 131#L524-3 [2020-10-26 06:03:26,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:26,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787702, now seen corresponding path program 1 times [2020-10-26 06:03:26,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:26,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769950414] [2020-10-26 06:03:26,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:26,697 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 06:03:26,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191697572] [2020-10-26 06:03:26,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:03:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:26,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 06:03:26,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:03:26,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769950414] [2020-10-26 06:03:26,852 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-26 06:03:26,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191697572] [2020-10-26 06:03:26,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:03:26,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 06:03:26,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581477215] [2020-10-26 06:03:26,856 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:03:26,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:26,858 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 1 times [2020-10-26 06:03:26,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:26,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609090473] [2020-10-26 06:03:26,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:26,871 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 06:03:26,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202744160] [2020-10-26 06:03:26,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:03:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:26,920 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:26,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:26,936 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:27,076 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-26 06:03:28,967 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 127 DAG size of output: 90 [2020-10-26 06:03:28,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:03:28,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 06:03:28,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 06:03:28,975 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-26 06:03:29,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:03:29,861 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-10-26 06:03:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 06:03:29,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-10-26 06:03:29,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:03:29,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2020-10-26 06:03:29,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-26 06:03:29,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-26 06:03:29,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2020-10-26 06:03:29,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:03:29,865 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-10-26 06:03:29,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2020-10-26 06:03:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-10-26 06:03:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-26 06:03:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-26 06:03:29,866 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-26 06:03:29,866 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-26 06:03:29,867 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 06:03:29,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-10-26 06:03:29,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:03:29,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:03:29,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:03:29,868 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:03:29,868 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:03:29,868 INFO L794 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 187#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 188#L515 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 192#L515-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 198#L517 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 193#L517-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 194#L520 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 195#L521-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 196#L521-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 197#L521-3 assume !(main_~i~0 < main_~length~0); 199#L521-4 main_~j~0 := 0; 189#L524-3 [2020-10-26 06:03:29,868 INFO L796 eck$LassoCheckResult]: Loop: 189#L524-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 190#L524-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 189#L524-3 [2020-10-26 06:03:29,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:29,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1507295208, now seen corresponding path program 1 times [2020-10-26 06:03:29,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:29,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499657003] [2020-10-26 06:03:29,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:29,876 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 06:03:29,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796682053] [2020-10-26 06:03:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:03:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:29,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:29,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:29,966 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:29,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:29,967 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 2 times [2020-10-26 06:03:29,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:29,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146950227] [2020-10-26 06:03:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:29,981 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 06:03:29,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47418459] [2020-10-26 06:03:29,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:03:30,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-26 06:03:30,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-26 06:03:30,032 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:30,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:30,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:30,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:30,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1106714758, now seen corresponding path program 1 times [2020-10-26 06:03:30,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:03:30,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126377952] [2020-10-26 06:03:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:03:30,052 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 06:03:30,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241410018] [2020-10-26 06:03:30,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:03:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:30,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:03:30,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:03:30,143 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:03:30,315 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-10-26 06:03:31,953 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-26 06:03:33,223 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2020-10-26 06:03:33,534 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-26 06:03:33,543 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:03:33,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:03:33,544 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:03:33,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:03:33,544 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:03:33,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:33,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:03:33,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:03:33,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-1.i_Iteration3_Lasso [2020-10-26 06:03:33,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:03:33,544 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:03:33,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:33,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:34,730 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-26 06:03:35,348 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-26 06:03:35,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:35,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:35,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:03:45,330 WARN L193 SmtUtils]: Spent 9.91 s on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2020-10-26 06:03:45,545 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-10-26 06:03:46,020 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-10-26 06:03:46,229 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-26 06:03:46,389 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:03:46,392 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:46,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:46,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:46,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:46,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:46,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:46,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:46,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:46,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:46,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:46,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:46,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:46,496 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:46,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:46,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:46,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,564 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:46,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:46,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:03:46,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:03:46,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:03:46,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:46,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:03:46,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:46,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:03:46,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:03:46,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:46,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:03:46,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:03:46,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:03:46,715 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 06:03:46,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:03:46,754 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-26 06:03:46,754 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-26 06:03:46,817 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:03:46,999 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-10-26 06:03:46,999 INFO L444 ModelExtractionUtils]: 40 out of 61 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:03:47,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:03:47,015 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-10-26 06:03:47,015 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:03:47,015 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1, ULTIMATE.start_main_~arr2~0.offset) = -4*ULTIMATE.start_main_~j~0 + 1*v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1 - 1*ULTIMATE.start_main_~arr2~0.offset Supporting invariants [] [2020-10-26 06:03:47,209 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2020-10-26 06:03:47,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:03:47,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:03:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:47,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:03:47,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:03:47,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:03:47,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:03:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:03:47,282 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 [2020-10-26 06:03:47,282 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-26 06:03:47,318 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 19 transitions. Complement of second has 4 states. [2020-10-26 06:03:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 06:03:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:03:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-10-26 06:03:47,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-26 06:03:47,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:47,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-26 06:03:47,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:47,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2020-10-26 06:03:47,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:03:47,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-10-26 06:03:47,323 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:03:47,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-26 06:03:47,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 06:03:47,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 06:03:47,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 06:03:47,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:03:47,324 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:03:47,324 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:03:47,325 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:03:47,325 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 06:03:47,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 06:03:47,325 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:03:47,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 06:03:47,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 06:03:47 BoogieIcfgContainer [2020-10-26 06:03:47,332 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 06:03:47,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 06:03:47,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 06:03:47,333 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 06:03:47,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:02:32" (3/4) ... [2020-10-26 06:03:47,338 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 06:03:47,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 06:03:47,340 INFO L168 Benchmark]: Toolchain (without parser) took 76043.95 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.1 MB in the beginning and 17.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:47,341 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory was 21.3 MB in the beginning and 21.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:03:47,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.58 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 27.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:47,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.87 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 25.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:03:47,343 INFO L168 Benchmark]: Boogie Preprocessor took 37.86 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 24.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:47,343 INFO L168 Benchmark]: RCFGBuilder took 417.48 ms. Allocated memory is still 50.3 MB. Free memory was 24.0 MB in the beginning and 22.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:47,344 INFO L168 Benchmark]: BuchiAutomizer took 74952.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 21.8 MB in the beginning and 18.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-26 06:03:47,345 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 60.8 MB. Free memory was 18.3 MB in the beginning and 17.8 MB in the end (delta: 439.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:03:47,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory was 21.3 MB in the beginning and 21.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 565.58 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 27.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.87 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 25.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.86 ms. Allocated memory is still 50.3 MB. Free memory was 25.3 MB in the beginning and 24.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 417.48 ms. Allocated memory is still 50.3 MB. Free memory was 24.0 MB in the beginning and 22.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 74952.84 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 21.8 MB in the beginning and 18.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.44 ms. Allocated memory is still 60.8 MB. Free memory was 18.3 MB in the beginning and 17.8 MB in the end (delta: 439.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * arr + unknown-#length-unknown[arr] + -4 * i and consists of 5 locations. One deterministic module has affine ranking function -4 * j + unknown-#length-unknown[arr2] + -1 * arr2 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 74.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 73.4s. Construction of modules took 0.9s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 41 SDslu, 17 SDs, 0 SdLazy, 30 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital301 mio100 ax108 hnf98 lsp141 ukn49 mio100 lsp64 div179 bol100 ite100 ukn100 eq141 hnf95 smp70 dnf113 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 305ms VariablesStem: 11 VariablesLoop: 10 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...