./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/add_last-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-memory-alloca/add_last-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 83d173a249101326b0d087df992e67eaa15fd4df .................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:19:55,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:19:55,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:19:55,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:19:55,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:19:55,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:19:55,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:19:55,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:19:55,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:19:55,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:19:55,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:19:55,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:19:55,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:19:55,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:19:55,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:19:55,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:19:55,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:19:55,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:19:55,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:19:55,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:19:55,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:19:55,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:19:55,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:19:55,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:19:55,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:19:55,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:19:55,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:19:55,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:19:55,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:19:55,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:19:55,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:19:55,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:19:55,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:19:55,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:19:55,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:19:55,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:19:55,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:19:55,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:19:55,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:19:55,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:19:55,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:19:55,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:19:55,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:19:55,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:19:55,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:19:55,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:19:55,927 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:19:55,927 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:19:55,927 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:19:55,928 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:19:55,928 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:19:55,928 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:19:55,929 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:19:55,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:19:55,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:19:55,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:19:55,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:19:55,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:19:55,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:19:55,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:19:55,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:19:55,931 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:19:55,931 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:19:55,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:19:55,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:19:55,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:19:55,932 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:19:55,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:19:55,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:19:55,933 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:19:55,933 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:19:55,935 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:19:55,935 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83d173a249101326b0d087df992e67eaa15fd4df [2020-10-26 04:19:56,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:19:56,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:19:56,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:19:56,381 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:19:56,382 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:19:56,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/add_last-alloca-2.i [2020-10-26 04:19:56,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2635652f/8f6dc6b92f1245cab19ac28f0e2b616b/FLAGdefed1177 [2020-10-26 04:19:57,271 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:19:57,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/add_last-alloca-2.i [2020-10-26 04:19:57,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2635652f/8f6dc6b92f1245cab19ac28f0e2b616b/FLAGdefed1177 [2020-10-26 04:19:57,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2635652f/8f6dc6b92f1245cab19ac28f0e2b616b [2020-10-26 04:19:57,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:19:57,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:19:57,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:19:57,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:19:57,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:19:57,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:19:57" (1/1) ... [2020-10-26 04:19:57,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7be397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:57, skipping insertion in model container [2020-10-26 04:19:57,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:19:57" (1/1) ... [2020-10-26 04:19:57,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:19:57,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:19:57,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:19:57,930 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:19:58,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:19:58,078 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:19:58,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58 WrapperNode [2020-10-26 04:19:58,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:19:58,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:19:58,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:19:58,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:19:58,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:19:58,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:19:58,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:19:58,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:19:58,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (1/1) ... [2020-10-26 04:19:58,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:19:58,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:19:58,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:19:58,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:19:58,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (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 04:19:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 04:19:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 04:19:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:19:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 04:19:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:19:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:19:58,534 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:19:58,535 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:19:58,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:19:58 BoogieIcfgContainer [2020-10-26 04:19:58,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:19:58,538 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:19:58,538 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:19:58,542 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:19:58,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:19:58,544 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:19:57" (1/3) ... [2020-10-26 04:19:58,545 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f449421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:19:58, skipping insertion in model container [2020-10-26 04:19:58,545 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:19:58,545 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:19:58" (2/3) ... [2020-10-26 04:19:58,546 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f449421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:19:58, skipping insertion in model container [2020-10-26 04:19:58,546 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:19:58,546 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:19:58" (3/3) ... [2020-10-26 04:19:58,548 INFO L373 chiAutomizerObserver]: Analyzing ICFG add_last-alloca-2.i [2020-10-26 04:19:58,646 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:19:58,647 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:19:58,647 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:19:58,647 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:19:58,647 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:19:58,648 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:19:58,648 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:19:58,648 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:19:58,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:19:58,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:19:58,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:58,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:58,693 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:58,694 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:19:58,694 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:19:58,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-26 04:19:58,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:19:58,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:19:58,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:19:58,697 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-26 04:19:58,697 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:19:58,705 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem6, main_#t~mem7, main_#t~post8.base, main_#t~post8.offset, main_#t~mem4, main_#t~mem5, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 11#L550true assume !(main_~length~0 < 1); 4#L550-2true call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 8#L552true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset; 9#L554-3true [2020-10-26 04:19:58,705 INFO L796 eck$LassoCheckResult]: Loop: 9#L554-3true call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem5 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 5#L554-1true assume !!(main_#t~mem4 != main_#t~mem5);havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem6 + main_#t~mem7, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem7;havoc main_#t~mem6;main_#t~post8.base, main_#t~post8.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post8.base, 4 + main_#t~post8.offset;havoc main_#t~post8.base, main_#t~post8.offset; 9#L554-3true [2020-10-26 04:19:58,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:58,713 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2020-10-26 04:19:58,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:58,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864676675] [2020-10-26 04:19:58,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:58,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:58,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:58,894 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:58,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:58,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 1 times [2020-10-26 04:19:58,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:58,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234915052] [2020-10-26 04:19:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:58,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:58,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:58,977 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:58,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:19:58,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815470, now seen corresponding path program 1 times [2020-10-26 04:19:58,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:19:58,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846680934] [2020-10-26 04:19:58,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:19:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:59,040 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:19:59,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:19:59,069 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:19:59,340 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-10-26 04:19:59,395 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:19:59,396 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:19:59,396 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:19:59,396 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:19:59,396 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:19:59,397 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:19:59,397 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:19:59,397 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:19:59,397 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-2.i_Iteration1_Lasso [2020-10-26 04:19:59,397 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:19:59,397 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:19:59,424 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 04:19:59,434 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 04:19:59,696 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-26 04:19:59,698 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 04:19:59,701 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 04:19:59,704 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 04:19:59,707 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 04:19:59,710 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 04:19:59,713 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 04:19:59,717 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 04:19:59,719 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 04:19:59,723 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 04:19:59,726 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 04:19:59,729 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 04:19:59,732 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 04:19:59,735 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 04:19:59,738 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 04:20:00,134 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:20:00,139 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:20:00,147 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 04:20:00,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:20:00,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:20:00,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:20:00,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:20:00,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:20:00,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:20:00,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:20:00,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:20:00,195 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 04:20:00,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:20:00,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:20:00,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:20:00,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:20:00,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:20:00,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:20:00,218 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:20:00,262 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 04:20:00,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:20:00,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:20:00,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:20:00,265 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-26 04:20:00,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:20:00,267 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:20:00,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:20:00,271 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) [2020-10-26 04:20:00,307 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 04:20:00,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:20:00,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:20:00,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:20:00,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:20:00,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:20:00,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:20:00,328 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:20:00,366 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 04:20:00,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:20:00,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:20:00,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:20:00,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:20:00,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:20:00,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:20:00,420 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:20:00,451 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-26 04:20:00,451 INFO L444 ModelExtractionUtils]: 10 out of 25 variables were initially zero. Simplification set additionally 12 variables to zero. 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) [2020-10-26 04:20:00,457 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:20:00,467 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 04:20:00,467 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:20:00,468 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0.offset, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1) = -1*ULTIMATE.start_main_~a~0.offset + 2*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1 Supporting invariants [] [2020-10-26 04:20:00,517 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2020-10-26 04:20:00,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 04:20:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:20:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:20:00,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:20:00,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:20:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:20:00,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-26 04:20:00,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:20:00,634 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 04:20:00,652 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 04:20:00,654 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-10-26 04:20:00,722 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 24 states and 27 transitions. Complement of second has 5 states. [2020-10-26 04:20:00,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 04:20:00,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:20:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-10-26 04:20:00,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-26 04:20:00,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:20:00,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-26 04:20:00,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:20:00,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-26 04:20:00,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:20:00,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2020-10-26 04:20:00,735 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:20:00,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-10-26 04:20:00,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:20:00,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:20:00,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:20:00,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:20:00,742 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:20:00,742 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:20:00,742 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:20:00,743 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:20:00,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:20:00,743 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:20:00,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:20:00,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:20:00 BoogieIcfgContainer [2020-10-26 04:20:00,751 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:20:00,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:20:00,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:20:00,752 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:20:00,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:19:58" (3/4) ... [2020-10-26 04:20:00,757 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:20:00,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:20:00,759 INFO L168 Benchmark]: Toolchain (without parser) took 3245.59 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 28.5 MB in the beginning and 29.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:20:00,760 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory is still 20.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:20:00,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.16 ms. Allocated memory is still 52.4 MB. Free memory was 27.9 MB in the beginning and 32.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:20:00,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.77 ms. Allocated memory is still 52.4 MB. Free memory was 32.5 MB in the beginning and 30.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:20:00,763 INFO L168 Benchmark]: Boogie Preprocessor took 60.36 ms. Allocated memory is still 52.4 MB. Free memory was 30.9 MB in the beginning and 29.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:20:00,764 INFO L168 Benchmark]: RCFGBuilder took 347.63 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 29.4 MB in the end (delta: 141.6 kB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:20:00,765 INFO L168 Benchmark]: BuchiAutomizer took 2213.12 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 29.2 MB in the beginning and 29.9 MB in the end (delta: -741.0 kB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:20:00,766 INFO L168 Benchmark]: Witness Printer took 5.84 ms. Allocated memory is still 75.5 MB. Free memory is still 29.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:20:00,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory is still 20.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 558.16 ms. Allocated memory is still 52.4 MB. Free memory was 27.9 MB in the beginning and 32.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.77 ms. Allocated memory is still 52.4 MB. Free memory was 32.5 MB in the beginning and 30.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.36 ms. Allocated memory is still 52.4 MB. Free memory was 30.9 MB in the beginning and 29.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 347.63 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 29.4 MB in the end (delta: 141.6 kB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2213.12 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 29.2 MB in the beginning and 29.9 MB in the end (delta: -741.0 kB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.84 ms. Allocated memory is still 75.5 MB. Free memory is still 29.9 MB. 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * a + 2 * unknown-#length-unknown[arr] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 17 SDslu, 4 SDs, 0 SdLazy, 3 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital145 mio100 ax112 hnf99 lsp85 ukn81 mio100 lsp53 div100 bol100 ite100 ukn100 eq172 hnf90 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 4 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...