./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum04-1.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/loops/sum04-1.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 a02f2d90df049b7a5c6a05d9dfbf37e8076efe74 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 04:47:50,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:47:50,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:47:51,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:47:51,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:47:51,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:47:51,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:47:51,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:47:51,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:47:51,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:47:51,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:47:51,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:47:51,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:47:51,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:47:51,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:47:51,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:47:51,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:47:51,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:47:51,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:47:51,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:47:51,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:47:51,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:47:51,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:47:51,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:47:51,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:47:51,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:47:51,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:47:51,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:47:51,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:47:51,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:47:51,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:47:51,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:47:51,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:47:51,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:47:51,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:47:51,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:47:51,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:47:51,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:47:51,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:47:51,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:47:51,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:47:51,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:47:51,200 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:47:51,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:47:51,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:47:51,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:47:51,204 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:47:51,204 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:47:51,205 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:47:51,205 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:47:51,205 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:47:51,205 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:47:51,207 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:47:51,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:47:51,207 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:47:51,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:47:51,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:47:51,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:47:51,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:47:51,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:47:51,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:47:51,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:47:51,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:47:51,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:47:51,210 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:47:51,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:47:51,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:47:51,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:47:51,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:47:51,212 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:47:51,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:47:51,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:47:51,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:47:51,213 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:47:51,215 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:47:51,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02f2d90df049b7a5c6a05d9dfbf37e8076efe74 [2020-10-26 04:47:51,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:47:51,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:47:51,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:47:51,696 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:47:51,697 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:47:51,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum04-1.i [2020-10-26 04:47:51,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334ba4543/9705010f2bfc453f891e030ed56fc1bb/FLAGd580dc05d [2020-10-26 04:47:52,469 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:47:52,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i [2020-10-26 04:47:52,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334ba4543/9705010f2bfc453f891e030ed56fc1bb/FLAGd580dc05d [2020-10-26 04:47:52,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334ba4543/9705010f2bfc453f891e030ed56fc1bb [2020-10-26 04:47:52,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:47:52,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:47:52,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:47:52,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:47:52,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:47:52,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:47:52" (1/1) ... [2020-10-26 04:47:52,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738fc53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:52, skipping insertion in model container [2020-10-26 04:47:52,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:47:52" (1/1) ... [2020-10-26 04:47:52,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:47:52,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:47:53,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:47:53,147 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:47:53,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:47:53,183 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:47:53,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53 WrapperNode [2020-10-26 04:47:53,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:47:53,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:47:53,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:47:53,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:47:53,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:47:53,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:47:53,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:47:53,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:47:53,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:47:53,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:47:53,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:47:53,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:47:53,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (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 04:47:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:47:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:47:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:47:53,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:47:53,573 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:47:53,574 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-26 04:47:53,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:47:53 BoogieIcfgContainer [2020-10-26 04:47:53,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:47:53,577 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:47:53,578 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:47:53,582 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:47:53,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:47:53,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:47:52" (1/3) ... [2020-10-26 04:47:53,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@123225c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:47:53, skipping insertion in model container [2020-10-26 04:47:53,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:47:53,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (2/3) ... [2020-10-26 04:47:53,585 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@123225c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:47:53, skipping insertion in model container [2020-10-26 04:47:53,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:47:53,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:47:53" (3/3) ... [2020-10-26 04:47:53,588 INFO L373 chiAutomizerObserver]: Analyzing ICFG sum04-1.i [2020-10-26 04:47:53,645 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:47:53,646 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:47:53,646 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:47:53,647 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:47:53,647 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:47:53,647 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:47:53,647 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:47:53,648 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:47:53,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-26 04:47:53,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:47:53,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:47:53,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:47:53,748 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:47:53,749 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:47:53,749 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:47:53,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-26 04:47:53,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:47:53,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:47:53,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:47:53,754 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:47:53,755 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:47:53,773 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 6#L-1true havoc main_#res;havoc main_#t~post3, main_~i~0, main_~sn~0;havoc main_~i~0;main_~sn~0 := 0;main_~i~0 := 1; 8#L24-3true [2020-10-26 04:47:53,776 INFO L796 eck$LassoCheckResult]: Loop: 8#L24-3true assume !!(main_~i~0 <= 8); 15#L25true assume main_~i~0 < 4;main_~sn~0 := 2 + main_~sn~0; 10#L24-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8#L24-3true [2020-10-26 04:47:53,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:53,795 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-26 04:47:53,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:53,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809446303] [2020-10-26 04:47:53,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:53,943 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:53,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:53,982 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:53,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:53,985 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2020-10-26 04:47:53,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:53,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441584093] [2020-10-26 04:47:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:53,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,005 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:54,007 INFO L82 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2020-10-26 04:47:54,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:54,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847861394] [2020-10-26 04:47:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,049 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:54,120 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:47:54,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:47:54,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:47:54,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:47:54,121 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:47:54,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:47:54,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:47:54,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2020-10-26 04:47:54,123 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:47:54,123 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:47:54,145 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 04:47:54,155 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 04:47:54,173 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 04:47:54,271 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:47:54,272 INFO L404 LassoAnalysis]: Checking for nontermination... 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 04:47:54,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:47:54,283 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 04:47:54,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:47:54,335 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,370 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:47:54,371 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] 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 04:47:54,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:47:54,418 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 04:47:54,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:47:54,468 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,513 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:47:54,515 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:47:54,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:47:54,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:47:54,516 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:47:54,516 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:47:54,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:47:54,516 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:47:54,517 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2020-10-26 04:47:54,517 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:47:54,517 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:47:54,520 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 04:47:54,526 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 04:47:54,539 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 04:47:54,606 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:47:54,613 INFO L489 LassoAnalysis]: Using template 'affine'. 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 04:47:54,635 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 04:47:54,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:47:54,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:47:54,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:47:54,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:47:54,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:47:54,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:47:54,645 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 04:47:54,653 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) [2020-10-26 04:47:54,692 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 04:47:54,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:47:54,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:47:54,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:47:54,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:47:54,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:47:54,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:47:54,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,701 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:47:54,706 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:47:54,707 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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) [2020-10-26 04:47:54,716 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:47:54,716 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:47:54,716 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:47:54,717 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,760 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:47:54,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:47:54,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:47:54,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:47:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:47:54,829 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:47:54,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:47:54,848 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 04:47:54,867 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 04:47:54,869 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 4 states. [2020-10-26 04:47:54,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 4 states. Result 36 states and 50 transitions. Complement of second has 7 states. [2020-10-26 04:47:54,936 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 04:47:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:47:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2020-10-26 04:47:54,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 3 letters. [2020-10-26 04:47:54,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:54,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-26 04:47:54,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:54,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 2 letters. Loop has 6 letters. [2020-10-26 04:47:54,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:54,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 50 transitions. [2020-10-26 04:47:54,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:47:54,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 12 states and 15 transitions. [2020-10-26 04:47:54,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-26 04:47:54,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-26 04:47:54,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2020-10-26 04:47:54,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 04:47:54,958 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-10-26 04:47:55,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2020-10-26 04:47:55,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-10-26 04:47:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-26 04:47:55,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-10-26 04:47:55,025 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-26 04:47:55,025 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-26 04:47:55,026 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:47:55,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-10-26 04:47:55,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-26 04:47:55,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:47:55,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:47:55,028 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 04:47:55,028 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:47:55,028 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 91#L-1 havoc main_#res;havoc main_#t~post3, main_~i~0, main_~sn~0;havoc main_~i~0;main_~sn~0 := 0;main_~i~0 := 1; 92#L24-3 assume !!(main_~i~0 <= 8); 94#L25 [2020-10-26 04:47:55,029 INFO L796 eck$LassoCheckResult]: Loop: 94#L25 assume !(main_~i~0 < 4); 98#L24-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 93#L24-3 assume !!(main_~i~0 <= 8); 94#L25 [2020-10-26 04:47:55,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:55,030 INFO L82 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2020-10-26 04:47:55,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:55,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038908437] [2020-10-26 04:47:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:55,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:55,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:55,059 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:55,060 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2020-10-26 04:47:55,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:55,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472614127] [2020-10-26 04:47:55,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:55,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:55,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:55,072 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:55,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:55,073 INFO L82 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2020-10-26 04:47:55,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:55,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26739509] [2020-10-26 04:47:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:47:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:47:55,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26739509] [2020-10-26 04:47:55,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:47:55,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:47:55,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576219153] [2020-10-26 04:47:55,163 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:47:55,163 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:47:55,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:47:55,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:47:55,164 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:47:55,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,165 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:47:55,165 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:47:55,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2020-10-26 04:47:55,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:47:55,165 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:47:55,168 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 04:47:55,173 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 04:47:55,209 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:47:55,210 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:47:55,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:47:55,222 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:47:55,223 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:47:55,256 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 04:47:55,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:47:55,307 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,347 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:47:55,350 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:47:55,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:47:55,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:47:55,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:47:55,351 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:47:55,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,351 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:47:55,351 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:47:55,351 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2020-10-26 04:47:55,351 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:47:55,351 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:47:55,354 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 04:47:55,364 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 04:47:55,402 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:47:55,402 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 04:47:55,407 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 04:47:55,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:47:55,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:47:55,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:47:55,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:47:55,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:47:55,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:47:55,414 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:47:55,417 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:47:55,418 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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 04:47:55,423 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:47:55,424 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:47:55,424 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:47:55,424 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 15 Supporting invariants [] Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,455 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:47:55,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:47:55,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:47:55,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:47:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:47:55,495 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:47:55,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:47:55,537 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 04:47:55,538 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 04:47:55,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-26 04:47:55,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 18 states and 22 transitions. Complement of second has 6 states. [2020-10-26 04:47:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:47:55,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 04:47:55,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2020-10-26 04:47:55,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2020-10-26 04:47:55,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:55,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-26 04:47:55,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:55,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2020-10-26 04:47:55,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:55,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2020-10-26 04:47:55,570 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:47:55,570 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-10-26 04:47:55,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:47:55,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:47:55,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:47:55,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:47:55,571 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,571 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:47:55,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:47:55,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:47:55,576 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-10-26 04:47:55,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:47:55,578 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-26 04:47:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 04:47:55,579 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-26 04:47:55,579 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:47:55,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:47:55,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:47:55,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:47:55,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:47:55,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:47:55,580 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,580 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,580 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,580 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 04:47:55,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:47:55,580 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:47:55,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:47:55,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:47:55 BoogieIcfgContainer [2020-10-26 04:47:55,586 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:47:55,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:47:55,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:47:55,587 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:47:55,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:47:53" (3/4) ... [2020-10-26 04:47:55,591 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:47:55,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:47:55,594 INFO L168 Benchmark]: Toolchain (without parser) took 2752.96 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 24.5 MB in the beginning and 33.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,594 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 44.0 MB. Free memory was 31.3 MB in the beginning and 31.2 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.85 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 22.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.31 ms. Allocated memory is still 44.0 MB. Free memory was 22.6 MB in the beginning and 21.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,597 INFO L168 Benchmark]: Boogie Preprocessor took 24.83 ms. Allocated memory is still 44.0 MB. Free memory was 21.3 MB in the beginning and 20.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,598 INFO L168 Benchmark]: RCFGBuilder took 327.33 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 30.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,599 INFO L168 Benchmark]: BuchiAutomizer took 2009.21 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 33.6 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,599 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 67.1 MB. Free memory is still 33.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 44.0 MB. Free memory was 31.3 MB in the beginning and 31.2 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.85 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 22.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.31 ms. Allocated memory is still 44.0 MB. Free memory was 22.6 MB in the beginning and 21.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.83 ms. Allocated memory is still 44.0 MB. Free memory was 21.3 MB in the beginning and 20.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 327.33 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.2 MB in the beginning and 30.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2009.21 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 33.6 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.10 ms. Allocated memory is still 67.1 MB. Free memory is still 33.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 7 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 15 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 14 SDslu, 12 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf96 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...