./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi.c --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-crafted/Benghazi.c -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 2b89ce5b96ce55081609675201b2a9a116c2941a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 04:13:18,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:13:18,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:13:18,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:13:18,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:13:18,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:13:18,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:13:18,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:13:18,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:13:18,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:13:18,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:13:18,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:13:18,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:13:18,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:13:18,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:13:18,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:13:18,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:13:18,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:13:18,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:13:18,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:13:18,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:13:18,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:13:18,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:13:18,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:13:18,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:13:18,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:13:18,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:13:18,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:13:18,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:13:18,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:13:18,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:13:18,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:13:18,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:13:18,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:13:18,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:13:18,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:13:18,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:13:18,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:13:18,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:13:18,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:13:18,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:13:18,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-26 04:13:18,397 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:13:18,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:13:18,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:13:18,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:13:18,402 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:13:18,402 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:13:18,402 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:13:18,402 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:13:18,403 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:13:18,403 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:13:18,404 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:13:18,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:13:18,405 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:13:18,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:13:18,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:13:18,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:13:18,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:13:18,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:13:18,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:13:18,407 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:13:18,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:13:18,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:13:18,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:13:18,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:13:18,408 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:13:18,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:13:18,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:13:18,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:13:18,409 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:13:18,411 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:13:18,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b89ce5b96ce55081609675201b2a9a116c2941a [2020-10-26 04:13:18,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:13:18,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:13:18,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:13:18,846 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:13:18,847 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:13:18,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi.c [2020-10-26 04:13:18,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1959d18d8/9f91618dc71942119f14520389fe80f1/FLAGe1aaeb800 [2020-10-26 04:13:19,524 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:13:19,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi.c [2020-10-26 04:13:19,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1959d18d8/9f91618dc71942119f14520389fe80f1/FLAGe1aaeb800 [2020-10-26 04:13:19,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1959d18d8/9f91618dc71942119f14520389fe80f1 [2020-10-26 04:13:19,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:13:19,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:13:19,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:13:19,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:13:19,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:13:19,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:13:19" (1/1) ... [2020-10-26 04:13:19,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b28c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:19, skipping insertion in model container [2020-10-26 04:13:19,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:13:19" (1/1) ... [2020-10-26 04:13:19,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:13:19,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:13:20,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:13:20,114 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:13:20,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:13:20,141 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:13:20,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20 WrapperNode [2020-10-26 04:13:20,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:13:20,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:13:20,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:13:20,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:13:20,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:13:20,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:13:20,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:13:20,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:13:20,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (1/1) ... [2020-10-26 04:13:20,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:13:20,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:13:20,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:13:20,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:13:20,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (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 04:13:20,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:13:20,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:13:20,431 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:13:20,432 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:13:20,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:13:20 BoogieIcfgContainer [2020-10-26 04:13:20,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:13:20,435 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:13:20,435 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:13:20,439 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:13:20,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:13:20,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:13:19" (1/3) ... [2020-10-26 04:13:20,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f356c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:13:20, skipping insertion in model container [2020-10-26 04:13:20,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:13:20,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:13:20" (2/3) ... [2020-10-26 04:13:20,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f356c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:13:20, skipping insertion in model container [2020-10-26 04:13:20,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:13:20,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:13:20" (3/3) ... [2020-10-26 04:13:20,444 INFO L373 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2020-10-26 04:13:20,497 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:13:20,497 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:13:20,498 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:13:20,498 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:13:20,498 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:13:20,498 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:13:20,498 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:13:20,499 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:13:20,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-26 04:13:20,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:13:20,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:13:20,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:13:20,540 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:13:20,540 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:13:20,541 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:13:20,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-26 04:13:20,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-26 04:13:20,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:13:20,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:13:20,543 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-26 04:13:20,543 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-26 04:13:20,552 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~d1~0 := 73;main_~d2~0 := 74;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L22-2true [2020-10-26 04:13:20,553 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L22-2true [2020-10-26 04:13:20,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:20,561 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-26 04:13:20,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:13:20,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603242851] [2020-10-26 04:13:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:13:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:20,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:20,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:20,694 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:13:20,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:20,696 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-26 04:13:20,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:13:20,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773505162] [2020-10-26 04:13:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:13:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:20,720 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:20,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:20,730 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:13:20,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:20,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-26 04:13:20,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:13:20,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840405732] [2020-10-26 04:13:20,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:13:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:20,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:13:20,773 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:13:20,778 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:13:20,936 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-10-26 04:13:21,017 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:13:21,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:13:21,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:13:21,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:13:21,019 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:13:21,019 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:21,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:13:21,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:13:21,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2020-10-26 04:13:21,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:13:21,021 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:13:21,045 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 04:13:21,054 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 04:13:21,058 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 04:13:21,171 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:13:21,172 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 04:13:21,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:13:21,181 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 [2020-10-26 04:13:21,194 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:13:21,195 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:21,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:13:21,247 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:13:21,257 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:13:21,257 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 04:13:21,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:13:21,301 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:21,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:13:21,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 04:13:26,557 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:13:26,560 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:13:26,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:13:26,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:13:26,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:13:26,561 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:13:26,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:26,561 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:13:26,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:13:26,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2020-10-26 04:13:26,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:13:26,563 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:13:26,565 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 04:13:26,570 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 04:13:26,574 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 04:13:26,703 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:13:26,709 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 04:13:26,716 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 04:13:26,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:26,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:26,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:26,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:13:26,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:13:26,726 INFO L402 nArgumentSynthesizer]: A total of 2 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 04:13:26,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:26,769 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 04:13:26,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:26,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:26,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:26,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:13:26,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 04:13:26,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 04:13:26,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:13:26,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:13:26,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:26,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:13:26,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:26,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:26,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:13:26,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:13:26,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:26,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-26 04:13:26,860 INFO L489 LassoAnalysis]: Using template '2-nested'. 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 04:13:26,863 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 04:13:26,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:26,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:26,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:26,873 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:13:26,887 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-26 04:13:26,887 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-26 04:13:26,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:26,936 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 04:13:26,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:26,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:26,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:26,940 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:13:26,945 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-26 04:13:26,945 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-26 04:13:26,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:26,995 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 04:13:26,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:26,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:13:26,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:26,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:26,998 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-26 04:13:27,002 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-26 04:13:27,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:13:27,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-26 04:13:27,038 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:27,050 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 04:13:27,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:27,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:27,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:27,054 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:13:27,065 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-26 04:13:27,065 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-26 04:13:27,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:13:27,123 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 04:13:27,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:27,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:27,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:27,127 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:13:27,136 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-26 04:13:27,136 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:27,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:27,177 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 04:13:27,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:13:27,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:13:27,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:13:27,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:13:27,180 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-26 04:13:27,193 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-26 04:13:27,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 04:13:27,202 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:13:27,211 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-26 04:13:27,212 INFO L444 ModelExtractionUtils]: 8 out of 16 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:13:27,217 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:13:27,218 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:13:27,218 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:13:27,218 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0 - 1*ULTIMATE.start_main_~d1~0 f1 = -1*ULTIMATE.start_main_~d1~0 + 2*ULTIMATE.start_main_~x~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-10-26 04:13:27,253 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:13:27,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:13:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:13:27,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:13:27,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:13:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:13:27,344 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 04:13:27,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:13:27,345 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 04:13:27,364 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-10-26 04:13:27,370 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-10-26 04:13:27,424 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-10-26 04:13:27,425 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 04:13:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-26 04:13:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-10-26 04:13:27,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-10-26 04:13:27,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:13:27,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-26 04:13:27,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:13:27,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-26 04:13:27,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:13:27,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-10-26 04:13:27,435 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:13:27,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-26 04:13:27,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:13:27,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:13:27,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:13:27,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:13:27,440 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:13:27,440 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:13:27,440 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:13:27,440 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:13:27,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:13:27,441 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:13:27,441 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:13:27,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:13:27 BoogieIcfgContainer [2020-10-26 04:13:27,447 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:13:27,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:13:27,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:13:27,449 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:13:27,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:13:20" (3/4) ... [2020-10-26 04:13:27,452 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:13:27,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:13:27,455 INFO L168 Benchmark]: Toolchain (without parser) took 7552.60 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 21.3 MB in the beginning and 28.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:27,456 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:13:27,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.40 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 32.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:27,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.16 ms. Allocated memory is still 54.5 MB. Free memory was 32.0 MB in the beginning and 30.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:27,459 INFO L168 Benchmark]: Boogie Preprocessor took 19.24 ms. Allocated memory is still 54.5 MB. Free memory was 30.8 MB in the beginning and 29.9 MB in the end (delta: 979.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:13:27,460 INFO L168 Benchmark]: RCFGBuilder took 237.04 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 35.8 MB in the end (delta: -5.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:27,461 INFO L168 Benchmark]: BuchiAutomizer took 7012.80 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 29.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:27,462 INFO L168 Benchmark]: Witness Printer took 4.83 ms. Allocated memory is still 67.1 MB. Free memory was 29.2 MB in the beginning and 28.7 MB in the end (delta: 470.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:13:27,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 233.40 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 32.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.16 ms. Allocated memory is still 54.5 MB. Free memory was 32.0 MB in the beginning and 30.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.24 ms. Allocated memory is still 54.5 MB. Free memory was 30.8 MB in the beginning and 29.9 MB in the end (delta: 979.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 237.04 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 35.8 MB in the end (delta: -5.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7012.80 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 29.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.83 ms. Allocated memory is still 67.1 MB. Free memory was 29.2 MB in the beginning and 28.7 MB in the end (delta: 470.0 kB). Peak memory consumption was 2.1 MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 6.7s. 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: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...