./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/aaron2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/aaron2-1.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 51b008c7c9d1e1f97a8847fd6efe81beab0012cf ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:40:46,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:40:46,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:40:46,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:40:46,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:40:46,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:40:46,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:40:46,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:40:46,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:40:46,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:40:46,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:40:46,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:40:46,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:40:46,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:40:46,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:40:46,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:40:46,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:40:46,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:40:46,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:40:46,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:40:46,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:40:46,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:40:46,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:40:46,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:40:46,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:40:46,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:40:46,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:40:46,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:40:46,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:40:46,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:40:46,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:40:46,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:40:46,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:40:46,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:40:46,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:40:46,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:40:46,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:40:46,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:40:46,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:40:46,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:40:46,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:40:46,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:40:46,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:40:46,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:40:46,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:40:46,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:40:46,282 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:40:46,282 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:40:46,282 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:40:46,283 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:40:46,283 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:40:46,283 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:40:46,283 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:40:46,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:40:46,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:40:46,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:40:46,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:40:46,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:40:46,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:40:46,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:40:46,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:40:46,286 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:40:46,286 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:40:46,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:40:46,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:40:46,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:40:46,288 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:40:46,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:40:46,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:40:46,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:40:46,289 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:40:46,291 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:40:46,291 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 51b008c7c9d1e1f97a8847fd6efe81beab0012cf [2020-10-19 18:40:46,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:40:46,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:40:46,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:40:46,673 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:40:46,674 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:40:46,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/aaron2-1.c [2020-10-19 18:40:46,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df36b951/8dbd98566d08429da2c9472ee0297f8c/FLAGee730ad5f [2020-10-19 18:40:47,139 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:40:47,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/aaron2-1.c [2020-10-19 18:40:47,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df36b951/8dbd98566d08429da2c9472ee0297f8c/FLAGee730ad5f [2020-10-19 18:40:47,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0df36b951/8dbd98566d08429da2c9472ee0297f8c [2020-10-19 18:40:47,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:40:47,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:40:47,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:40:47,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:40:47,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:40:47,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105c74a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47, skipping insertion in model container [2020-10-19 18:40:47,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:40:47,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:40:47,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:40:47,792 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:40:47,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:40:47,822 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:40:47,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47 WrapperNode [2020-10-19 18:40:47,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:40:47,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:40:47,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:40:47,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:40:47,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:40:47,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:40:47,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:40:47,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:40:47,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (1/1) ... [2020-10-19 18:40:47,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:40:47,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:40:47,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:40:47,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:40:47,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (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 [2020-10-19 18:40:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:40:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:40:48,188 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:40:48,188 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:40:48,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:40:48 BoogieIcfgContainer [2020-10-19 18:40:48,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:40:48,191 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:40:48,192 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:40:48,195 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:40:48,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:40:48,197 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:40:47" (1/3) ... [2020-10-19 18:40:48,198 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25629482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:40:48, skipping insertion in model container [2020-10-19 18:40:48,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:40:48,199 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:40:47" (2/3) ... [2020-10-19 18:40:48,199 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25629482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:40:48, skipping insertion in model container [2020-10-19 18:40:48,199 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:40:48,200 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:40:48" (3/3) ... [2020-10-19 18:40:48,201 INFO L373 chiAutomizerObserver]: Analyzing ICFG aaron2-1.c [2020-10-19 18:40:48,250 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:40:48,251 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:40:48,251 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:40:48,251 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:40:48,251 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:40:48,251 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:40:48,251 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:40:48,252 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:40:48,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-10-19 18:40:48,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:40:48,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:40:48,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:40:48,293 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:40:48,293 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:40:48,294 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:40:48,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-10-19 18:40:48,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:40:48,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:40:48,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:40:48,296 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:40:48,296 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:40:48,302 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tx~0;main_~tx~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~y~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L21true assume !!(main_~tx~0 <= 1073741823); 6#L22true assume !!(main_~x~0 <= 1073741823); 8#L23true assume !!(main_~y~0 >= -1073741823); 10#L25-2true [2020-10-19 18:40:48,303 INFO L796 eck$LassoCheckResult]: Loop: 10#L25-2true assume !!(main_~x~0 >= main_~y~0 && main_~tx~0 >= 0); 12#L25true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1 - main_~tx~0; 10#L25-2true [2020-10-19 18:40:48,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:48,308 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2020-10-19 18:40:48,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:48,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72855383] [2020-10-19 18:40:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:48,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:48,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:48,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:48,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:48,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1764, now seen corresponding path program 1 times [2020-10-19 18:40:48,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:48,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683445490] [2020-10-19 18:40:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:48,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:48,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:48,459 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:48,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:48,461 INFO L82 PathProgramCache]: Analyzing trace with hash 922017838, now seen corresponding path program 1 times [2020-10-19 18:40:48,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:40:48,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956847508] [2020-10-19 18:40:48,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:40:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:48,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:40:48,480 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:40:48,483 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:40:48,625 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:40:48,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:40:48,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:40:48,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:40:48,627 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:40:48,627 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:48,627 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:40:48,628 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:40:48,628 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron2-1.c_Iteration1_Loop [2020-10-19 18:40:48,628 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:40:48,629 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:40:48,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:48,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:48,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:48,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:48,801 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:40:48,802 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:48,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:48,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:40:48,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:40:48,826 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) [2020-10-19 18:40:48,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:48,864 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 [2020-10-19 18:40:48,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:40:48,870 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) [2020-10-19 18:40:48,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:40:48,911 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) [2020-10-19 18:40:48,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:40:48,963 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 [2020-10-19 18:40:49,339 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:40:49,341 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:40:49,342 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:40:49,342 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:40:49,342 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:40:49,342 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:40:49,342 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,342 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:40:49,343 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:40:49,343 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron2-1.c_Iteration1_Loop [2020-10-19 18:40:49,343 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:40:49,345 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:40:49,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:40:49,438 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:40:49,445 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) [2020-10-19 18:40:49,457 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 [2020-10-19 18:40:49,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:49,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:49,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:49,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:49,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:40:49,468 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 [2020-10-19 18:40:49,475 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) [2020-10-19 18:40:49,531 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 [2020-10-19 18:40:49,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:49,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:49,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:49,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:49,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:40:49,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,583 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 [2020-10-19 18:40:49,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:40:49,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:40:49,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:40:49,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:40:49,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:40:49,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:40:49,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:40:49,593 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:40:49,600 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:40:49,600 INFO L444 ModelExtractionUtils]: 1 out of 5 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:40:49,614 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:40:49,614 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:40:49,614 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:40:49,616 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2020-10-19 18:40:49,643 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:40:49,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:40:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:40:49,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:40:49,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:40:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:40:49,720 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:40:49,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:40:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:40:49,756 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 [2020-10-19 18:40:49,758 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2020-10-19 18:40:49,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 7 states. [2020-10-19 18:40:49,821 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 [2020-10-19 18:40:49,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:40:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-10-19 18:40:49,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 18:40:49,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:40:49,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 2 letters. [2020-10-19 18:40:49,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:40:49,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 4 letters. Loop has 4 letters. [2020-10-19 18:40:49,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:40:49,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2020-10-19 18:40:49,839 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:40:49,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-10-19 18:40:49,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:40:49,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:40:49,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:40:49,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:40:49,847 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:40:49,847 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:40:49,847 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:40:49,848 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:40:49,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:40:49,848 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:40:49,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:40:49,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:40:49 BoogieIcfgContainer [2020-10-19 18:40:49,858 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:40:49,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:40:49,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:40:49,862 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:40:49,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:40:48" (3/4) ... [2020-10-19 18:40:49,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:40:49,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:40:49,872 INFO L168 Benchmark]: Toolchain (without parser) took 2340.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 960.0 MB in the beginning and 989.1 MB in the end (delta: -29.1 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:40:49,873 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:40:49,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.93 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:40:49,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:40:49,878 INFO L168 Benchmark]: Boogie Preprocessor took 20.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:40:49,879 INFO L168 Benchmark]: RCFGBuilder took 248.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:40:49,882 INFO L168 Benchmark]: BuchiAutomizer took 1667.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.1 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:40:49,888 INFO L168 Benchmark]: Witness Printer took 6.36 ms. Allocated memory is still 1.2 GB. Free memory is still 989.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:40:49,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.93 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 248.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1667.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.1 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.36 ms. Allocated memory is still 1.2 GB. Free memory is still 989.1 MB. There was no memory consumed. Max. memory is 11.5 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 affine ranking function 2 * x + -2 * y + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: 12 SDtfs, 13 SDslu, 6 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf93 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf95 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...