./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash da65a08be7a694e995d17e45362055fa5f60ddf40e08c5ba36204464b294ccf0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:09:07,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:09:07,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:09:07,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:09:07,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:09:07,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:09:07,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:09:07,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:09:07,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:09:07,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:09:07,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:09:07,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:09:07,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:09:07,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:09:07,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:09:07,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:09:07,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:09:07,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:09:07,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:09:07,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:09:07,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:09:07,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:09:07,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:09:07,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:09:07,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:09:07,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:09:07,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:09:07,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:09:07,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:09:07,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:09:07,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:09:07,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:09:07,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:09:07,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:09:07,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:09:07,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:09:07,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:09:07,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:09:07,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:09:07,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:09:07,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:09:07,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:09:07,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:09:07,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:09:07,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:09:07,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:09:07,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:09:07,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:09:07,248 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:09:07,249 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:09:07,249 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:09:07,249 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:09:07,249 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:09:07,250 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:09:07,250 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:09:07,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:09:07,250 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:09:07,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:09:07,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:09:07,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:09:07,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:09:07,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:09:07,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:09:07,251 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:09:07,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:09:07,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:09:07,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:09:07,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:09:07,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:09:07,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:09:07,257 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:09:07,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da65a08be7a694e995d17e45362055fa5f60ddf40e08c5ba36204464b294ccf0 [2021-12-28 09:09:07,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:09:07,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:09:07,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:09:07,514 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:09:07,515 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:09:07,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i [2021-12-28 09:09:07,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d856dc15f/a03b3d9e7c9e4313aef342a42788555e/FLAG68c262108 [2021-12-28 09:09:07,964 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:09:07,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i [2021-12-28 09:09:07,976 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d856dc15f/a03b3d9e7c9e4313aef342a42788555e/FLAG68c262108 [2021-12-28 09:09:07,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d856dc15f/a03b3d9e7c9e4313aef342a42788555e [2021-12-28 09:09:07,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:09:07,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:09:07,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:09:07,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:09:07,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:09:07,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:09:07" (1/1) ... [2021-12-28 09:09:07,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e2f953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:07, skipping insertion in model container [2021-12-28 09:09:07,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:09:07" (1/1) ... [2021-12-28 09:09:08,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:09:08,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:09:08,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:09:08,292 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:09:08,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:09:08,332 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:09:08,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08 WrapperNode [2021-12-28 09:09:08,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:09:08,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:09:08,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:09:08,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:09:08,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,369 INFO L137 Inliner]: procedures = 111, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2021-12-28 09:09:08,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:09:08,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:09:08,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:09:08,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:09:08,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:09:08,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:09:08,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:09:08,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:09:08,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (1/1) ... [2021-12-28 09:09:08,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:08,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:08,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:08,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:09:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 09:09:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 09:09:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 09:09:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 09:09:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:09:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:09:08,527 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:09:08,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:09:08,664 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:09:08,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:09:08,668 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 09:09:08,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:09:08 BoogieIcfgContainer [2021-12-28 09:09:08,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:09:08,670 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:09:08,670 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:09:08,672 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:09:08,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:09:08,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:09:07" (1/3) ... [2021-12-28 09:09:08,673 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67bdf0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:09:08, skipping insertion in model container [2021-12-28 09:09:08,673 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:09:08,673 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:08" (2/3) ... [2021-12-28 09:09:08,673 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67bdf0a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:09:08, skipping insertion in model container [2021-12-28 09:09:08,673 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:09:08,673 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:09:08" (3/3) ... [2021-12-28 09:09:08,674 INFO L388 chiAutomizerObserver]: Analyzing ICFG aviad_true-alloca.i [2021-12-28 09:09:08,728 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:09:08,728 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:09:08,728 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:09:08,728 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:09:08,729 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:09:08,729 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:09:08,729 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:09:08,729 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:09:08,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:08,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-28 09:09:08,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:09:08,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:09:08,758 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:09:08,758 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-28 09:09:08,758 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:09:08,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:08,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-28 09:09:08,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:09:08,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:09:08,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-28 09:09:08,761 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-28 09:09:08,765 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet13#1, main_#t~ret14#1, main_~x~0#1, main_~count~1#1;main_~x~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;assume { :begin_inline_f } true;f_#in~a#1 := main_~x~0#1;havoc f_#res#1;havoc f_#t~malloc2#1.base, f_#t~malloc2#1.offset, f_#t~malloc3#1.base, f_#t~malloc3#1.offset, f_#t~malloc4#1.base, f_#t~malloc4#1.offset, f_#t~mem6#1, f_#t~mem7#1, f_#t~mem8#1, f_#t~mem9#1, f_#t~mem10#1, f_#t~post11#1, f_#t~mem5#1, f_#t~mem12#1, f_~a#1, f_~a_ref~0#1.base, f_~a_ref~0#1.offset, f_~tmp~0#1.base, f_~tmp~0#1.offset, f_~count~0#1.base, f_~count~0#1.offset;f_~a#1 := f_#in~a#1;call f_#t~malloc2#1.base, f_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);f_~a_ref~0#1.base, f_~a_ref~0#1.offset := f_#t~malloc2#1.base, f_#t~malloc2#1.offset;call f_#t~malloc3#1.base, f_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);f_~tmp~0#1.base, f_~tmp~0#1.offset := f_#t~malloc3#1.base, f_#t~malloc3#1.offset;call f_#t~malloc4#1.base, f_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);f_~count~0#1.base, f_~count~0#1.offset := f_#t~malloc4#1.base, f_#t~malloc4#1.offset;call write~int(f_~a#1, f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);call write~int(0, f_~tmp~0#1.base, f_~tmp~0#1.offset, 4);call write~int(0, f_~count~0#1.base, f_~count~0#1.offset, 4); 8#L554-3true [2021-12-28 09:09:08,766 INFO L793 eck$LassoCheckResult]: Loop: 8#L554-3true call f_#t~mem5#1 := read~int(f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4); 10#L554-1true assume !!(f_#t~mem5#1 > 1);havoc f_#t~mem5#1;call f_#t~mem6#1 := read~int(f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);call write~int((if f_#t~mem6#1 < 0 && 0 != f_#t~mem6#1 % 2 then f_#t~mem6#1 % 2 - 2 else f_#t~mem6#1 % 2), f_~tmp~0#1.base, f_~tmp~0#1.offset, 4);havoc f_#t~mem6#1;call f_#t~mem7#1 := read~int(f_~tmp~0#1.base, f_~tmp~0#1.offset, 4); 6#L556true assume !(0 == f_#t~mem7#1);havoc f_#t~mem7#1;call f_#t~mem9#1 := read~int(f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);call write~int(f_#t~mem9#1 - 1, f_~a_ref~0#1.base, f_~a_ref~0#1.offset, 4);havoc f_#t~mem9#1; 9#L556-2true call f_#t~mem10#1 := read~int(f_~count~0#1.base, f_~count~0#1.offset, 4);f_#t~post11#1 := f_#t~mem10#1;call write~int(1 + f_#t~post11#1, f_~count~0#1.base, f_~count~0#1.offset, 4);havoc f_#t~mem10#1;havoc f_#t~post11#1; 8#L554-3true [2021-12-28 09:09:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-28 09:09:08,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:08,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245935507] [2021-12-28 09:09:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:08,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:08,913 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:08,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1144136, now seen corresponding path program 1 times [2021-12-28 09:09:08,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:08,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721325137] [2021-12-28 09:09:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:08,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:08,988 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:09,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:09,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:09,036 INFO L85 PathProgramCache]: Analyzing trace with hash 889571338, now seen corresponding path program 1 times [2021-12-28 09:09:09,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:09,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386155325] [2021-12-28 09:09:09,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:09,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:09,059 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:09,082 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:09,664 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:09:09,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:09:09,665 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:09:09,665 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:09:09,665 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:09:09,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:09,665 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:09:09,666 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:09:09,666 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad_true-alloca.i_Iteration1_Lasso [2021-12-28 09:09:09,666 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:09:09,667 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:09:09,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:09,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:10,578 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:09:10,581 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:09:10,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-28 09:09:10,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:10,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:10,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:10,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:10,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-28 09:09:10,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:10,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:10,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,669 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-28 09:09:10,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-28 09:09:10,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:10,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,741 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:10,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:10,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-28 09:09:10,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,758 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-28 09:09:10,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-28 09:09:10,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,787 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-28 09:09:10,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:10,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:10,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,817 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-28 09:09:10,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:09:10,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:10,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:10,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:10,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:10,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:10,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:10,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:09:10,887 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-28 09:09:10,888 INFO L444 ModelExtractionUtils]: 8 out of 19 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-12-28 09:09:10,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:10,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:09:10,934 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:09:10,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-28 09:09:10,952 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-28 09:09:10,952 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:09:10,952 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~a_ref~0#1.base) ULTIMATE.start_f_~a_ref~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~a_ref~0#1.base) ULTIMATE.start_f_~a_ref~0#1.offset)_1 Supporting invariants [] [2021-12-28 09:09:10,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:11,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:11,064 INFO L297 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2021-12-28 09:09:11,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:11,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 09:09:11,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:11,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 09:09:11,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:11,213 INFO L353 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-28 09:09:11,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-12-28 09:09:11,402 INFO L353 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-28 09:09:11,402 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2021-12-28 09:09:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:13,595 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-28 09:09:13,596 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:13,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 8 states. [2021-12-28 09:09:13,648 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 [2021-12-28 09:09:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-12-28 09:09:13,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-28 09:09:13,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:13,653 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-28 09:09:13,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:13,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 09:09:13,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:13,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 09:09:13,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:13,732 INFO L353 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-28 09:09:13,733 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-12-28 09:09:13,887 INFO L353 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-28 09:09:13,888 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2021-12-28 09:09:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:14,566 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-28 09:09:14,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:14,592 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 22 transitions. Complement of second has 6 states. [2021-12-28 09:09:14,593 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 [2021-12-28 09:09:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-28 09:09:14,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-28 09:09:14,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:14,594 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-28 09:09:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:14,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 09:09:14,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:14,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 09:09:14,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:14,690 INFO L353 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-28 09:09:14,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-12-28 09:09:14,827 INFO L353 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-28 09:09:14,828 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2021-12-28 09:09:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:15,436 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-28 09:09:15,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:15,475 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 7 states. [2021-12-28 09:09:15,476 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 [2021-12-28 09:09:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:15,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-12-28 09:09:15,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-28 09:09:15,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:15,477 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-28 09:09:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:15,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 09:09:15,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:15,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 09:09:15,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:15,561 INFO L353 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-28 09:09:15,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-12-28 09:09:15,698 INFO L353 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-28 09:09:15,698 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2021-12-28 09:09:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:17,770 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-28 09:09:17,771 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:17,802 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 23 transitions. Complement of second has 5 states. [2021-12-28 09:09:17,803 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 [2021-12-28 09:09:17,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-12-28 09:09:17,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-28 09:09:17,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:17,804 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-28 09:09:17,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:17,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-28 09:09:17,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:17,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 09:09:17,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:17,888 INFO L353 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-12-28 09:09:17,888 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-12-28 09:09:18,028 INFO L353 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2021-12-28 09:09:18,029 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 85 [2021-12-28 09:09:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:18,624 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-28 09:09:18,625 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:18,689 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 73 transitions. Complement of second has 13 states 6 powerset states7 rank states. The highest rank that occured is 3 [2021-12-28 09:09:18,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2021-12-28 09:09:18,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:09:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2021-12-28 09:09:18,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 4 letters. [2021-12-28 09:09:18,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:18,691 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-28 09:09:18,691 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:549) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-28 09:09:18,693 INFO L158 Benchmark]: Toolchain (without parser) took 10702.50ms. Allocated memory was 50.3MB in the beginning and 83.9MB in the end (delta: 33.6MB). Free memory was 26.3MB in the beginning and 35.4MB in the end (delta: -9.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-28 09:09:18,694 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.4MB in the beginning and 32.4MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:09:18,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.71ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.2MB in the beginning and 44.7MB in the end (delta: -18.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-12-28 09:09:18,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.47ms. Allocated memory is still 67.1MB. Free memory was 44.7MB in the beginning and 42.9MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:09:18,695 INFO L158 Benchmark]: Boogie Preprocessor took 16.22ms. Allocated memory is still 67.1MB. Free memory was 42.9MB in the beginning and 41.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:09:18,695 INFO L158 Benchmark]: RCFGBuilder took 282.86ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 45.5MB in the end (delta: -3.8MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-12-28 09:09:18,695 INFO L158 Benchmark]: BuchiAutomizer took 10023.01ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 45.5MB in the beginning and 35.4MB in the end (delta: 10.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-12-28 09:09:18,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.4MB in the beginning and 32.4MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.71ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.2MB in the beginning and 44.7MB in the end (delta: -18.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.47ms. Allocated memory is still 67.1MB. Free memory was 44.7MB in the beginning and 42.9MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.22ms. Allocated memory is still 67.1MB. Free memory was 42.9MB in the beginning and 41.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.86ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 45.5MB in the end (delta: -3.8MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 10023.01ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 45.5MB in the beginning and 35.4MB in the end (delta: 10.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:785) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-28 09:09:18,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: no settings was sufficient