./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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/Urban-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 5964f352b4fb43ac691f9b95d86e187c9f5cb80a14ac63e8c25af4413cd385ce --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:02:19,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:02:19,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:02:19,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:02:19,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:02:19,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:02:19,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:02:19,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:02:19,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:02:19,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:02:19,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:02:19,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:02:19,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:02:19,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:02:19,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:02:19,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:02:19,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:02:19,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:02:19,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:02:19,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:02:19,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:02:19,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:02:19,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:02:19,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:02:19,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:02:19,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:02:19,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:02:19,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:02:19,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:02:19,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:02:19,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:02:19,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:02:19,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:02:19,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:02:19,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:02:19,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:02:19,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:02:19,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:02:19,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:02:19,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:02:19,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:02:19,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 22:02:19,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:02:19,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:02:19,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:02:19,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:02:19,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:02:19,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:02:19,273 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:02:19,273 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:02:19,273 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:02:19,273 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:02:19,274 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:02:19,274 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:02:19,274 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:02:19,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:02:19,274 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:02:19,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:02:19,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:02:19,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:02:19,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:02:19,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:02:19,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:02:19,275 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:02:19,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:02:19,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:02:19,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:02:19,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:02:19,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:02:19,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:02:19,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:02:19,278 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:02:19,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5964f352b4fb43ac691f9b95d86e187c9f5cb80a14ac63e8c25af4413cd385ce [2021-12-21 22:02:19,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:02:19,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:02:19,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:02:19,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:02:19,457 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:02:19,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-21 22:02:19,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d555a16/0be1c2ea9b89499d9eb2b22f7d92c2a1/FLAG4bcfa04a9 [2021-12-21 22:02:19,871 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:02:19,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-21 22:02:19,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d555a16/0be1c2ea9b89499d9eb2b22f7d92c2a1/FLAG4bcfa04a9 [2021-12-21 22:02:20,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d555a16/0be1c2ea9b89499d9eb2b22f7d92c2a1 [2021-12-21 22:02:20,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:02:20,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:02:20,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:02:20,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:02:20,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:02:20,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459b9801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20, skipping insertion in model container [2021-12-21 22:02:20,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:02:20,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:02:20,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:02:20,501 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:02:20,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:02:20,566 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:02:20,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20 WrapperNode [2021-12-21 22:02:20,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:02:20,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:02:20,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:02:20,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:02:20,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,598 INFO L137 Inliner]: procedures = 110, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-12-21 22:02:20,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:02:20,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:02:20,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:02:20,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:02:20,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:02:20,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:02:20,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:02:20,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:02:20,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (1/1) ... [2021-12-21 22:02:20,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:20,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:20,664 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) [2021-12-21 22:02:20,683 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 [2021-12-21 22:02:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 22:02:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 22:02:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 22:02:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 22:02:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:02:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:02:20,797 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:02:20,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:02:20,962 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:02:20,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:02:20,967 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 22:02:20,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:02:20 BoogieIcfgContainer [2021-12-21 22:02:20,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:02:20,969 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:02:20,969 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:02:20,981 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:02:20,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:02:20,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:02:20" (1/3) ... [2021-12-21 22:02:20,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70e94784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:02:20, skipping insertion in model container [2021-12-21 22:02:20,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:02:20,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:02:20" (2/3) ... [2021-12-21 22:02:20,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70e94784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:02:20, skipping insertion in model container [2021-12-21 22:02:20,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:02:20,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:02:20" (3/3) ... [2021-12-21 22:02:20,984 INFO L388 chiAutomizerObserver]: Analyzing ICFG Urban-alloca.i [2021-12-21 22:02:21,026 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:02:21,026 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:02:21,026 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:02:21,027 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:02:21,027 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:02:21,027 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:02:21,027 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:02:21,027 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:02:21,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-12-21 22:02:21,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-21 22:02:21,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:21,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:21,057 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 22:02:21,057 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:21,057 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:02:21,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-12-21 22:02:21,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-21 22:02:21,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:21,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:21,060 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 22:02:21,060 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:21,065 INFO L791 eck$LassoCheckResult]: Stem: 4#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~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 8#L559-2true [2021-12-21 22:02:21,066 INFO L793 eck$LassoCheckResult]: Loop: 8#L559-2true call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 12#L550-1true assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 10#L550-3true assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 9#L551true assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7#L559true assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 8#L559-2true [2021-12-21 22:02:21,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-21 22:02:21,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:21,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987372718] [2021-12-21 22:02:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:21,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:21,171 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:21,203 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:21,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:21,206 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 1 times [2021-12-21 22:02:21,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:21,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122424706] [2021-12-21 22:02:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:21,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:21,242 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:21,261 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:21,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 1 times [2021-12-21 22:02:21,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:21,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740928687] [2021-12-21 22:02:21,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:21,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:21,287 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:21,319 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:21,667 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:02:21,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:02:21,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:02:21,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:02:21,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:02:21,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:21,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:02:21,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:02:21,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration1_Lasso [2021-12-21 22:02:21,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:02:21,670 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:02:21,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:21,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:22,177 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:02:22,179 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:02:22,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:22,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:22,196 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) [2021-12-21 22:02:22,199 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 [2021-12-21 22:02:22,205 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 [2021-12-21 22:02:22,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:22,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:22,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:22,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:22,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:22,218 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:22,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:22,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-21 22:02:22,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:22,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:22,243 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) [2021-12-21 22:02:22,243 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 [2021-12-21 22:02:22,245 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 [2021-12-21 22:02:22,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:22,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:22,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:22,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:22,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:22,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:22,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:22,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-21 22:02:22,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:22,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:22,278 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) [2021-12-21 22:02:22,302 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 [2021-12-21 22:02:22,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:22,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:22,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:22,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:22,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:22,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:22,315 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 [2021-12-21 22:02:22,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:22,342 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 [2021-12-21 22:02:22,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:22,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:22,344 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) [2021-12-21 22:02:22,363 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 [2021-12-21 22:02:22,363 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 [2021-12-21 22:02:22,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:22,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:22,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:22,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:22,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:22,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:22,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:22,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:22,386 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 [2021-12-21 22:02:22,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:22,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:22,388 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) [2021-12-21 22:02:22,389 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 [2021-12-21 22:02:22,391 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 [2021-12-21 22:02:22,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:22,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:22,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:22,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:22,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:22,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:22,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:22,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:02:22,412 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-21 22:02:22,412 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 22:02:22,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:22,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:22,414 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) [2021-12-21 22:02:22,415 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 [2021-12-21 22:02:22,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:02:22,418 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 22:02:22,418 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:02:22,419 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 Supporting invariants [] [2021-12-21 22:02:22,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:22,480 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-21 22:02:22,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:22,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:22,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:22,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-21 22:02:22,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:22,667 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-12-21 22:02:22,668 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2021-12-21 22:02:22,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 46 states and 58 transitions. Complement of second has 14 states. [2021-12-21 22:02:22,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2021-12-21 22:02:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2021-12-21 22:02:22,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 2 letters. Loop has 5 letters. [2021-12-21 22:02:22,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:22,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-21 22:02:22,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:22,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 2 letters. Loop has 10 letters. [2021-12-21 22:02:22,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:22,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 58 transitions. [2021-12-21 22:02:22,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-21 22:02:22,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 21 states and 31 transitions. [2021-12-21 22:02:22,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-21 22:02:22,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-12-21 22:02:22,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 31 transitions. [2021-12-21 22:02:22,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:22,759 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 31 transitions. [2021-12-21 22:02:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 31 transitions. [2021-12-21 22:02:22,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2021-12-21 22:02:22,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 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) [2021-12-21 22:02:22,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-12-21 22:02:22,775 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-21 22:02:22,775 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-21 22:02:22,775 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:02:22,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2021-12-21 22:02:22,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-21 22:02:22,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:22,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:22,776 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-21 22:02:22,776 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:22,777 INFO L791 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 178#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 174#L550-1 assume !main_#t~short6#1; 180#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 169#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 170#L552 [2021-12-21 22:02:22,777 INFO L793 eck$LassoCheckResult]: Loop: 170#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 166#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 172#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 175#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 176#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 170#L552 [2021-12-21 22:02:22,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:22,777 INFO L85 PathProgramCache]: Analyzing trace with hash 889571371, now seen corresponding path program 1 times [2021-12-21 22:02:22,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:22,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793670116] [2021-12-21 22:02:22,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:22,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:22,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:02:22,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793670116] [2021-12-21 22:02:22,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793670116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:02:22,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:02:22,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:02:22,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910819509] [2021-12-21 22:02:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:02:22,807 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-21 22:02:22,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:22,807 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 1 times [2021-12-21 22:02:22,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:22,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402108170] [2021-12-21 22:02:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:22,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:22,816 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:22,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:22,931 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 [2021-12-21 22:02:22,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:02:22,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:02:22,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:02:22,970 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2021-12-21 22:02:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:02:22,979 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-12-21 22:02:22,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:02:22,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-12-21 22:02:22,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-21 22:02:22,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2021-12-21 22:02:22,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-21 22:02:22,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-21 22:02:22,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-12-21 22:02:22,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:22,982 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-21 22:02:22,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-12-21 22:02:22,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-21 22:02:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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) [2021-12-21 22:02:22,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-12-21 22:02:22,985 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-21 22:02:22,985 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-21 22:02:22,985 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:02:22,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-12-21 22:02:22,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-21 22:02:22,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:22,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:22,986 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-21 22:02:22,987 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:22,987 INFO L791 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 223#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 220#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 225#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 224#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 215#L552 [2021-12-21 22:02:22,987 INFO L793 eck$LassoCheckResult]: Loop: 215#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 211#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 218#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 221#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 214#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 215#L552 [2021-12-21 22:02:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:22,987 INFO L85 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2021-12-21 22:02:22,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:22,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085416897] [2021-12-21 22:02:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:22,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:23,010 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:23,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:23,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:23,027 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 2 times [2021-12-21 22:02:23,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:23,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104198088] [2021-12-21 22:02:23,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:23,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:23,045 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:23,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:23,055 INFO L85 PathProgramCache]: Analyzing trace with hash -364197003, now seen corresponding path program 1 times [2021-12-21 22:02:23,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:23,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961147599] [2021-12-21 22:02:23,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:23,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:23,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:23,094 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:23,392 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:02:23,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:02:23,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:02:23,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:02:23,392 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:02:23,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:23,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:02:23,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:02:23,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration3_Lasso [2021-12-21 22:02:23,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:02:23,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:02:23,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:23,792 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:02:23,793 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:02:23,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:23,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:23,794 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) [2021-12-21 22:02:23,810 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 [2021-12-21 22:02:23,820 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 [2021-12-21 22:02:23,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:23,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:23,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:23,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:23,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:23,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:23,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:23,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:23,859 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 [2021-12-21 22:02:23,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:23,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:23,860 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) [2021-12-21 22:02:23,861 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 [2021-12-21 22:02:23,863 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 [2021-12-21 22:02:23,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:23,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:23,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:23,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:23,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:23,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:23,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:23,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:23,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-21 22:02:23,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:23,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:23,899 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2021-12-21 22:02:23,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-21 22:02:23,921 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 [2021-12-21 22:02:23,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:23,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:23,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:23,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:23,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:23,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:23,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:23,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:23,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:23,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:23,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:23,980 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2021-12-21 22:02:23,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-21 22:02:23,983 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 [2021-12-21 22:02:23,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:23,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:23,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:23,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:24,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:24,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:24,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-21 22:02:24,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,060 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2021-12-21 22:02:24,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-21 22:02:24,063 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 [2021-12-21 22:02:24,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:24,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:24,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:24,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:24,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:24,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:24,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:24,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,099 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2021-12-21 22:02:24,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-21 22:02:24,102 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 [2021-12-21 22:02:24,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:24,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:24,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:24,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:24,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:24,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:24,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:24,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:24,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,135 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2021-12-21 22:02:24,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-21 22:02:24,138 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 [2021-12-21 22:02:24,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:24,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:24,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:24,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:24,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:24,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:24,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:24,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:24,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,168 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2021-12-21 22:02:24,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-21 22:02:24,170 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 [2021-12-21 22:02:24,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:24,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:24,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:24,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:24,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:24,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:24,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-21 22:02:24,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,202 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2021-12-21 22:02:24,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-21 22:02:24,204 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 [2021-12-21 22:02:24,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:24,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:24,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:24,211 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-21 22:02:24,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,211 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-21 22:02:24,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:24,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:24,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-21 22:02:24,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,237 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2021-12-21 22:02:24,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-21 22:02:24,240 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 [2021-12-21 22:02:24,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:24,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:24,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:24,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:24,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:24,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:24,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:24,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,288 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2021-12-21 22:02:24,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-21 22:02:24,291 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 [2021-12-21 22:02:24,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:24,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:24,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:24,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:24,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:24,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:24,310 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:02:24,314 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-21 22:02:24,314 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-21 22:02:24,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:24,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,315 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2021-12-21 22:02:24,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-21 22:02:24,317 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:02:24,338 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:02:24,338 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:02:24,338 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_2 Supporting invariants [] [2021-12-21 22:02:24,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:24,374 INFO L297 tatePredicateManager]: 9 out of 11 supporting invariants were superfluous and have been removed [2021-12-21 22:02:24,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:24,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-21 22:02:24,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:24,428 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-21 22:02:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:24,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 22:02:24,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:24,480 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2021-12-21 22:02:24,485 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-21 22:02:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:24,528 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-12-21 22:02:24,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-12-21 22:02:24,591 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 8. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 49 states and 69 transitions. Complement of second has 10 states. [2021-12-21 22:02:24,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-12-21 22:02:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2021-12-21 22:02:24,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 5 letters. [2021-12-21 22:02:24,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:24,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-21 22:02:24,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:24,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 10 letters. [2021-12-21 22:02:24,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:24,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 69 transitions. [2021-12-21 22:02:24,594 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-21 22:02:24,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 48 states and 68 transitions. [2021-12-21 22:02:24,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-21 22:02:24,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-12-21 22:02:24,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2021-12-21 22:02:24,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:24,596 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-12-21 22:02:24,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2021-12-21 22:02:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2021-12-21 22:02:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 44 states have internal predecessors, (64), 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) [2021-12-21 22:02:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2021-12-21 22:02:24,598 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-21 22:02:24,598 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-21 22:02:24,598 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 22:02:24,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 64 transitions. [2021-12-21 22:02:24,599 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-21 22:02:24,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:24,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:24,600 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:02:24,600 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2021-12-21 22:02:24,600 INFO L791 eck$LassoCheckResult]: Stem: 387#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 388#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 403#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 416#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 423#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 420#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 417#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 418#L559-2 [2021-12-21 22:02:24,600 INFO L793 eck$LassoCheckResult]: Loop: 418#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 425#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 424#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 393#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 394#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 419#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 404#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 400#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 401#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 421#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 418#L559-2 [2021-12-21 22:02:24,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:24,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 2 times [2021-12-21 22:02:24,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:24,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143855870] [2021-12-21 22:02:24,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:24,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:24,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:24,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:24,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:24,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1870690047, now seen corresponding path program 1 times [2021-12-21 22:02:24,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:24,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410788781] [2021-12-21 22:02:24,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:24,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:24,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:02:24,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410788781] [2021-12-21 22:02:24,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410788781] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 22:02:24,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330184737] [2021-12-21 22:02:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:24,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 22:02:24,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:24,674 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 22:02:24,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-21 22:02:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:24,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-21 22:02:24,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:24,821 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 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-21 22:02:24,856 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-21 22:02:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:24,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 22:02:24,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:24,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330184737] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 22:02:24,899 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 22:02:24,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2021-12-21 22:02:24,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181568928] [2021-12-21 22:02:24,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 22:02:24,899 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:02:24,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:02:24,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 22:02:24,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-21 22:02:24,900 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. cyclomatic complexity: 24 Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-12-21 22:02:24,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:02:24,971 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2021-12-21 22:02:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 22:02:24,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 85 transitions. [2021-12-21 22:02:24,973 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-21 22:02:24,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 62 states and 80 transitions. [2021-12-21 22:02:24,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-12-21 22:02:24,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-12-21 22:02:24,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 80 transitions. [2021-12-21 22:02:24,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:24,974 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 80 transitions. [2021-12-21 22:02:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 80 transitions. [2021-12-21 22:02:24,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2021-12-21 22:02:24,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.34) internal successors, (67), 49 states have internal predecessors, (67), 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) [2021-12-21 22:02:24,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2021-12-21 22:02:24,977 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-21 22:02:24,977 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-21 22:02:24,977 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-21 22:02:24,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 67 transitions. [2021-12-21 22:02:24,978 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-21 22:02:24,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:24,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:24,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:02:24,979 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:24,979 INFO L791 eck$LassoCheckResult]: Stem: 570#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 571#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 589#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 598#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 619#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 618#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 599#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 573#L559-2 [2021-12-21 22:02:24,979 INFO L793 eck$LassoCheckResult]: Loop: 573#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 577#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 584#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 585#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 572#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 573#L559-2 [2021-12-21 22:02:24,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 3 times [2021-12-21 22:02:24,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:24,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290396143] [2021-12-21 22:02:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:24,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:24,991 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:24,997 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 2 times [2021-12-21 22:02:24,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:24,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049284455] [2021-12-21 22:02:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:24,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,004 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:25,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:25,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1594795075, now seen corresponding path program 1 times [2021-12-21 22:02:25,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:25,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754898603] [2021-12-21 22:02:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:25,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:25,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:25,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:02:25,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754898603] [2021-12-21 22:02:25,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754898603] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 22:02:25,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553862604] [2021-12-21 22:02:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:25,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 22:02:25,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:25,159 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 22:02:25,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-21 22:02:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:25,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-21 22:02:25,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:25,260 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-12-21 22:02:25,290 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2021-12-21 22:02:25,295 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-21 22:02:25,340 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-12-21 22:02:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:25,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 22:02:25,387 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_142 (Array Int Int))) (<= 0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base|))) (store .cse0 |c_ULTIMATE.start_main_~x~0#1.offset| (+ (- 1) (select .cse0 |c_ULTIMATE.start_main_~x~0#1.offset|))))) |c_ULTIMATE.start_main_~y~0#1.base| v_ArrVal_142) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) is different from false [2021-12-21 22:02:25,421 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-21 22:02:25,421 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 25 [2021-12-21 22:02:25,429 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-12-21 22:02:25,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-12-21 22:02:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:25,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553862604] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 22:02:25,446 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 22:02:25,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2021-12-21 22:02:25,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717517312] [2021-12-21 22:02:25,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 22:02:25,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:02:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-21 22:02:25,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=136, Unknown=2, NotChecked=24, Total=210 [2021-12-21 22:02:25,529 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. cyclomatic complexity: 22 Second operand has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2021-12-21 22:02:25,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:02:25,631 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-12-21 22:02:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 22:02:25,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. [2021-12-21 22:02:25,633 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-21 22:02:25,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 40 states and 50 transitions. [2021-12-21 22:02:25,633 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-21 22:02:25,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-21 22:02:25,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2021-12-21 22:02:25,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:25,633 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-21 22:02:25,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2021-12-21 22:02:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-21 22:02:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 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) [2021-12-21 22:02:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-12-21 22:02:25,635 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-21 22:02:25,635 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-21 22:02:25,635 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-21 22:02:25,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-12-21 22:02:25,635 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-21 22:02:25,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:25,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:25,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:02:25,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:25,636 INFO L791 eck$LassoCheckResult]: Stem: 757#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 758#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 774#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 782#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 786#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 785#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 784#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 776#L559-2 [2021-12-21 22:02:25,636 INFO L793 eck$LassoCheckResult]: Loop: 776#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 789#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 788#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 767#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 768#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 776#L559-2 [2021-12-21 22:02:25,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849169, now seen corresponding path program 1 times [2021-12-21 22:02:25,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:25,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631061838] [2021-12-21 22:02:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:25,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,650 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:25,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:25,665 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 1 times [2021-12-21 22:02:25,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:25,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020624826] [2021-12-21 22:02:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:25,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,681 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,684 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:25,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1652053123, now seen corresponding path program 2 times [2021-12-21 22:02:25,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:25,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626859540] [2021-12-21 22:02:25,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:25,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,694 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:25,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:25,980 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:02:25,980 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:02:25,980 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:02:25,980 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:02:25,980 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:02:25,980 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:25,980 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:02:25,980 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:02:25,980 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration6_Lasso [2021-12-21 22:02:25,980 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:02:25,980 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:02:25,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:25,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:25,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:25,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:25,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:25,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:26,412 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:02:26,412 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:02:26,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,413 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2021-12-21 22:02:26,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-21 22:02:26,428 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 [2021-12-21 22:02:26,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:26,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:26,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:26,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:26,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,453 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2021-12-21 22:02:26,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-21 22:02:26,455 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 [2021-12-21 22:02:26,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:26,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:26,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:26,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:26,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,486 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2021-12-21 22:02:26,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-21 22:02:26,488 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 [2021-12-21 22:02:26,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:26,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:26,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:26,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,516 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2021-12-21 22:02:26,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-21 22:02:26,519 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 [2021-12-21 22:02:26,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:26,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:26,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:26,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:26,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,558 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2021-12-21 22:02:26,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-21 22:02:26,560 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 [2021-12-21 22:02:26,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:26,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:26,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:26,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:26,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,612 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2021-12-21 22:02:26,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-21 22:02:26,626 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 [2021-12-21 22:02:26,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:26,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:26,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:26,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,664 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2021-12-21 22:02:26,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-21 22:02:26,667 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 [2021-12-21 22:02:26,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:26,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:26,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:26,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,699 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-12-21 22:02:26,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-21 22:02:26,702 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 [2021-12-21 22:02:26,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:26,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:26,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:26,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:26,710 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:26,710 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:26,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:02:26,728 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-21 22:02:26,728 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-21 22:02:26,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:26,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:26,730 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-12-21 22:02:26,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-21 22:02:26,731 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:02:26,738 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:02:26,738 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:02:26,738 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_3 Supporting invariants [] [2021-12-21 22:02:26,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:26,772 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-21 22:02:26,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:26,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:26,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:26,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:02:26,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:26,858 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-21 22:02:26,858 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-12-21 22:02:26,875 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 64 states and 78 transitions. Complement of second has 9 states. [2021-12-21 22:02:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2021-12-21 22:02:26,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-21 22:02:26,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-21 22:02:26,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:26,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-21 22:02:26,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:26,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-21 22:02:26,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:26,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 78 transitions. [2021-12-21 22:02:26,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-21 22:02:26,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 54 states and 65 transitions. [2021-12-21 22:02:26,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-21 22:02:26,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-21 22:02:26,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 65 transitions. [2021-12-21 22:02:26,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:26,879 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-21 22:02:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 65 transitions. [2021-12-21 22:02:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-21 22:02:26,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 53 states have internal predecessors, (65), 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) [2021-12-21 22:02:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-12-21 22:02:26,881 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-21 22:02:26,881 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-21 22:02:26,881 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-21 22:02:26,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 65 transitions. [2021-12-21 22:02:26,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-21 22:02:26,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:26,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:26,882 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:02:26,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:26,882 INFO L791 eck$LassoCheckResult]: Stem: 969#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 970#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 987#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 996#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1015#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1012#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 971#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 972#L559-2 [2021-12-21 22:02:26,882 INFO L793 eck$LassoCheckResult]: Loop: 972#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 979#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 982#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 983#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 976#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 972#L559-2 [2021-12-21 22:02:26,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849425, now seen corresponding path program 1 times [2021-12-21 22:02:26,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:26,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827444383] [2021-12-21 22:02:26,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:26,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:26,889 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:26,893 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:26,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash 35409939, now seen corresponding path program 1 times [2021-12-21 22:02:26,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:26,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968120926] [2021-12-21 22:02:26,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:26,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:26,898 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:26,901 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:26,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:26,901 INFO L85 PathProgramCache]: Analyzing trace with hash 391181443, now seen corresponding path program 2 times [2021-12-21 22:02:26,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:26,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591019845] [2021-12-21 22:02:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:26,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:26,908 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:26,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:27,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:27,239 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:02:27,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:02:27,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:02:27,239 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:02:27,239 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:02:27,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:02:27,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:02:27,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration7_Lasso [2021-12-21 22:02:27,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:02:27,240 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:02:27,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:27,671 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:02:27,671 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:02:27,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,678 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-12-21 22:02:27,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-21 22:02:27,681 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 [2021-12-21 22:02:27,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:27,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:27,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:27,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:27,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,710 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-12-21 22:02:27,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-21 22:02:27,716 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 [2021-12-21 22:02:27,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:27,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:27,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-21 22:02:27,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,757 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2021-12-21 22:02:27,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-21 22:02:27,770 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 [2021-12-21 22:02:27,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:27,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:27,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:27,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-21 22:02:27,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,797 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2021-12-21 22:02:27,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-21 22:02:27,799 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 [2021-12-21 22:02:27,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:27,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:27,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-21 22:02:27,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,859 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2021-12-21 22:02:27,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-21 22:02:27,861 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 [2021-12-21 22:02:27,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:27,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:27,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:27,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-21 22:02:27,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,892 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-12-21 22:02:27,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-21 22:02:27,895 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 [2021-12-21 22:02:27,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:27,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:27,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:27,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-21 22:02:27,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,928 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2021-12-21 22:02:27,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-21 22:02:27,930 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 [2021-12-21 22:02:27,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:27,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:27,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:27,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-21 22:02:27,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,956 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-12-21 22:02:27,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-21 22:02:27,958 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 [2021-12-21 22:02:27,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,966 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:27,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:27,968 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:27,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:27,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:27,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:27,987 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2021-12-21 22:02:27,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-21 22:02:27,989 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 [2021-12-21 22:02:27,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:27,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:27,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:27,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:27,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:27,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:28,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:28,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:28,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:28,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:28,021 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2021-12-21 22:02:28,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-21 22:02:28,025 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 [2021-12-21 22:02:28,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:28,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:28,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:28,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:28,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:28,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:28,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:28,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:28,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:28,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:28,074 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2021-12-21 22:02:28,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-21 22:02:28,076 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 [2021-12-21 22:02:28,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:28,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:28,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:28,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:28,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:28,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:28,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:28,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-21 22:02:28,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:28,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:28,144 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2021-12-21 22:02:28,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-21 22:02:28,146 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 [2021-12-21 22:02:28,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:28,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:28,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:28,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:28,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:28,157 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:28,162 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:28,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:28,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:28,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:28,181 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2021-12-21 22:02:28,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-21 22:02:28,184 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 [2021-12-21 22:02:28,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:28,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:28,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:28,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:28,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:28,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:28,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:28,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:28,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:28,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:28,212 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2021-12-21 22:02:28,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-21 22:02:28,215 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 [2021-12-21 22:02:28,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:28,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:28,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:28,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:28,224 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:28,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:28,228 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:02:28,239 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-21 22:02:28,239 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-21 22:02:28,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:28,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:28,241 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2021-12-21 22:02:28,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-21 22:02:28,242 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:02:28,250 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:02:28,250 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:02:28,251 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_4 Supporting invariants [] [2021-12-21 22:02:28,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-21 22:02:28,286 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-21 22:02:28,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:28,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:28,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:28,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-21 22:02:28,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:28,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:28,382 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 [2021-12-21 22:02:28,382 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 65 transitions. cyclomatic complexity: 17 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-21 22:02:28,409 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 65 transitions. cyclomatic complexity: 17. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 112 states and 133 transitions. Complement of second has 11 states. [2021-12-21 22:02:28,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-21 22:02:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-12-21 22:02:28,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-21 22:02:28,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:28,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-21 22:02:28,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:28,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-21 22:02:28,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:28,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 133 transitions. [2021-12-21 22:02:28,412 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-12-21 22:02:28,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 102 states and 122 transitions. [2021-12-21 22:02:28,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-21 22:02:28,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-21 22:02:28,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 122 transitions. [2021-12-21 22:02:28,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:28,413 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 122 transitions. [2021-12-21 22:02:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 122 transitions. [2021-12-21 22:02:28,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 60. [2021-12-21 22:02:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 59 states have internal predecessors, (73), 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) [2021-12-21 22:02:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions. [2021-12-21 22:02:28,416 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-21 22:02:28,416 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-21 22:02:28,416 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-21 22:02:28,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 73 transitions. [2021-12-21 22:02:28,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-21 22:02:28,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:28,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:28,417 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2021-12-21 22:02:28,417 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:28,417 INFO L791 eck$LassoCheckResult]: Stem: 1247#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1248#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1265#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1283#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1280#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1281#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1271#L559 assume !(0 != main_#t~nondet12#1);havoc main_#t~nondet12#1;call main_#t~mem14#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem14#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem14#1;call write~int(main_#t~nondet15#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet15#1; 1277#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1266#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1262#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1263#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1249#L559 [2021-12-21 22:02:28,417 INFO L793 eck$LassoCheckResult]: Loop: 1249#L559 assume 0 != main_#t~nondet12#1;havoc main_#t~nondet12#1;call main_#t~mem13#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(1 + main_#t~mem13#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem13#1; 1250#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1254#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1296#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1278#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1249#L559 [2021-12-21 22:02:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash -125928577, now seen corresponding path program 3 times [2021-12-21 22:02:28,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:28,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359215229] [2021-12-21 22:02:28,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:28,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:28,424 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:28,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:28,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:28,430 INFO L85 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 3 times [2021-12-21 22:02:28,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:28,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94003017] [2021-12-21 22:02:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:28,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:28,434 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:28,437 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:28,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1691624047, now seen corresponding path program 1 times [2021-12-21 22:02:28,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:28,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831400204] [2021-12-21 22:02:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:28,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:28,446 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:28,453 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:28,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-21 22:02:29,032 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:02:29,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:02:29,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:02:29,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:02:29,032 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:02:29,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:02:29,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:02:29,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration8_Lasso [2021-12-21 22:02:29,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:02:29,033 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:02:29,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:29,628 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:02:29,628 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:02:29,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,646 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2021-12-21 22:02:29,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-21 22:02:29,649 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 [2021-12-21 22:02:29,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:29,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,656 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:29,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:29,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:29,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,680 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2021-12-21 22:02:29,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-21 22:02:29,683 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 [2021-12-21 22:02:29,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:29,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:29,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:29,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:29,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,711 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2021-12-21 22:02:29,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-21 22:02:29,713 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 [2021-12-21 22:02:29,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:29,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:29,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:29,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,742 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2021-12-21 22:02:29,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-21 22:02:29,744 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 [2021-12-21 22:02:29,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:29,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:29,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:29,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,792 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2021-12-21 22:02:29,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-21 22:02:29,796 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 [2021-12-21 22:02:29,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:29,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:29,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:29,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-21 22:02:29,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,836 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2021-12-21 22:02:29,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-21 22:02:29,838 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 [2021-12-21 22:02:29,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:29,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:29,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:29,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,865 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2021-12-21 22:02:29,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-21 22:02:29,867 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 [2021-12-21 22:02:29,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:29,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:29,881 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-21 22:02:29,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,905 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2021-12-21 22:02:29,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-21 22:02:29,907 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 [2021-12-21 22:02:29,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:29,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:29,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:29,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:29,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,948 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2021-12-21 22:02:29,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-21 22:02:29,950 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 [2021-12-21 22:02:29,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:29,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:29,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:29,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:29,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:29,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:29,964 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:02:29,969 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-21 22:02:29,969 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-12-21 22:02:29,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:29,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:29,971 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2021-12-21 22:02:29,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-21 22:02:29,973 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:02:29,981 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:02:29,981 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:02:29,981 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_5) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_5 Supporting invariants [] [2021-12-21 22:02:30,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:30,025 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-21 22:02:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:30,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:30,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:30,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:02:30,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:30,085 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 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-21 22:02:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:30,111 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-21 22:02:30,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-12-21 22:02:30,133 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 101 states and 120 transitions. Complement of second has 7 states. [2021-12-21 22:02:30,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-12-21 22:02:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-21 22:02:30,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-21 22:02:30,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:30,135 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:02:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:30,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:30,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:30,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:02:30,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:30,189 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 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-21 22:02:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:30,243 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-21 22:02:30,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-12-21 22:02:30,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:30,267 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 101 states and 120 transitions. Complement of second has 7 states. [2021-12-21 22:02:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:30,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-12-21 22:02:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-21 22:02:30,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-21 22:02:30,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:30,269 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:02:30,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:30,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:30,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:30,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 22:02:30,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:30,338 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 0 case distinctions, treesize of input 30 treesize of output 18 [2021-12-21 22:02:30,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:30,367 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 3 loop predicates [2021-12-21 22:02:30,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-12-21 22:02:30,395 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 73 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 83 states and 97 transitions. Complement of second has 6 states. [2021-12-21 22:02:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:30,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-12-21 22:02:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-12-21 22:02:30,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-21 22:02:30,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:30,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 5 letters. [2021-12-21 22:02:30,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:30,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 10 letters. [2021-12-21 22:02:30,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:30,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 97 transitions. [2021-12-21 22:02:30,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:02:30,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 62 states and 74 transitions. [2021-12-21 22:02:30,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-21 22:02:30,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-21 22:02:30,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 74 transitions. [2021-12-21 22:02:30,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-21 22:02:30,399 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-12-21 22:02:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 74 transitions. [2021-12-21 22:02:30,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2021-12-21 22:02:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 55 states have (on average 1.2) internal successors, (66), 54 states have internal predecessors, (66), 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) [2021-12-21 22:02:30,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-12-21 22:02:30,401 INFO L704 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-21 22:02:30,401 INFO L587 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-21 22:02:30,401 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-21 22:02:30,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 66 transitions. [2021-12-21 22:02:30,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-21 22:02:30,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:02:30,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:02:30,402 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 1, 1, 1] [2021-12-21 22:02:30,402 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-21 22:02:30,402 INFO L791 eck$LassoCheckResult]: Stem: 1824#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1843#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1849#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1848#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1847#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1844#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1846#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1873#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1872#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1871#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1859#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 1852#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1857#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1855#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1854#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1851#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1829#L559-2 [2021-12-21 22:02:30,403 INFO L793 eck$LassoCheckResult]: Loop: 1829#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 1830#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 1856#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 1833#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1834#L552 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1;call main_#t~mem11#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);call write~int(main_#t~mem11#1 - 1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~mem11#1; 1829#L559-2 [2021-12-21 22:02:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1675310445, now seen corresponding path program 1 times [2021-12-21 22:02:30,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:30,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829126205] [2021-12-21 22:02:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:30,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:30,412 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:30,419 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 2 times [2021-12-21 22:02:30,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:30,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104509842] [2021-12-21 22:02:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:30,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:30,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:30,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:30,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:30,426 INFO L85 PathProgramCache]: Analyzing trace with hash 143216577, now seen corresponding path program 2 times [2021-12-21 22:02:30,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:02:30,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136369885] [2021-12-21 22:02:30,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:02:30,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:02:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:30,435 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:02:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:02:30,443 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:02:31,048 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:02:31,049 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:02:31,049 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:02:31,049 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:02:31,049 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:02:31,049 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,049 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:02:31,049 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:02:31,049 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration9_Lasso [2021-12-21 22:02:31,049 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:02:31,050 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:02:31,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:02:31,396 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:02:31,397 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:02:31,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,398 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2021-12-21 22:02:31,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-21 22:02:31,400 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 [2021-12-21 22:02:31,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,408 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:31,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:31,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-21 22:02:31,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,426 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2021-12-21 22:02:31,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-21 22:02:31,429 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 [2021-12-21 22:02:31,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:31,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,453 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2021-12-21 22:02:31,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-21 22:02:31,455 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 [2021-12-21 22:02:31,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:31,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,480 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2021-12-21 22:02:31,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-21 22:02:31,481 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 [2021-12-21 22:02:31,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-21 22:02:31,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,505 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2021-12-21 22:02:31,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-21 22:02:31,556 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 [2021-12-21 22:02:31,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:31,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,606 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2021-12-21 22:02:31,612 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 [2021-12-21 22:02:31,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:31,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:31,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-21 22:02:31,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:31,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,639 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2021-12-21 22:02:31,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-21 22:02:31,640 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 [2021-12-21 22:02:31,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:31,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,664 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2021-12-21 22:02:31,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-21 22:02:31,666 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 [2021-12-21 22:02:31,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:31,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:31,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-21 22:02:31,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,691 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2021-12-21 22:02:31,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-21 22:02:31,693 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 [2021-12-21 22:02:31,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-12-21 22:02:31,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,717 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2021-12-21 22:02:31,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-21 22:02:31,719 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 [2021-12-21 22:02:31,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-12-21 22:02:31,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,744 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2021-12-21 22:02:31,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-12-21 22:02:31,746 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 [2021-12-21 22:02:31,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:02:31,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:02:31,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:02:31,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-12-21 22:02:31,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,785 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2021-12-21 22:02:31,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-12-21 22:02:31,789 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 [2021-12-21 22:02:31,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:31,798 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:31,808 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:31,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,830 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2021-12-21 22:02:31,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-12-21 22:02:31,832 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 [2021-12-21 22:02:31,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:31,841 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:31,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:02:31,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:31,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,876 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2021-12-21 22:02:31,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-12-21 22:02:31,878 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 [2021-12-21 22:02:31,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:02:31,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:02:31,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:02:31,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:02:31,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-21 22:02:31,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-21 22:02:31,901 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:02:31,905 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-21 22:02:31,905 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-21 22:02:31,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:02:31,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:02:31,911 INFO L229 MonitoredProcess]: Starting monitored process 70 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) [2021-12-21 22:02:31,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-12-21 22:02:31,913 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:02:31,920 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-21 22:02:31,920 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:02:31,920 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_6) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0#1.base) ULTIMATE.start_main_~y~0#1.offset)_6 Supporting invariants [] [2021-12-21 22:02:31,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-12-21 22:02:31,958 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-21 22:02:31,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:31,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:31,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:32,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:02:32,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:32,061 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-21 22:02:32,061 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-21 22:02:32,079 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 63 states and 74 transitions. Complement of second has 9 states. [2021-12-21 22:02:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-21 22:02:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-21 22:02:32,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-21 22:02:32,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:32,084 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:02:32,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:32,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:32,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:32,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:02:32,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:32,180 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-21 22:02:32,180 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-21 22:02:32,195 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 63 states and 74 transitions. Complement of second has 9 states. [2021-12-21 22:02:32,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-21 22:02:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-21 22:02:32,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-21 22:02:32,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:32,196 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-21 22:02:32,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:02:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:32,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:02:32,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:02:32,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:02:32,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:02:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:02:32,293 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 3 loop predicates [2021-12-21 22:02:32,293 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-21 22:02:32,310 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 66 transitions. cyclomatic complexity: 17. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 72 states and 84 transitions. Complement of second has 8 states. [2021-12-21 22:02:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-21 22:02:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-12-21 22:02:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-21 22:02:32,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-21 22:02:32,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:32,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 22 letters. Loop has 5 letters. [2021-12-21 22:02:32,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:32,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 10 letters. [2021-12-21 22:02:32,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:02:32,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 84 transitions. [2021-12-21 22:02:32,312 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:02:32,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 0 states and 0 transitions. [2021-12-21 22:02:32,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:02:32,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:02:32,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:02:32,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:02:32,312 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:02:32,313 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:02:32,313 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:02:32,313 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-21 22:02:32,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:02:32,313 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:02:32,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:02:32,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:02:32 BoogieIcfgContainer [2021-12-21 22:02:32,317 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:02:32,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:02:32,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:02:32,317 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:02:32,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:02:20" (3/4) ... [2021-12-21 22:02:32,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:02:32,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:02:32,320 INFO L158 Benchmark]: Toolchain (without parser) took 12065.32ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 120.3MB in the beginning and 99.3MB in the end (delta: 21.0MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2021-12-21 22:02:32,320 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:02:32,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.82ms. Allocated memory is still 142.6MB. Free memory was 120.3MB in the beginning and 112.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:02:32,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.07ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:02:32,320 INFO L158 Benchmark]: Boogie Preprocessor took 32.13ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 109.3MB in the end (delta: 780.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:02:32,320 INFO L158 Benchmark]: RCFGBuilder took 336.73ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 98.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:02:32,321 INFO L158 Benchmark]: BuchiAutomizer took 11348.27ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 98.3MB in the beginning and 100.3MB in the end (delta: -2.1MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2021-12-21 22:02:32,321 INFO L158 Benchmark]: Witness Printer took 2.15ms. Allocated memory is still 207.6MB. Free memory was 100.3MB in the beginning and 99.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:02:32,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.82ms. Allocated memory is still 142.6MB. Free memory was 120.3MB in the beginning and 112.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.07ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 110.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.13ms. Allocated memory is still 142.6MB. Free memory was 110.1MB in the beginning and 109.3MB in the end (delta: 780.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.73ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 98.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 11348.27ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 98.3MB in the beginning and 100.3MB in the end (delta: -2.1MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Witness Printer took 2.15ms. Allocated memory is still 207.6MB. Free memory was 100.3MB in the beginning and 99.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (3 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 8 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 6 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.2s and 10 iterations. TraceHistogramMax:3. Analysis of lassos took 9.5s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 67 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 60 states and ocurred in iteration 7. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 24 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 364 IncrementalHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 115 mSDtfsCounter, 364 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital227 mio100 ax108 hnf100 lsp87 ukn63 mio100 lsp39 div100 bol100 ite100 ukn100 eq178 hnf89 smp94 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 5 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 22:02:32,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:32,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-12-21 22:02:32,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-21 22:02:32,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE