./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 09:26:52,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:26:52,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:26:52,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:26:52,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:26:52,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:26:52,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:26:52,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:26:52,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:26:52,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:26:52,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:26:52,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:26:52,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:26:52,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:26:52,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:26:52,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:26:52,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:26:52,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:26:52,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:26:52,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:26:52,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:26:52,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:26:52,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:26:52,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:26:52,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:26:52,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:26:52,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:26:52,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:26:52,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:26:52,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:26:52,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:26:52,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:26:52,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:26:52,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:26:52,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:26:52,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:26:52,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:26:52,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:26:52,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:26:52,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:26:52,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:26:52,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-16 09:26:52,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:26:52,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:26:52,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:26:52,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:26:52,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:26:52,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:26:52,313 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:26:52,314 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-16 09:26:52,314 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-16 09:26:52,314 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-16 09:26:52,319 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-16 09:26:52,319 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-16 09:26:52,319 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-16 09:26:52,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:26:52,320 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:26:52,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:26:52,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:26:52,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-16 09:26:52,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-16 09:26:52,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-16 09:26:52,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:26:52,321 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-16 09:26:52,321 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:26:52,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-16 09:26:52,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:26:52,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:26:52,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:26:52,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:26:52,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:26:52,325 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-16 09:26:52,325 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5964f352b4fb43ac691f9b95d86e187c9f5cb80a14ac63e8c25af4413cd385ce [2021-12-16 09:26:52,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:26:52,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:26:52,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:26:52,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:26:52,546 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:26:52,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-16 09:26:52,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8ca7b1b/6d19920a6e7244b4b0a29bb8b0f671ef/FLAG3c530f04f [2021-12-16 09:26:53,039 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:26:53,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-alloca.i [2021-12-16 09:26:53,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8ca7b1b/6d19920a6e7244b4b0a29bb8b0f671ef/FLAG3c530f04f [2021-12-16 09:26:53,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8ca7b1b/6d19920a6e7244b4b0a29bb8b0f671ef [2021-12-16 09:26:53,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:26:53,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:26:53,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:26:53,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:26:53,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:26:53,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd055c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53, skipping insertion in model container [2021-12-16 09:26:53,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:26:53,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:26:53,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:26:53,333 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:26:53,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:26:53,418 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:26:53,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53 WrapperNode [2021-12-16 09:26:53,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:26:53,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:26:53,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:26:53,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:26:53,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,461 INFO L137 Inliner]: procedures = 110, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-12-16 09:26:53,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:26:53,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:26:53,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:26:53,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:26:53,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:26:53,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:26:53,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:26:53,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:26:53,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (1/1) ... [2021-12-16 09:26:53,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:53,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:53,514 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) [2021-12-16 09:26:53,527 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 [2021-12-16 09:26:53,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 09:26:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 09:26:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 09:26:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 09:26:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:26:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:26:53,678 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:26:53,680 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:26:53,831 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:26:53,837 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:26:53,837 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 09:26:53,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:53 BoogieIcfgContainer [2021-12-16 09:26:53,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:26:53,839 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-16 09:26:53,839 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-16 09:26:53,841 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-16 09:26:53,842 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:53,842 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.12 09:26:53" (1/3) ... [2021-12-16 09:26:53,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34e7a3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:26:53, skipping insertion in model container [2021-12-16 09:26:53,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:53,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:26:53" (2/3) ... [2021-12-16 09:26:53,843 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34e7a3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.12 09:26:53, skipping insertion in model container [2021-12-16 09:26:53,843 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-16 09:26:53,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:53" (3/3) ... [2021-12-16 09:26:53,844 INFO L388 chiAutomizerObserver]: Analyzing ICFG Urban-alloca.i [2021-12-16 09:26:53,881 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-16 09:26:53,882 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-16 09:26:53,882 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-16 09:26:53,882 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-16 09:26:53,882 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-16 09:26:53,882 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-16 09:26:53,883 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-16 09:26:53,883 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-16 09:26:53,895 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) [2021-12-16 09:26:53,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:53,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:53,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:53,923 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-16 09:26:53,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:53,924 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-16 09:26:53,924 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) [2021-12-16 09:26:53,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:53,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:53,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:53,929 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-16 09:26:53,929 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:53,934 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 [2021-12-16 09:26:53,935 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 [2021-12-16 09:26:53,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:53,954 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-16 09:26:53,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:53,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133622057] [2021-12-16 09:26:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:53,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:54,091 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:54,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:54,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:54,135 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 1 times [2021-12-16 09:26:54,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:54,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845496825] [2021-12-16 09:26:54,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:54,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:54,173 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:54,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:54,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:54,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849423, now seen corresponding path program 1 times [2021-12-16 09:26:54,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:54,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683334643] [2021-12-16 09:26:54,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:54,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:54,241 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:54,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:54,757 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:54,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:54,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:54,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:54,758 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:54,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:54,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:54,760 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:54,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration1_Lasso [2021-12-16 09:26:54,760 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:54,760 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:54,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:55,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:26:55,390 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:26:55,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:55,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:55,399 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) [2021-12-16 09:26:55,407 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 [2021-12-16 09:26:55,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:55,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:55,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:55,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:55,407 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 [2021-12-16 09:26:55,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:55,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:55,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:55,461 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 [2021-12-16 09:26:55,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:55,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:55,464 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) [2021-12-16 09:26:55,465 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 [2021-12-16 09:26:55,466 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 [2021-12-16 09:26:55,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:55,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:55,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:55,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:55,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:55,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:55,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:55,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:55,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:55,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:55,527 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) [2021-12-16 09:26:55,538 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 [2021-12-16 09:26:55,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:55,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:55,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:55,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:55,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:55,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:55,569 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 [2021-12-16 09:26:55,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:55,599 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 [2021-12-16 09:26:55,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:55,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:55,601 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) [2021-12-16 09:26:55,603 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 [2021-12-16 09:26:55,608 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 [2021-12-16 09:26:55,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:55,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:55,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:55,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:55,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:55,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:55,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:55,626 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:55,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:55,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:55,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:55,644 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) [2021-12-16 09:26:55,652 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 [2021-12-16 09:26:55,653 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 [2021-12-16 09:26:55,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:55,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:55,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:55,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:55,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:55,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:55,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:55,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:26:55,681 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-16 09:26:55,681 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-16 09:26:55,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:55,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:55,688 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) [2021-12-16 09:26:55,690 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 [2021-12-16 09:26:55,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:26:55,736 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-16 09:26:55,736 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:26:55,737 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 [] [2021-12-16 09:26:55,760 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 [2021-12-16 09:26:55,797 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-16 09:26:55,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:55,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:26:55,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:55,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 09:26:55,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:55,947 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 [2021-12-16 09:26:55,949 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-12-16 09:26:56,011 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 36 states and 48 transitions. Complement of second has 10 states. [2021-12-16 09:26:56,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-16 09:26:56,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-12-16 09:26:56,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2021-12-16 09:26:56,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 2 letters. Loop has 5 letters. [2021-12-16 09:26:56,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:56,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-16 09:26:56,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:56,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 2 letters. Loop has 10 letters. [2021-12-16 09:26:56,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:56,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2021-12-16 09:26:56,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:56,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 29 transitions. [2021-12-16 09:26:56,027 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-16 09:26:56,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-16 09:26:56,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2021-12-16 09:26:56,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:56,028 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 29 transitions. [2021-12-16 09:26:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2021-12-16 09:26:56,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-12-16 09:26:56,049 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) [2021-12-16 09:26:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-12-16 09:26:56,050 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-16 09:26:56,050 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-12-16 09:26:56,050 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-16 09:26:56,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2021-12-16 09:26:56,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:56,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:56,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:56,052 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:56,052 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:56,052 INFO L791 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 146#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; 160#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; 153#L550-1 assume !main_#t~short6#1; 157#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); 154#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 155#L552 [2021-12-16 09:26:56,053 INFO L793 eck$LassoCheckResult]: Loop: 155#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; 148#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; 151#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; 159#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); 162#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 155#L552 [2021-12-16 09:26:56,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:56,053 INFO L85 PathProgramCache]: Analyzing trace with hash 889571371, now seen corresponding path program 1 times [2021-12-16 09:26:56,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:56,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639064408] [2021-12-16 09:26:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:56,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:56,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:56,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639064408] [2021-12-16 09:26:56,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639064408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:26:56,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:26:56,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:26:56,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307963308] [2021-12-16 09:26:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:26:56,092 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-16 09:26:56,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 1 times [2021-12-16 09:26:56,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:56,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687375230] [2021-12-16 09:26:56,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:56,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,127 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:56,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:56,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 09:26:56,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 09:26:56,290 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) [2021-12-16 09:26:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:56,303 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-12-16 09:26:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 09:26:56,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-12-16 09:26:56,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:56,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2021-12-16 09:26:56,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-16 09:26:56,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-16 09:26:56,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-12-16 09:26:56,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:56,309 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-16 09:26:56,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-12-16 09:26:56,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-16 09:26:56,310 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) [2021-12-16 09:26:56,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-12-16 09:26:56,311 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-16 09:26:56,311 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-16 09:26:56,311 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-16 09:26:56,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-12-16 09:26:56,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-16 09:26:56,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:56,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:56,313 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-16 09:26:56,313 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:56,313 INFO L791 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 191#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 204#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 198#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 202#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 199#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 200#L552 [2021-12-16 09:26:56,313 INFO L793 eck$LassoCheckResult]: Loop: 200#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; 193#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; 196#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; 207#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); 206#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 200#L552 [2021-12-16 09:26:56,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2021-12-16 09:26:56,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:56,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773937994] [2021-12-16 09:26:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:56,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:56,373 INFO L85 PathProgramCache]: Analyzing trace with hash 51012381, now seen corresponding path program 2 times [2021-12-16 09:26:56,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:56,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823032531] [2021-12-16 09:26:56,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:56,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:56,377 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 [2021-12-16 09:26:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,385 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:56,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:56,392 INFO L85 PathProgramCache]: Analyzing trace with hash -364197003, now seen corresponding path program 1 times [2021-12-16 09:26:56,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:56,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287761711] [2021-12-16 09:26:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:56,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,406 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:56,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:56,829 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:56,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:56,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:56,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:56,829 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:56,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:56,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:56,829 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:56,829 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration3_Lasso [2021-12-16 09:26:56,829 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:56,829 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:56,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:56,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:57,330 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:26:57,331 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:26:57,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,336 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) [2021-12-16 09:26:57,337 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 [2021-12-16 09:26:57,338 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 [2021-12-16 09:26:57,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:57,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:57,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:57,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,377 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 [2021-12-16 09:26:57,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,378 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) [2021-12-16 09:26:57,379 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 [2021-12-16 09:26:57,380 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 [2021-12-16 09:26:57,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:57,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:57,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:57,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:57,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,407 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) [2021-12-16 09:26:57,408 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 [2021-12-16 09:26:57,410 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 [2021-12-16 09:26:57,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:57,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:57,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:57,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,443 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 [2021-12-16 09:26:57,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,444 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) [2021-12-16 09:26:57,445 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 [2021-12-16 09:26:57,447 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 [2021-12-16 09:26:57,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:57,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:57,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:57,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,502 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) [2021-12-16 09:26:57,510 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 [2021-12-16 09:26:57,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,518 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 [2021-12-16 09:26:57,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:57,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:57,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,560 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 [2021-12-16 09:26:57,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,561 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) [2021-12-16 09:26:57,562 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 [2021-12-16 09:26:57,564 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 [2021-12-16 09:26:57,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:57,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:57,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:57,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,587 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 [2021-12-16 09:26:57,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,588 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) [2021-12-16 09:26:57,590 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 [2021-12-16 09:26:57,591 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 [2021-12-16 09:26:57,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:57,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:57,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:57,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,614 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 [2021-12-16 09:26:57,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,616 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) [2021-12-16 09:26:57,616 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 [2021-12-16 09:26:57,617 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 [2021-12-16 09:26:57,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:26:57,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:26:57,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:26:57,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,640 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 [2021-12-16 09:26:57,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,642 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) [2021-12-16 09:26:57,642 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 [2021-12-16 09:26:57,644 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 [2021-12-16 09:26:57,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:57,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:57,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:26:57,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-16 09:26:57,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,675 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) [2021-12-16 09:26:57,676 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 [2021-12-16 09:26:57,679 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 [2021-12-16 09:26:57,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:26:57,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:26:57,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:26:57,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:26:57,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:26:57,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:26:57,691 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:26:57,698 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-16 09:26:57,698 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-16 09:26:57,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:57,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:57,708 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) [2021-12-16 09:26:57,710 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 [2021-12-16 09:26:57,711 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:26:57,744 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:26:57,744 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:26:57,745 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 [] [2021-12-16 09:26:57,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-16 09:26:57,788 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2021-12-16 09:26:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:57,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:26:57,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:57,862 INFO L388 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 [2021-12-16 09:26:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:57,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:26:57,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:57,948 INFO L388 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 [2021-12-16 09:26:57,960 INFO L388 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 [2021-12-16 09:26:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:58,000 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 [2021-12-16 09:26:58,000 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) [2021-12-16 09:26:58,084 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. [2021-12-16 09:26:58,086 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 [2021-12-16 09:26:58,087 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) [2021-12-16 09:26:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2021-12-16 09:26:58,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 5 letters. [2021-12-16 09:26:58,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:58,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-16 09:26:58,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:58,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 6 letters. Loop has 10 letters. [2021-12-16 09:26:58,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:26:58,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 69 transitions. [2021-12-16 09:26:58,090 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-16 09:26:58,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 48 states and 68 transitions. [2021-12-16 09:26:58,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-16 09:26:58,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-12-16 09:26:58,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2021-12-16 09:26:58,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:58,091 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2021-12-16 09:26:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2021-12-16 09:26:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2021-12-16 09:26:58,095 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) [2021-12-16 09:26:58,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2021-12-16 09:26:58,096 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-16 09:26:58,096 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-12-16 09:26:58,096 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-16 09:26:58,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 64 transitions. [2021-12-16 09:26:58,097 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2021-12-16 09:26:58,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:58,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:58,098 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:58,098 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1] [2021-12-16 09:26:58,098 INFO L791 eck$LassoCheckResult]: Stem: 369#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 370#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem7#1, main_#t~nondet8#1, main_#t~mem9#1, main_#t~nondet10#1, main_#t~mem11#1, main_#t~nondet12#1, main_#t~mem13#1, main_#t~mem14#1, main_#t~nondet15#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~short6#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~y~0#1.base, main_~y~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 389#L559-2 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short6#1 := 0 != main_#t~mem4#1; 379#L550-1 assume main_#t~short6#1;call main_#t~mem5#1 := read~int(main_~y~0#1.base, main_~y~0#1.offset, 4);main_#t~short6#1 := main_#t~mem5#1 > 0; 405#L550-3 assume !!main_#t~short6#1;havoc main_#t~mem4#1;havoc main_#t~mem5#1;havoc main_#t~short6#1;call main_#t~mem7#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 401#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 399#L552 assume 0 != main_#t~nondet8#1;havoc main_#t~nondet8#1;call main_#t~mem9#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);call write~int(main_#t~mem9#1 - 1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(main_#t~nondet10#1, main_~y~0#1.base, main_~y~0#1.offset, 4);havoc main_#t~nondet10#1; 400#L559-2 [2021-12-16 09:26:58,098 INFO L793 eck$LassoCheckResult]: Loop: 400#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; 407#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; 406#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); 380#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 371#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; 372#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; 387#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; 383#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); 384#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 403#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; 400#L559-2 [2021-12-16 09:26:58,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:58,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 2 times [2021-12-16 09:26:58,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:58,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635787515] [2021-12-16 09:26:58,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:58,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:58,110 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:58,118 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:58,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:58,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1870690047, now seen corresponding path program 1 times [2021-12-16 09:26:58,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:58,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262902323] [2021-12-16 09:26:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:58,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:58,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:58,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262902323] [2021-12-16 09:26:58,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262902323] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:26:58,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291784377] [2021-12-16 09:26:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:58,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:26:58,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:58,224 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:26:58,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-16 09:26:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:58,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-16 09:26:58,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:58,392 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 [2021-12-16 09:26:58,394 INFO L388 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 36 treesize of output 20 [2021-12-16 09:26:58,424 INFO L388 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 [2021-12-16 09:26:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:58,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:26:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:58,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291784377] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:26:58,535 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:26:58,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2021-12-16 09:26:58,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141382210] [2021-12-16 09:26:58,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:26:58,536 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-16 09:26:58,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:58,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 09:26:58,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-16 09:26:58,537 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. cyclomatic complexity: 24 Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2021-12-16 09:26:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:58,642 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2021-12-16 09:26:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 09:26:58,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 85 transitions. [2021-12-16 09:26:58,649 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-16 09:26:58,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 62 states and 80 transitions. [2021-12-16 09:26:58,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-12-16 09:26:58,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-12-16 09:26:58,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 80 transitions. [2021-12-16 09:26:58,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:58,654 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 80 transitions. [2021-12-16 09:26:58,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 80 transitions. [2021-12-16 09:26:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2021-12-16 09:26:58,662 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) [2021-12-16 09:26:58,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2021-12-16 09:26:58,665 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-16 09:26:58,665 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 67 transitions. [2021-12-16 09:26:58,665 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-16 09:26:58,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 67 transitions. [2021-12-16 09:26:58,666 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 24 [2021-12-16 09:26:58,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:58,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:58,667 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:58,667 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:58,668 INFO L791 eck$LassoCheckResult]: Stem: 553#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 554#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; 572#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; 584#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; 582#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); 583#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 579#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; 556#L559-2 [2021-12-16 09:26:58,668 INFO L793 eck$LassoCheckResult]: Loop: 556#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; 564#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; 567#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); 568#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 555#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; 556#L559-2 [2021-12-16 09:26:58,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:58,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849167, now seen corresponding path program 3 times [2021-12-16 09:26:58,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:58,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746462209] [2021-12-16 09:26:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:58,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:58,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:58,707 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:58,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:58,710 INFO L85 PathProgramCache]: Analyzing trace with hash 35409937, now seen corresponding path program 2 times [2021-12-16 09:26:58,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:58,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219223765] [2021-12-16 09:26:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:58,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:58,717 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:58,726 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:58,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:58,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1594795075, now seen corresponding path program 1 times [2021-12-16 09:26:58,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:58,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128910448] [2021-12-16 09:26:58,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:58,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:58,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:26:58,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128910448] [2021-12-16 09:26:58,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128910448] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:26:58,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977698243] [2021-12-16 09:26:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:58,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:26:58,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:26:58,852 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) [2021-12-16 09:26:58,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-16 09:26:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:26:58,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-16 09:26:58,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:26:58,940 INFO L388 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 [2021-12-16 09:26:58,985 INFO L388 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 [2021-12-16 09:26:58,990 INFO L388 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 [2021-12-16 09:26:59,040 INFO L388 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 [2021-12-16 09:26:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:26:59,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:26:59,099 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_144 Int) (v_ArrVal_143 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base|))) (or (< (+ v_ArrVal_144 1) (select .cse0 |c_ULTIMATE.start_main_~x~0#1.offset|)) (<= 0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_144)) |c_ULTIMATE.start_main_~y~0#1.base| v_ArrVal_143) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))))) is different from false [2021-12-16 09:26:59,117 WARN L838 $PredicateComparison]: unable to prove that (or (<= |c_ULTIMATE.start_main_#t~mem7#1| 0) (forall ((v_ArrVal_144 Int) (v_ArrVal_143 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base|))) (or (< (+ v_ArrVal_144 1) (select .cse0 |c_ULTIMATE.start_main_~x~0#1.offset|)) (<= 0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_144)) |c_ULTIMATE.start_main_~y~0#1.base| v_ArrVal_143) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)))))) is different from false [2021-12-16 09:26:59,134 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-16 09:26:59,135 INFO L388 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 35 treesize of output 27 [2021-12-16 09:26:59,145 INFO L388 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 31 treesize of output 23 [2021-12-16 09:26:59,149 INFO L388 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 [2021-12-16 09:26:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-12-16 09:26:59,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977698243] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:26:59,168 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:26:59,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2021-12-16 09:26:59,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809459821] [2021-12-16 09:26:59,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:26:59,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:26:59,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-16 09:26:59,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=138, Unknown=2, NotChecked=50, Total=240 [2021-12-16 09:26:59,309 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. cyclomatic complexity: 22 Second operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 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) [2021-12-16 09:26:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:26:59,449 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-12-16 09:26:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 09:26:59,450 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. [2021-12-16 09:26:59,451 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-16 09:26:59,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 40 states and 50 transitions. [2021-12-16 09:26:59,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-16 09:26:59,452 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-16 09:26:59,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2021-12-16 09:26:59,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:26:59,452 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-16 09:26:59,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2021-12-16 09:26:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-16 09:26:59,454 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) [2021-12-16 09:26:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-12-16 09:26:59,455 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-16 09:26:59,455 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-12-16 09:26:59,455 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-16 09:26:59,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-12-16 09:26:59,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-16 09:26:59,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:26:59,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:26:59,456 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:26:59,456 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:26:59,456 INFO L791 eck$LassoCheckResult]: Stem: 742#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 743#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; 760#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; 768#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; 771#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); 770#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 769#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; 761#L559-2 [2021-12-16 09:26:59,456 INFO L793 eck$LassoCheckResult]: Loop: 761#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; 774#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; 773#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); 752#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 753#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; 761#L559-2 [2021-12-16 09:26:59,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:59,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849169, now seen corresponding path program 1 times [2021-12-16 09:26:59,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:59,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555301609] [2021-12-16 09:26:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:59,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:59,465 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:59,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:59,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 1 times [2021-12-16 09:26:59,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:59,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59077042] [2021-12-16 09:26:59,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:59,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:59,477 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:59,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:59,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:26:59,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1652053123, now seen corresponding path program 2 times [2021-12-16 09:26:59,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:26:59,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124723458] [2021-12-16 09:26:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:26:59,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:26:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:59,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:26:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:26:59,506 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:26:59,923 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:26:59,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:26:59,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:26:59,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:26:59,923 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:26:59,923 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:26:59,923 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:26:59,923 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:26:59,923 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration6_Lasso [2021-12-16 09:26:59,923 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:26:59,923 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:26:59,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:59,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:59,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:59,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:26:59,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:00,381 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:27:00,382 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:27:00,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,399 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2021-12-16 09:27:00,401 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 [2021-12-16 09:27:00,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-16 09:27:00,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:00,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:00,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:00,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:00,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:00,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:00,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:00,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:00,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:00,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,433 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) [2021-12-16 09:27:00,436 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 [2021-12-16 09:27:00,437 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 [2021-12-16 09:27:00,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:00,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:00,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:00,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:00,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:00,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:00,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:00,463 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 [2021-12-16 09:27:00,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,465 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) [2021-12-16 09:27:00,475 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 [2021-12-16 09:27:00,475 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 [2021-12-16 09:27:00,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:00,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:00,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:00,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:00,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:00,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:00,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:00,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:00,498 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 [2021-12-16 09:27:00,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,500 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) [2021-12-16 09:27:00,506 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 [2021-12-16 09:27:00,507 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 [2021-12-16 09:27:00,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:00,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:00,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:00,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:00,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:00,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:00,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:00,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:00,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-16 09:27:00,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,531 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) [2021-12-16 09:27:00,532 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 [2021-12-16 09:27:00,533 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 [2021-12-16 09:27:00,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:00,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:00,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:00,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:00,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:00,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:00,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:00,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-16 09:27:00,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,570 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) [2021-12-16 09:27:00,571 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 [2021-12-16 09:27:00,572 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 [2021-12-16 09:27:00,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:00,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:00,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:00,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:00,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:00,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:00,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:00,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-16 09:27:00,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,604 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) [2021-12-16 09:27:00,604 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 [2021-12-16 09:27:00,605 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 [2021-12-16 09:27:00,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:00,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:00,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:00,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:00,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:00,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:00,616 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:27:00,620 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-16 09:27:00,620 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-16 09:27:00,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:00,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:00,622 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) [2021-12-16 09:27:00,624 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 [2021-12-16 09:27:00,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:27:00,630 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:27:00,631 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:27:00,631 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 [] [2021-12-16 09:27:00,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-16 09:27:00,662 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-16 09:27:00,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:00,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:00,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:00,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:27:00,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:00,778 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 [2021-12-16 09:27:00,778 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) [2021-12-16 09:27:00,809 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. [2021-12-16 09:27:00,810 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 [2021-12-16 09:27:00,810 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) [2021-12-16 09:27:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-16 09:27:00,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-16 09:27:00,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:00,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-16 09:27:00,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:00,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-16 09:27:00,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:00,811 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 78 transitions. [2021-12-16 09:27:00,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-16 09:27:00,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 54 states and 65 transitions. [2021-12-16 09:27:00,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-12-16 09:27:00,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-12-16 09:27:00,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 65 transitions. [2021-12-16 09:27:00,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:27:00,813 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-16 09:27:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 65 transitions. [2021-12-16 09:27:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-16 09:27:00,816 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) [2021-12-16 09:27:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-12-16 09:27:00,817 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-16 09:27:00,817 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-12-16 09:27:00,817 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-16 09:27:00,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 65 transitions. [2021-12-16 09:27:00,817 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2021-12-16 09:27:00,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:27:00,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:27:00,818 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:27:00,818 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:27:00,818 INFO L791 eck$LassoCheckResult]: Stem: 954#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 955#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; 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; 981#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; 996#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); 994#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 956#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; 957#L559-2 [2021-12-16 09:27:00,818 INFO L793 eck$LassoCheckResult]: Loop: 957#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; 960#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; 970#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); 984#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 964#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; 957#L559-2 [2021-12-16 09:27:00,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:00,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1806849425, now seen corresponding path program 1 times [2021-12-16 09:27:00,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:00,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320203849] [2021-12-16 09:27:00,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:00,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:00,827 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:00,834 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:00,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:00,834 INFO L85 PathProgramCache]: Analyzing trace with hash 35409939, now seen corresponding path program 1 times [2021-12-16 09:27:00,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:00,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586575929] [2021-12-16 09:27:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:00,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:00,840 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:00,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:00,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:00,845 INFO L85 PathProgramCache]: Analyzing trace with hash 391181443, now seen corresponding path program 2 times [2021-12-16 09:27:00,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:00,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586195447] [2021-12-16 09:27:00,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:00,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:00,855 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:00,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:01,235 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:27:01,235 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:27:01,235 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:27:01,235 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:27:01,235 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:27:01,235 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,235 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:27:01,235 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:27:01,235 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration7_Lasso [2021-12-16 09:27:01,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:27:01,235 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:27:01,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:01,601 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 [2021-12-16 09:27:01,697 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:27:01,698 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:27:01,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,699 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) [2021-12-16 09:27:01,700 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 [2021-12-16 09:27:01,702 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 [2021-12-16 09:27:01,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:01,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:01,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:01,709 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,727 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 [2021-12-16 09:27:01,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,728 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) [2021-12-16 09:27:01,729 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 [2021-12-16 09:27:01,730 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 [2021-12-16 09:27:01,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:01,737 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:01,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-16 09:27:01,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,758 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) [2021-12-16 09:27:01,759 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 [2021-12-16 09:27:01,761 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 [2021-12-16 09:27:01,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:01,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:01,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:01,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-16 09:27:01,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,786 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) [2021-12-16 09:27:01,786 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 [2021-12-16 09:27:01,788 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 [2021-12-16 09:27:01,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:01,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:01,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:01,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,816 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) [2021-12-16 09:27:01,817 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 [2021-12-16 09:27:01,818 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 [2021-12-16 09:27:01,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:01,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:01,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:01,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,842 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 [2021-12-16 09:27:01,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,843 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) [2021-12-16 09:27:01,844 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 [2021-12-16 09:27:01,845 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 [2021-12-16 09:27:01,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:01,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:01,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:01,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,873 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 [2021-12-16 09:27:01,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,875 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) [2021-12-16 09:27:01,875 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 [2021-12-16 09:27:01,878 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 [2021-12-16 09:27:01,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:01,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:01,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:01,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,902 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 [2021-12-16 09:27:01,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,904 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) [2021-12-16 09:27:01,905 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 [2021-12-16 09:27:01,906 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 [2021-12-16 09:27:01,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,914 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:01,914 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:01,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:01,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,938 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) [2021-12-16 09:27:01,939 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 [2021-12-16 09:27:01,940 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 [2021-12-16 09:27:01,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,952 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:01,952 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:01,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:01,975 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 [2021-12-16 09:27:01,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:01,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:01,977 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) [2021-12-16 09:27:01,977 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 [2021-12-16 09:27:01,978 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 [2021-12-16 09:27:01,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:01,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:01,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:01,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:01,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:01,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:02,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:02,035 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 [2021-12-16 09:27:02,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:02,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:02,037 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) [2021-12-16 09:27:02,042 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 [2021-12-16 09:27:02,043 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 [2021-12-16 09:27:02,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:02,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:02,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:02,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:02,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:02,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:02,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:02,073 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 [2021-12-16 09:27:02,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:02,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:02,074 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) [2021-12-16 09:27:02,075 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 [2021-12-16 09:27:02,076 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 [2021-12-16 09:27:02,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:02,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:02,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:02,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:02,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:02,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:02,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:02,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-16 09:27:02,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:02,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:02,103 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) [2021-12-16 09:27:02,103 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 [2021-12-16 09:27:02,106 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 [2021-12-16 09:27:02,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:02,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:02,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:02,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:02,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:02,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:02,117 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:27:02,121 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-16 09:27:02,122 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-16 09:27:02,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:02,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:02,124 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) [2021-12-16 09:27:02,125 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 [2021-12-16 09:27:02,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:27:02,131 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:27:02,132 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:27:02,132 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 [] [2021-12-16 09:27:02,147 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 [2021-12-16 09:27:02,162 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-16 09:27:02,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:02,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:02,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:02,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-16 09:27:02,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:02,282 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 [2021-12-16 09:27:02,282 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) [2021-12-16 09:27:02,312 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. [2021-12-16 09:27:02,314 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 [2021-12-16 09:27:02,314 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) [2021-12-16 09:27:02,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-12-16 09:27:02,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 5 letters. [2021-12-16 09:27:02,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:02,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 12 letters. Loop has 5 letters. [2021-12-16 09:27:02,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:02,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 7 letters. Loop has 10 letters. [2021-12-16 09:27:02,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:02,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 133 transitions. [2021-12-16 09:27:02,316 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-12-16 09:27:02,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 102 states and 122 transitions. [2021-12-16 09:27:02,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-12-16 09:27:02,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-12-16 09:27:02,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 122 transitions. [2021-12-16 09:27:02,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:27:02,317 INFO L681 BuchiCegarLoop]: Abstraction has 102 states and 122 transitions. [2021-12-16 09:27:02,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 122 transitions. [2021-12-16 09:27:02,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 60. [2021-12-16 09:27:02,320 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) [2021-12-16 09:27:02,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 73 transitions. [2021-12-16 09:27:02,321 INFO L704 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-16 09:27:02,321 INFO L587 BuchiCegarLoop]: Abstraction has 60 states and 73 transitions. [2021-12-16 09:27:02,321 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-16 09:27:02,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 73 transitions. [2021-12-16 09:27:02,322 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-12-16 09:27:02,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:27:02,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:27:02,322 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2021-12-16 09:27:02,322 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:27:02,322 INFO L791 eck$LassoCheckResult]: Stem: 1232#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1233#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; 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; 1268#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; 1265#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); 1266#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1256#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; 1262#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; 1251#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; 1247#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); 1248#L551 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1234#L559 [2021-12-16 09:27:02,322 INFO L793 eck$LassoCheckResult]: Loop: 1234#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; 1235#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; 1239#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; 1281#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; 1234#L559 [2021-12-16 09:27:02,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:02,323 INFO L85 PathProgramCache]: Analyzing trace with hash -125928577, now seen corresponding path program 3 times [2021-12-16 09:27:02,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:02,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849769134] [2021-12-16 09:27:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:02,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:02,332 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:02,339 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:02,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:02,340 INFO L85 PathProgramCache]: Analyzing trace with hash 58400557, now seen corresponding path program 3 times [2021-12-16 09:27:02,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:02,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608549160] [2021-12-16 09:27:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:02,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:02,345 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:02,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:02,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:02,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1691624047, now seen corresponding path program 1 times [2021-12-16 09:27:02,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:02,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170657769] [2021-12-16 09:27:02,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:02,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:02,366 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:02,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:02,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-16 09:27:02,894 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:27:02,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:27:02,895 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:27:02,895 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:27:02,895 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:27:02,895 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:02,895 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:27:02,895 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:27:02,895 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration8_Lasso [2021-12-16 09:27:02,895 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:27:02,895 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:27:02,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:02,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:02,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:02,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:02,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:03,318 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:27:03,318 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:27:03,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,319 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) [2021-12-16 09:27:03,320 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 [2021-12-16 09:27:03,321 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 [2021-12-16 09:27:03,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:03,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:03,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:03,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:03,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:03,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:03,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:03,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:03,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-16 09:27:03,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,346 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) [2021-12-16 09:27:03,347 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 [2021-12-16 09:27:03,348 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 [2021-12-16 09:27:03,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:03,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:03,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:03,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:03,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:03,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:03,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:03,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:03,371 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 [2021-12-16 09:27:03,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,372 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) [2021-12-16 09:27:03,373 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 [2021-12-16 09:27:03,374 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 [2021-12-16 09:27:03,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:03,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:03,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:03,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:03,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:03,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:03,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:03,399 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 [2021-12-16 09:27:03,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,400 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) [2021-12-16 09:27:03,402 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 [2021-12-16 09:27:03,403 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 [2021-12-16 09:27:03,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:03,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:03,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:03,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:03,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:03,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:03,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:03,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-16 09:27:03,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,429 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) [2021-12-16 09:27:03,430 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 [2021-12-16 09:27:03,432 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 [2021-12-16 09:27:03,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:03,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:03,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:03,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:03,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:03,440 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:03,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:03,458 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 [2021-12-16 09:27:03,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,460 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) [2021-12-16 09:27:03,460 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 [2021-12-16 09:27:03,461 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 [2021-12-16 09:27:03,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:03,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:03,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:03,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:03,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:03,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:03,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:03,510 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 [2021-12-16 09:27:03,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,511 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) [2021-12-16 09:27:03,511 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 [2021-12-16 09:27:03,513 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 [2021-12-16 09:27:03,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:03,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:03,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:03,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:03,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:03,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:03,524 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:27:03,535 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-12-16 09:27:03,535 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-12-16 09:27:03,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:03,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:03,537 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) [2021-12-16 09:27:03,538 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 [2021-12-16 09:27:03,539 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:27:03,546 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:27:03,546 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:27:03,546 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 [] [2021-12-16 09:27:03,562 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 [2021-12-16 09:27:03,582 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-16 09:27:03,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:03,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:03,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:03,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 09:27:03,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:03,647 INFO L388 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 [2021-12-16 09:27:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:03,668 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 [2021-12-16 09:27:03,668 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) [2021-12-16 09:27:03,693 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. [2021-12-16 09:27:03,694 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 [2021-12-16 09:27:03,695 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) [2021-12-16 09:27:03,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-16 09:27:03,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-16 09:27:03,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:03,695 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-16 09:27:03,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:03,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:03,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:03,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 09:27:03,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:03,757 INFO L388 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 [2021-12-16 09:27:03,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:03,785 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 [2021-12-16 09:27:03,786 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) [2021-12-16 09:27:03,815 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. [2021-12-16 09:27:03,816 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 [2021-12-16 09:27:03,817 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) [2021-12-16 09:27:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-16 09:27:03,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-16 09:27:03,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:03,817 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-16 09:27:03,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:03,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:03,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:03,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 09:27:03,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:03,898 INFO L388 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 [2021-12-16 09:27:03,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:03,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:03,921 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 [2021-12-16 09:27:03,921 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) [2021-12-16 09:27:03,955 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. [2021-12-16 09:27:03,955 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 [2021-12-16 09:27:03,956 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) [2021-12-16 09:27:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-12-16 09:27:03,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2021-12-16 09:27:03,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:03,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 16 letters. Loop has 5 letters. [2021-12-16 09:27:03,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:03,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 10 letters. [2021-12-16 09:27:03,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:03,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 97 transitions. [2021-12-16 09:27:03,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:27:03,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 62 states and 74 transitions. [2021-12-16 09:27:03,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-16 09:27:03,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-16 09:27:03,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 74 transitions. [2021-12-16 09:27:03,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-16 09:27:03,958 INFO L681 BuchiCegarLoop]: Abstraction has 62 states and 74 transitions. [2021-12-16 09:27:03,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 74 transitions. [2021-12-16 09:27:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 55. [2021-12-16 09:27:03,961 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) [2021-12-16 09:27:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-12-16 09:27:03,961 INFO L704 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-16 09:27:03,961 INFO L587 BuchiCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-12-16 09:27:03,961 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-16 09:27:03,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 66 transitions. [2021-12-16 09:27:03,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-16 09:27:03,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-16 09:27:03,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-16 09:27:03,962 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 1, 1, 1] [2021-12-16 09:27:03,962 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-16 09:27:03,962 INFO L791 eck$LassoCheckResult]: Stem: 1809#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1810#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; 1827#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; 1832#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; 1831#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); 1830#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1815#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 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; 1852#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; 1853#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); 1848#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1843#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; 1835#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; 1842#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; 1841#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); 1839#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; 1818#L559-2 [2021-12-16 09:27:03,963 INFO L793 eck$LassoCheckResult]: Loop: 1818#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; 1819#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; 1840#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); 1838#L551 assume main_#t~mem7#1 > 0;havoc main_#t~mem7#1; 1837#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; 1818#L559-2 [2021-12-16 09:27:03,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:03,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1675310445, now seen corresponding path program 1 times [2021-12-16 09:27:03,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:03,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474802303] [2021-12-16 09:27:03,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:03,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:03,976 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:03,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:03,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:03,986 INFO L85 PathProgramCache]: Analyzing trace with hash 35409683, now seen corresponding path program 2 times [2021-12-16 09:27:03,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:03,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968258820] [2021-12-16 09:27:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:03,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:03,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:03,997 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:03,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:04,000 INFO L85 PathProgramCache]: Analyzing trace with hash 143216577, now seen corresponding path program 2 times [2021-12-16 09:27:04,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:27:04,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391422143] [2021-12-16 09:27:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:27:04,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:27:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:04,026 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 09:27:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 09:27:04,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 09:27:04,793 INFO L210 LassoAnalysis]: Preferences: [2021-12-16 09:27:04,793 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-16 09:27:04,793 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-16 09:27:04,793 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-16 09:27:04,793 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-16 09:27:04,793 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:04,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-16 09:27:04,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-16 09:27:04,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-alloca.i_Iteration9_Lasso [2021-12-16 09:27:04,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-16 09:27:04,793 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-16 09:27:04,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:04,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:05,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:05,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-16 09:27:05,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-16 09:27:05,246 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-16 09:27:05,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,247 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) [2021-12-16 09:27:05,248 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 [2021-12-16 09:27:05,249 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 [2021-12-16 09:27:05,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:05,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:05,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,273 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 [2021-12-16 09:27:05,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,274 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) [2021-12-16 09:27:05,275 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 [2021-12-16 09:27:05,276 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 [2021-12-16 09:27:05,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:05,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,300 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) [2021-12-16 09:27:05,300 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 [2021-12-16 09:27:05,302 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 [2021-12-16 09:27:05,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-12-16 09:27:05,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,326 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) [2021-12-16 09:27:05,327 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 [2021-12-16 09:27:05,328 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 [2021-12-16 09:27:05,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,350 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 [2021-12-16 09:27:05,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,352 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) [2021-12-16 09:27:05,352 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 [2021-12-16 09:27:05,354 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 [2021-12-16 09:27:05,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:05,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:05,364 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,379 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 [2021-12-16 09:27:05,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,381 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) [2021-12-16 09:27:05,381 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 [2021-12-16 09:27:05,383 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 [2021-12-16 09:27:05,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,390 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,405 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 [2021-12-16 09:27:05,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,406 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) [2021-12-16 09:27:05,406 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 [2021-12-16 09:27:05,408 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 [2021-12-16 09:27:05,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:05,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:05,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-16 09:27:05,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,433 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) [2021-12-16 09:27:05,434 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 [2021-12-16 09:27:05,435 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 [2021-12-16 09:27:05,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,441 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,442 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,457 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 [2021-12-16 09:27:05,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,459 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) [2021-12-16 09:27:05,467 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 [2021-12-16 09:27:05,471 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 [2021-12-16 09:27:05,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:05,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:05,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:05,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,492 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) [2021-12-16 09:27:05,493 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 [2021-12-16 09:27:05,494 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 [2021-12-16 09:27:05,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-16 09:27:05,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,518 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) [2021-12-16 09:27:05,519 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 [2021-12-16 09:27:05,520 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 [2021-12-16 09:27:05,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-12-16 09:27:05,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,544 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) [2021-12-16 09:27:05,545 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 [2021-12-16 09:27:05,546 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 [2021-12-16 09:27:05,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,569 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 [2021-12-16 09:27:05,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,573 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) [2021-12-16 09:27:05,579 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 [2021-12-16 09:27:05,586 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 [2021-12-16 09:27:05,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,603 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 [2021-12-16 09:27:05,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,605 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) [2021-12-16 09:27:05,605 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 [2021-12-16 09:27:05,606 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 [2021-12-16 09:27:05,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-16 09:27:05,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-16 09:27:05,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-16 09:27:05,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,629 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 [2021-12-16 09:27:05,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,630 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) [2021-12-16 09:27:05,631 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 [2021-12-16 09:27:05,632 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 [2021-12-16 09:27:05,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:05,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:05,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-16 09:27:05,657 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 [2021-12-16 09:27:05,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,659 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) [2021-12-16 09:27:05,659 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 [2021-12-16 09:27:05,662 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 [2021-12-16 09:27:05,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-16 09:27:05,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-16 09:27:05,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-16 09:27:05,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-16 09:27:05,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-16 09:27:05,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-16 09:27:05,674 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-16 09:27:05,677 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-16 09:27:05,677 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-16 09:27:05,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-16 09:27:05,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:27:05,678 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) [2021-12-16 09:27:05,678 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 [2021-12-16 09:27:05,732 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-16 09:27:05,739 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-16 09:27:05,739 INFO L513 LassoAnalysis]: Proved termination. [2021-12-16 09:27:05,739 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 [] [2021-12-16 09:27:05,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:05,770 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-12-16 09:27:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:05,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:05,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:05,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:27:05,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:05,905 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 [2021-12-16 09:27:05,905 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) [2021-12-16 09:27:05,929 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. [2021-12-16 09:27:05,930 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 [2021-12-16 09:27:05,930 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) [2021-12-16 09:27:05,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-16 09:27:05,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-16 09:27:05,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:05,930 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-16 09:27:05,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:05,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:05,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:05,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:27:05,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:06,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:06,062 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 [2021-12-16 09:27:06,062 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) [2021-12-16 09:27:06,085 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. [2021-12-16 09:27:06,085 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 [2021-12-16 09:27:06,087 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) [2021-12-16 09:27:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-16 09:27:06,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-16 09:27:06,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:06,088 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-16 09:27:06,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:27:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:06,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 09:27:06,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:27:06,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 09:27:06,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:27:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:27:06,242 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 [2021-12-16 09:27:06,242 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) [2021-12-16 09:27:06,267 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. [2021-12-16 09:27:06,268 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 [2021-12-16 09:27:06,269 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) [2021-12-16 09:27:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-16 09:27:06,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 5 letters. [2021-12-16 09:27:06,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:06,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 22 letters. Loop has 5 letters. [2021-12-16 09:27:06,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:06,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 10 letters. [2021-12-16 09:27:06,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-16 09:27:06,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 84 transitions. [2021-12-16 09:27:06,273 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:27:06,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 0 states and 0 transitions. [2021-12-16 09:27:06,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-16 09:27:06,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-16 09:27:06,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-16 09:27:06,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-16 09:27:06,274 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:27:06,274 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:27:06,274 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 09:27:06,274 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-16 09:27:06,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-16 09:27:06,274 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-16 09:27:06,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-16 09:27:06,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.12 09:27:06 BoogieIcfgContainer [2021-12-16 09:27:06,282 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-16 09:27:06,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 09:27:06,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 09:27:06,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 09:27:06,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:26:53" (3/4) ... [2021-12-16 09:27:06,286 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 09:27:06,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 09:27:06,287 INFO L158 Benchmark]: Toolchain (without parser) took 13219.81ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 71.1MB in the beginning and 42.4MB in the end (delta: 28.8MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2021-12-16 09:27:06,287 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:27:06,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.32ms. Allocated memory is still 109.1MB. Free memory was 70.9MB in the beginning and 79.4MB in the end (delta: -8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 09:27:06,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 109.1MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:27:06,288 INFO L158 Benchmark]: Boogie Preprocessor took 23.98ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 76.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-16 09:27:06,289 INFO L158 Benchmark]: RCFGBuilder took 351.00ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 65.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 09:27:06,289 INFO L158 Benchmark]: BuchiAutomizer took 12443.31ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 65.9MB in the beginning and 43.3MB in the end (delta: 22.5MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2021-12-16 09:27:06,289 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 161.5MB. Free memory was 43.3MB in the beginning and 42.4MB in the end (delta: 992.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 09:27:06,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.32ms. Allocated memory is still 109.1MB. Free memory was 70.9MB in the beginning and 79.4MB in the end (delta: -8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 109.1MB. Free memory was 79.4MB in the beginning and 77.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.98ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 76.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.00ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 65.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 12443.31ms. Allocated memory was 109.1MB in the beginning and 161.5MB in the end (delta: 52.4MB). Free memory was 65.9MB in the beginning and 43.3MB in the end (delta: 22.5MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 161.5MB. Free memory was 43.3MB in the beginning and 42.4MB in the end (delta: 992.5kB). There was no memory consumed. 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 6 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 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.4s and 10 iterations. TraceHistogramMax:3. Analysis of lassos took 10.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 65 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, 160 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 27 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 116 mSDtfsCounter, 345 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital230 mio100 ax108 hnf100 lsp87 ukn63 mio100 lsp38 div100 bol100 ite100 ukn100 eq184 hnf88 smp97 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms 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! [2021-12-16 09:27:06,327 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 [2021-12-16 09:27:06,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:06,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-16 09:27:06,936 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