./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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/b.14-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 14310793a2daa3bf62d53b5cef67b6406903d242 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Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: No Interpolants --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:18:01,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:18:01,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:18:01,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:18:01,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:18:01,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:18:01,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:18:01,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:18:01,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:18:01,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:18:01,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:18:01,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:18:01,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:18:01,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:18:01,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:18:01,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:18:01,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:18:01,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:18:01,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:18:01,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:18:01,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:18:01,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:18:01,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:18:01,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:18:01,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:18:01,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:18:01,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:18:01,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:18:01,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:18:01,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:18:01,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:18:01,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:18:01,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:18:01,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:18:01,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:18:01,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:18:01,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:18:01,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:18:01,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:18:01,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:18:01,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:18:01,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:18:01,394 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:18:01,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:18:01,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:18:01,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:18:01,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:18:01,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:18:01,397 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:18:01,398 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:18:01,398 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:18:01,398 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:18:01,398 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:18:01,399 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:18:01,399 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:18:01,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:18:01,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:18:01,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:18:01,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:18:01,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:18:01,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:18:01,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:18:01,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:18:01,400 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:18:01,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:18:01,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:18:01,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:18:01,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:18:01,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:18:01,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:18:01,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:18:01,402 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:18:01,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14310793a2daa3bf62d53b5cef67b6406903d242 [2021-08-27 14:18:01,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:18:02,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:18:02,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:18:02,017 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:18:02,018 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:18:02,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2021-08-27 14:18:02,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ada0e6e7/e3ad3d99870544a69eb99b803c7519e3/FLAG6de406c98 [2021-08-27 14:18:02,658 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:18:02,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.14-alloca.i [2021-08-27 14:18:02,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ada0e6e7/e3ad3d99870544a69eb99b803c7519e3/FLAG6de406c98 [2021-08-27 14:18:02,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ada0e6e7/e3ad3d99870544a69eb99b803c7519e3 [2021-08-27 14:18:02,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:18:02,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:18:02,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:18:02,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:18:02,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:18:02,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:18:02" (1/1) ... [2021-08-27 14:18:02,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f3753b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:02, skipping insertion in model container [2021-08-27 14:18:03,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:18:02" (1/1) ... [2021-08-27 14:18:03,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:18:03,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:18:03,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:18:03,299 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:18:03,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:18:03,359 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:18:03,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03 WrapperNode [2021-08-27 14:18:03,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:18:03,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:18:03,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:18:03,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:18:03,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:18:03,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:18:03,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:18:03,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:18:03,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:18:03,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:18:03,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:18:03,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:18:03,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (1/1) ... [2021-08-27 14:18:03,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:03,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:03,449 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) [2021-08-27 14:18:03,480 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 [2021-08-27 14:18:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:18:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:18:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 14:18:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:18:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:18:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:18:03,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:18:03,756 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-27 14:18:03,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:18:03 BoogieIcfgContainer [2021-08-27 14:18:03,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:18:03,758 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:18:03,758 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:18:03,760 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:18:03,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:18:03,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:18:02" (1/3) ... [2021-08-27 14:18:03,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43f84de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:18:03, skipping insertion in model container [2021-08-27 14:18:03,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:18:03,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:18:03" (2/3) ... [2021-08-27 14:18:03,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43f84de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:18:03, skipping insertion in model container [2021-08-27 14:18:03,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:18:03,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:18:03" (3/3) ... [2021-08-27 14:18:03,762 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.14-alloca.i [2021-08-27 14:18:03,799 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:18:03,799 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:18:03,799 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:18:03,800 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:18:03,800 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:18:03,800 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:18:03,800 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:18:03,800 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:18:03,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2021-08-27 14:18:03,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:18:03,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:03,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:03,825 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:03,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 14:18:03,825 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:18:03,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2021-08-27 14:18:03,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:18:03,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:03,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:03,827 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:03,827 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 14:18:03,831 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 3#L556-4true [2021-08-27 14:18:03,831 INFO L793 eck$LassoCheckResult]: Loop: 3#L556-4true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 13#L555-1true assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 7#L555-3true assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 8#L556-3true assume !true; 3#L556-4true [2021-08-27 14:18:03,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:03,835 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 14:18:03,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:03,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448710815] [2021-08-27 14:18:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:03,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:03,923 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:03,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:03,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:03,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1142256, now seen corresponding path program 1 times [2021-08-27 14:18:03,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:03,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686439525] [2021-08-27 14:18:03,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:03,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:04,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:04,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686439525] [2021-08-27 14:18:04,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686439525] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:04,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:04,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 14:18:04,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632142478] [2021-08-27 14:18:04,009 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:18:04,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 14:18:04,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 14:18:04,019 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-08-27 14:18:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:04,022 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2021-08-27 14:18:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 14:18:04,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-08-27 14:18:04,024 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:18:04,027 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 7 states and 9 transitions. [2021-08-27 14:18:04,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-08-27 14:18:04,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 14:18:04,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2021-08-27 14:18:04,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:18:04,032 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-08-27 14:18:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2021-08-27 14:18:04,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-27 14:18:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-08-27 14:18:04,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-08-27 14:18:04,046 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-08-27 14:18:04,046 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-08-27 14:18:04,046 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:18:04,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-08-27 14:18:04,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-08-27 14:18:04,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:04,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:04,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:04,047 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 14:18:04,047 INFO L791 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 35#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 32#L556-4 [2021-08-27 14:18:04,048 INFO L793 eck$LassoCheckResult]: Loop: 32#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 33#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 36#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 37#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 38#L556-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 32#L556-4 [2021-08-27 14:18:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:04,048 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-08-27 14:18:04,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:04,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382008835] [2021-08-27 14:18:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:04,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,062 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,076 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:04,077 INFO L82 PathProgramCache]: Analyzing trace with hash 35409745, now seen corresponding path program 1 times [2021-08-27 14:18:04,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:04,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578842535] [2021-08-27 14:18:04,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:04,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:18:04,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:18:04,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578842535] [2021-08-27 14:18:04,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578842535] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:18:04,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:18:04,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 14:18:04,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519554777] [2021-08-27 14:18:04,138 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 14:18:04,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:18:04,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 14:18:04,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-27 14:18:04,139 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 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) [2021-08-27 14:18:04,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:18:04,234 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2021-08-27 14:18:04,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 14:18:04,234 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2021-08-27 14:18:04,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 14:18:04,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 11 transitions. [2021-08-27 14:18:04,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-08-27 14:18:04,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-08-27 14:18:04,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-08-27 14:18:04,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:18:04,235 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-08-27 14:18:04,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-08-27 14:18:04,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-27 14:18:04,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2021-08-27 14:18:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-08-27 14:18:04,236 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-08-27 14:18:04,236 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-08-27 14:18:04,236 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:18:04,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2021-08-27 14:18:04,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 14:18:04,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:18:04,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:18:04,237 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 14:18:04,237 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2021-08-27 14:18:04,237 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 66#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem12, test_fun_#t~mem9, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 63#L556-4 [2021-08-27 14:18:04,237 INFO L793 eck$LassoCheckResult]: Loop: 63#L556-4 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 == test_fun_#t~mem6; 64#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 > 0; 67#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;havoc test_fun_#t~mem7;havoc test_fun_#t~short8; 68#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 69#L556-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~c~0.base, test_fun_~c~0.offset, 4);call write~int(1 + test_fun_#t~mem12, test_fun_~c~0.base, test_fun_~c~0.offset, 4);havoc test_fun_#t~mem12; 70#L556-3 call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 71#L556-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 63#L556-4 [2021-08-27 14:18:04,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:04,238 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-08-27 14:18:04,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:04,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224699376] [2021-08-27 14:18:04,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:04,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,249 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:04,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:04,273 INFO L82 PathProgramCache]: Analyzing trace with hash -330970762, now seen corresponding path program 1 times [2021-08-27 14:18:04,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:04,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659284279] [2021-08-27 14:18:04,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:04,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,283 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:04,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:04,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1215326068, now seen corresponding path program 1 times [2021-08-27 14:18:04,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:18:04,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018936588] [2021-08-27 14:18:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:18:04,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:18:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,340 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:18:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:18:04,368 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:18:05,196 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:18:05,196 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:18:05,196 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:18:05,196 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:18:05,196 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:18:05,196 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:05,197 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:18:05,197 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:18:05,197 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14-alloca.i_Iteration3_Lasso [2021-08-27 14:18:05,197 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:18:05,197 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:18:05,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:05,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:18:06,045 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:18:06,048 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:18:06,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,061 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) [2021-08-27 14:18:06,065 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 [2021-08-27 14:18:06,065 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 [2021-08-27 14:18:06,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:06,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:06,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:06,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 14:18:06,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,117 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) [2021-08-27 14:18:06,128 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 [2021-08-27 14:18:06,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:06,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:06,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:06,138 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 [2021-08-27 14:18:06,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,165 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 [2021-08-27 14:18:06,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,169 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) [2021-08-27 14:18:06,170 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 [2021-08-27 14:18:06,171 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 [2021-08-27 14:18:06,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:06,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:06,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:06,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,202 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 [2021-08-27 14:18:06,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,203 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) [2021-08-27 14:18:06,204 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 [2021-08-27 14:18:06,206 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 [2021-08-27 14:18:06,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:06,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,214 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:06,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:06,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,254 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 [2021-08-27 14:18:06,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,256 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) [2021-08-27 14:18:06,256 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 [2021-08-27 14:18:06,258 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 [2021-08-27 14:18:06,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:06,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:06,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:06,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,286 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 [2021-08-27 14:18:06,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,288 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) [2021-08-27 14:18:06,288 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 [2021-08-27 14:18:06,289 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 [2021-08-27 14:18:06,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,298 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:06,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:06,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,329 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 [2021-08-27 14:18:06,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,330 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) [2021-08-27 14:18:06,331 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 [2021-08-27 14:18:06,332 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 [2021-08-27 14:18:06,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:06,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:06,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:06,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-08-27 14:18:06,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,374 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) [2021-08-27 14:18:06,374 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 [2021-08-27 14:18:06,375 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 [2021-08-27 14:18:06,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:18:06,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:18:06,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:18:06,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:18:06,399 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 [2021-08-27 14:18:06,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,401 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) [2021-08-27 14:18:06,401 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 [2021-08-27 14:18:06,402 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 [2021-08-27 14:18:06,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:18:06,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:18:06,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:18:06,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:18:06,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:18:06,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:18:06,428 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:18:06,447 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-08-27 14:18:06,447 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-08-27 14:18:06,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:18:06,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:18:06,450 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) [2021-08-27 14:18:06,450 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 [2021-08-27 14:18:06,451 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:18:06,493 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:18:06,493 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:18:06,494 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 Supporting invariants [] [2021-08-27 14:18:06,512 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 [2021-08-27 14:18:06,571 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2021-08-27 14:18:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:18:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:06,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 14:18:06,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:18:06,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 14:18:06,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:18:06,696 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 [2021-08-27 14:18:06,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-27 14:18:06,936 INFO L354 Elim1Store]: treesize reduction 170, result has 43.9 percent of original size [2021-08-27 14:18:06,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 471 treesize of output 239 [2021-08-27 14:18:07,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2021-08-27 14:18:07,038 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-08-27 14:18:07,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2021-08-27 14:18:07,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-08-27 14:18:07,162 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-08-27 14:18:07,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 38 [2021-08-27 14:18:07,255 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-08-27 14:18:07,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 58 [2021-08-27 14:18:07,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2021-08-27 14:18:07,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2021-08-27 14:18:07,793 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-08-27 14:18:07,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 60 [2021-08-27 14:18:07,826 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: No Interpolants at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.getInterpolants(InterpolatingTraceCheck.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.RefineBuchi.refineBuchi(RefineBuchi.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:731) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:549) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-27 14:18:07,829 INFO L168 Benchmark]: Toolchain (without parser) took 4834.65 ms. Allocated memory was 62.9 MB in the beginning and 132.1 MB in the end (delta: 69.2 MB). Free memory was 41.4 MB in the beginning and 97.5 MB in the end (delta: -56.2 MB). Peak memory consumption was 72.0 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:07,829 INFO L168 Benchmark]: CDTParser took 2.30 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:18:07,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.67 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 40.7 MB in the end (delta: 484.8 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:07,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.20 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 38.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:07,830 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 62.9 MB. Free memory was 38.8 MB in the beginning and 37.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:07,831 INFO L168 Benchmark]: RCFGBuilder took 331.87 ms. Allocated memory is still 62.9 MB. Free memory was 37.6 MB in the beginning and 38.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:07,831 INFO L168 Benchmark]: BuchiAutomizer took 4070.13 ms. Allocated memory was 62.9 MB in the beginning and 132.1 MB in the end (delta: 69.2 MB). Free memory was 38.9 MB in the beginning and 97.5 MB in the end (delta: -58.7 MB). Peak memory consumption was 71.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:18:07,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.30 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.67 ms. Allocated memory is still 62.9 MB. Free memory was 41.2 MB in the beginning and 40.7 MB in the end (delta: 484.8 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.20 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 38.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.25 ms. Allocated memory is still 62.9 MB. Free memory was 38.8 MB in the beginning and 37.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 331.87 ms. Allocated memory is still 62.9 MB. Free memory was 37.6 MB in the beginning and 38.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4070.13 ms. Allocated memory was 62.9 MB in the beginning and 132.1 MB in the end (delta: 69.2 MB). Free memory was 38.9 MB in the beginning and 97.5 MB in the end (delta: -58.7 MB). Peak memory consumption was 71.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: No Interpolants de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: No Interpolants: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.getInterpolants(InterpolatingTraceCheck.java:149) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-27 14:18:07,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...