./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.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 a3234041458b1cb43f5c8cf47efd2786acbf35974c39e2e7dc8710d7ed359b74 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:12:46,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:12:46,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:12:46,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:12:46,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:12:46,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:12:46,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:12:46,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:12:46,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:12:46,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:12:46,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:12:46,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:12:46,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:12:46,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:12:46,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:12:46,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:12:46,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:12:46,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:12:46,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:12:46,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:12:46,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:12:46,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:12:46,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:12:46,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:12:46,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:12:46,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:12:46,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:12:46,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:12:46,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:12:46,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:12:46,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:12:46,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:12:46,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:12:46,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:12:46,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:12:46,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:12:46,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:12:46,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:12:46,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:12:46,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:12:46,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:12:46,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:12:47,009 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:12:47,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:12:47,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:12:47,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:12:47,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:12:47,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:12:47,012 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:12:47,012 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:12:47,013 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:12:47,013 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:12:47,013 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:12:47,014 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:12:47,014 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:12:47,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:12:47,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:12:47,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:12:47,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:12:47,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:12:47,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:12:47,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:12:47,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:12:47,015 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:12:47,015 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:12:47,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:12:47,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:12:47,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:12:47,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:12:47,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:12:47,017 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:12:47,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3234041458b1cb43f5c8cf47efd2786acbf35974c39e2e7dc8710d7ed359b74 [2021-12-28 09:12:47,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:12:47,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:12:47,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:12:47,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:12:47,302 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:12:47,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.i [2021-12-28 09:12:47,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6be42cc/7d0de119745b4de49db2debb317f8ef8/FLAGb364c878d [2021-12-28 09:12:47,668 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:12:47,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex4.i [2021-12-28 09:12:47,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6be42cc/7d0de119745b4de49db2debb317f8ef8/FLAGb364c878d [2021-12-28 09:12:48,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e6be42cc/7d0de119745b4de49db2debb317f8ef8 [2021-12-28 09:12:48,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:12:48,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:12:48,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:12:48,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:12:48,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:12:48,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118c8dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48, skipping insertion in model container [2021-12-28 09:12:48,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:12:48,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:12:48,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:12:48,234 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:12:48,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:12:48,256 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:12:48,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48 WrapperNode [2021-12-28 09:12:48,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:12:48,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:12:48,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:12:48,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:12:48,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,311 INFO L137 Inliner]: procedures = 12, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2021-12-28 09:12:48,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:12:48,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:12:48,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:12:48,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:12:48,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:12:48,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:12:48,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:12:48,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:12:48,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (1/1) ... [2021-12-28 09:12:48,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:48,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:48,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:48,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-28 09:12:48,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 09:12:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 09:12:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-12-28 09:12:48,407 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-12-28 09:12:48,407 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-12-28 09:12:48,407 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-12-28 09:12:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:12:48,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:12:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 09:12:48,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 09:12:48,453 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:12:48,454 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:12:48,591 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:12:48,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:12:48,601 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 09:12:48,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:12:48 BoogieIcfgContainer [2021-12-28 09:12:48,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:12:48,616 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:12:48,616 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:12:48,618 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:12:48,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:12:48,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:12:48" (1/3) ... [2021-12-28 09:12:48,619 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c6699fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:12:48, skipping insertion in model container [2021-12-28 09:12:48,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:12:48,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:12:48" (2/3) ... [2021-12-28 09:12:48,620 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c6699fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:12:48, skipping insertion in model container [2021-12-28 09:12:48,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:12:48,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:12:48" (3/3) ... [2021-12-28 09:12:48,621 INFO L388 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex4.i [2021-12-28 09:12:48,687 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:12:48,687 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:12:48,687 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:12:48,687 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:12:48,687 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:12:48,687 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:12:48,687 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:12:48,687 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:12:48,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-28 09:12:48,709 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:12:48,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:12:48,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:12:48,718 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-28 09:12:48,718 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:12:48,718 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:12:48,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-28 09:12:48,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-28 09:12:48,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:12:48,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:12:48,721 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-28 09:12:48,721 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-28 09:12:48,726 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~nondet12#1, main_~p1~0#1.base, main_~p1~0#1.offset, main_~p2~0#1.base, main_~p2~0#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnHeap(4);main_~p1~0#1.base, main_~p1~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;havoc main_#t~malloc9#1.base, main_#t~malloc9#1.offset;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnHeap(4);main_~p2~0#1.base, main_~p2~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;havoc main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(main_#t~nondet11#1, main_~p1~0#1.base, main_~p1~0#1.offset, 4);havoc main_#t~nondet11#1;call write~int(main_#t~nondet12#1, main_~p2~0#1.base, main_~p2~0#1.offset, 4);havoc main_#t~nondet12#1; 11#L50true call f(main_~p1~0#1.base, main_~p1~0#1.offset, main_~p2~0#1.base, main_~p2~0#1.offset);< 12#fENTRYtrue [2021-12-28 09:12:48,726 INFO L793 eck$LassoCheckResult]: Loop: 12#fENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;~q.base, ~q.offset := #in~q.base, #in~q.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4);call #t~mem2 := read~int(~q.base, ~q.offset, 4); 14#L13true assume !(#t~mem1 + #t~mem2 < 0);havoc #t~mem1;havoc #t~mem2;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~np~0.base, ~np~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);call write~int(#t~mem4 - 1, ~np~0.base, ~np~0.offset, 4);havoc #t~mem4;call ULTIMATE.dealloc(~p.base, ~p.offset); 15#L23true call g(~q.base, ~q.offset, ~np~0.base, ~np~0.offset);< 13#gENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;~q.base, ~q.offset := #in~q.base, #in~q.offset;call #t~mem5 := read~int(~p.base, ~p.offset, 4);call #t~mem6 := read~int(~q.base, ~q.offset, 4); 17#L31true assume !(#t~mem5 + #t~mem6 < 0);havoc #t~mem5;havoc #t~mem6;call #t~mem7 := read~int(~p.base, ~p.offset, 4);#t~post8 := #t~mem7;call write~int(#t~post8 - 1, ~p.base, ~p.offset, 4);havoc #t~mem7;havoc #t~post8; 8#L36true call f(~p.base, ~p.offset, ~q.base, ~q.offset);< 12#fENTRYtrue [2021-12-28 09:12:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:12:48,733 INFO L85 PathProgramCache]: Analyzing trace with hash 43766, now seen corresponding path program 1 times [2021-12-28 09:12:48,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:12:48,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680431491] [2021-12-28 09:12:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:12:48,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:12:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:12:48,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:12:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:12:48,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:12:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:12:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash 891830467, now seen corresponding path program 1 times [2021-12-28 09:12:48,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:12:48,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407815391] [2021-12-28 09:12:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:12:48,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:12:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:12:48,945 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:12:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:12:48,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:12:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:12:48,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1193795592, now seen corresponding path program 1 times [2021-12-28 09:12:48,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:12:48,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402667227] [2021-12-28 09:12:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:12:48,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:12:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:12:49,029 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:12:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:12:49,051 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:12:50,574 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:12:50,575 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:12:50,575 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:12:50,575 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:12:50,575 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:12:50,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:50,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:12:50,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:12:50,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex4.i_Iteration1_Lasso [2021-12-28 09:12:50,576 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:12:50,576 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:12:50,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:50,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:12:51,249 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:12:51,253 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:12:51,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:12:51,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:12:51,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:12:51,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:12:51,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:12:51,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:12:51,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-28 09:12:51,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:12:51,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:12:51,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:12:51,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-28 09:12:51,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-28 09:12:51,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:12:51,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:12:51,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:12:51,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:12:51,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:12:51,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:12:51,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:12:51,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:12:51,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:12:51,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-28 09:12:51,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-28 09:12:51,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:12:51,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:12:51,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:12:51,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:12:51,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:12:51,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:12:51,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:12:51,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:12:51,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:12:51,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-28 09:12:51,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,408 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-28 09:12:51,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:12:51,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:12:51,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:12:51,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:12:51,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:12:51,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:12:51,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:12:51,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:12:51,425 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:12:51,462 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 [2021-12-28 09:12:51,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,476 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-28 09:12:51,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:12:51,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:12:51,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:12:51,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:12:51,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:12:51,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:12:51,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:12:51,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:12:51,521 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 [2021-12-28 09:12:51,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,522 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-28 09:12:51,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:12:51,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:12:51,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:12:51,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:12:51,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:12:51,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:12:51,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:12:51,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:12:51,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-28 09:12:51,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,573 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-28 09:12:51,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-28 09:12:51,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:12:51,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:12:51,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:12:51,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:12:51,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:12:51,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:12:51,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:12:51,674 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-28 09:12:51,674 INFO L444 ModelExtractionUtils]: 0 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-12-28 09:12:51,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:12:51,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:12:51,688 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-28 09:12:51,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-28 09:12:51,690 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:12:51,708 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-28 09:12:51,708 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:12:51,708 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select old(#memory_int) f_#in~q.base) f_#in~q.offset)_1, v_rep(select (select #memory_int f_#in~p.base) f_#in~p.offset)_1) = 1*v_rep(select (select old(#memory_int) f_#in~q.base) f_#in~q.offset)_1 + 1*v_rep(select (select #memory_int f_#in~p.base) f_#in~p.offset)_1 Supporting invariants [1*v_rep(select (select old(#memory_int) f_#in~q.base) f_#in~q.offset)_1 - 1*v_rep(select (select #memory_int f_#in~q.base) f_#in~q.offset)_1 >= 0] [2021-12-28 09:12:51,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-28 09:12:51,769 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2021-12-28 09:12:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:12:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:12:51,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-28 09:12:51,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:12:51,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-28 09:12:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:12:51,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 58 conjunts are in the unsatisfiable core [2021-12-28 09:12:51,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:12:51,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-12-28 09:12:51,991 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-28 09:12:51,992 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-28 09:12:52,009 INFO L353 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2021-12-28 09:12:52,009 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 45 [2021-12-28 09:12:52,125 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 26 [2021-12-28 09:12:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:12:52,161 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-12-28 09:12:52,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:12:52,389 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 52 transitions. Complement of second has 22 states. [2021-12-28 09:12:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-12-28 09:12:52,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 09:12:52,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2021-12-28 09:12:52,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-28 09:12:52,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:12:52,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2021-12-28 09:12:52,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:12:52,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 3 letters. Loop has 12 letters. [2021-12-28 09:12:52,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:12:52,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 52 transitions. [2021-12-28 09:12:52,407 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:12:52,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 0 states and 0 transitions. [2021-12-28 09:12:52,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:12:52,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:12:52,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:12:52,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:12:52,410 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:12:52,410 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:12:52,410 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:12:52,410 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:12:52,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:12:52,410 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:12:52,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:12:52,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:12:52 BoogieIcfgContainer [2021-12-28 09:12:52,415 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:12:52,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:12:52,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:12:52,416 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:12:52,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:12:48" (3/4) ... [2021-12-28 09:12:52,419 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:12:52,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:12:52,420 INFO L158 Benchmark]: Toolchain (without parser) took 4309.99ms. Allocated memory was 52.4MB in the beginning and 123.7MB in the end (delta: 71.3MB). Free memory was 29.7MB in the beginning and 54.7MB in the end (delta: -25.0MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2021-12-28 09:12:52,423 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 34.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:12:52,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.58ms. Allocated memory was 52.4MB in the beginning and 77.6MB in the end (delta: 25.2MB). Free memory was 29.5MB in the beginning and 57.1MB in the end (delta: -27.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-28 09:12:52,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.75ms. Allocated memory is still 77.6MB. Free memory was 57.1MB in the beginning and 60.8MB in the end (delta: -3.7MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-12-28 09:12:52,425 INFO L158 Benchmark]: Boogie Preprocessor took 31.59ms. Allocated memory is still 77.6MB. Free memory was 60.8MB in the beginning and 59.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:12:52,425 INFO L158 Benchmark]: RCFGBuilder took 270.98ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 48.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 09:12:52,427 INFO L158 Benchmark]: BuchiAutomizer took 3799.65ms. Allocated memory was 77.6MB in the beginning and 123.7MB in the end (delta: 46.1MB). Free memory was 48.5MB in the beginning and 54.7MB in the end (delta: -6.2MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2021-12-28 09:12:52,427 INFO L158 Benchmark]: Witness Printer took 2.78ms. Allocated memory is still 123.7MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:12:52,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 34.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.58ms. Allocated memory was 52.4MB in the beginning and 77.6MB in the end (delta: 25.2MB). Free memory was 29.5MB in the beginning and 57.1MB in the end (delta: -27.6MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.75ms. Allocated memory is still 77.6MB. Free memory was 57.1MB in the beginning and 60.8MB in the end (delta: -3.7MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.59ms. Allocated memory is still 77.6MB. Free memory was 60.8MB in the beginning and 59.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.98ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 48.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3799.65ms. Allocated memory was 77.6MB in the beginning and 123.7MB in the end (delta: 46.1MB). Free memory was 48.5MB in the beginning and 54.7MB in the end (delta: -6.2MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * Witness Printer took 2.78ms. Allocated memory is still 123.7MB. Free memory is still 54.7MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[p][p] + \old(unknown-#memory_int-unknown)[q][q] and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 11 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital291 mio100 ax100 hnf100 lsp97 ukn55 mio100 lsp35 div100 bol100 ite100 ukn100 eq177 hnf89 smp100 dnf113 smp88 tf100 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 40ms VariablesStem: 2 VariablesLoop: 3 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! [2021-12-28 09:12:52,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE