./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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_ex9.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 682a48acff360d61f631a6f73c43d35eb5554cb5c1e29a6f88508c15be8e86ce --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:06:45,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:06:45,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:06:45,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:06:45,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:06:45,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:06:45,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:06:45,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:06:45,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:06:45,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:06:45,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:06:45,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:06:45,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:06:45,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:06:45,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:06:45,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:06:45,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:06:45,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:06:45,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:06:45,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:06:45,932 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:06:45,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:06:45,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:06:45,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:06:45,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:06:45,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:06:45,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:06:45,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:06:45,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:06:45,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:06:45,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:06:45,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:06:45,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:06:45,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:06:45,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:06:45,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:06:45,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:06:45,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:06:45,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:06:45,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:06:45,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:06:45,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:06:45,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 15:06:45,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:06:46,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:06:46,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:06:46,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:06:46,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:06:46,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:06:46,003 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:06:46,003 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:06:46,004 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:06:46,004 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:06:46,005 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:06:46,005 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:06:46,005 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:06:46,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:06:46,005 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:06:46,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:06:46,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:06:46,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:06:46,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:06:46,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:06:46,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:06:46,013 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:06:46,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:06:46,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:06:46,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:06:46,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:06:46,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:06:46,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:06:46,015 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:06:46,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 682a48acff360d61f631a6f73c43d35eb5554cb5c1e29a6f88508c15be8e86ce [2022-07-14 15:06:46,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:06:46,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:06:46,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:06:46,287 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:06:46,288 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:06:46,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2022-07-14 15:06:46,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddd7eace/f1baa7760b154e3f8d9c1426c08be389/FLAG1061b3895 [2022-07-14 15:06:46,769 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:06:46,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex9.i [2022-07-14 15:06:46,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddd7eace/f1baa7760b154e3f8d9c1426c08be389/FLAG1061b3895 [2022-07-14 15:06:47,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddd7eace/f1baa7760b154e3f8d9c1426c08be389 [2022-07-14 15:06:47,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:06:47,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:06:47,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:06:47,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:06:47,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:06:47,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a3d45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47, skipping insertion in model container [2022-07-14 15:06:47,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:06:47,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:06:47,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:06:47,361 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:06:47,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:06:47,382 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:06:47,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47 WrapperNode [2022-07-14 15:06:47,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:06:47,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:06:47,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:06:47,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:06:47,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,407 INFO L137 Inliner]: procedures = 11, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-07-14 15:06:47,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:06:47,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:06:47,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:06:47,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:06:47,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:06:47,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:06:47,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:06:47,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:06:47,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (1/1) ... [2022-07-14 15:06:47,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:47,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:47,457 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) [2022-07-14 15:06:47,465 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 [2022-07-14 15:06:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 15:06:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2022-07-14 15:06:47,498 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2022-07-14 15:06:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 15:06:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:06:47,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:06:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 15:06:47,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 15:06:47,551 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:06:47,553 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:06:47,745 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:06:47,750 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:06:47,751 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 15:06:47,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:06:47 BoogieIcfgContainer [2022-07-14 15:06:47,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:06:47,753 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:06:47,753 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:06:47,756 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:06:47,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:06:47,757 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:06:47" (1/3) ... [2022-07-14 15:06:47,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cefe9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:06:47, skipping insertion in model container [2022-07-14 15:06:47,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:06:47,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:06:47" (2/3) ... [2022-07-14 15:06:47,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cefe9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:06:47, skipping insertion in model container [2022-07-14 15:06:47,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:06:47,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:06:47" (3/3) ... [2022-07-14 15:06:47,760 INFO L354 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex9.i [2022-07-14 15:06:47,861 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:06:47,861 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:06:47,861 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:06:47,862 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:06:47,862 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:06:47,862 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:06:47,862 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:06:47,862 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:06:47,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 15:06:47,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-07-14 15:06:47,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:06:47,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:06:47,904 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:06:47,904 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:06:47,904 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:06:47,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 15:06:47,908 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-07-14 15:06:47,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:06:47,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:06:47,909 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:06:47,909 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:06:47,917 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem7#1, main_#t~post8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~mem6#1, main_~pp~0#1.base, main_~pp~0#1.offset, main_~qq~0#1.base, main_~qq~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4);main_~pp~0#1.base, main_~pp~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(4);main_~qq~0#1.base, main_~qq~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~nondet5#1; 10#L29-3true [2022-07-14 15:06:47,919 INFO L754 eck$LassoCheckResult]: Loop: 10#L29-3true call main_#t~mem6#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4); 7#L29-1true assume !!(main_#t~mem6#1 > 1);havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);main_#t~post8#1 := main_#t~mem7#1;call write~int(main_#t~post8#1 - 1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem7#1;havoc main_#t~post8#1;call main_#t~mem9#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(0, main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem10#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4); 8#L33true call rec(main_~pp~0#1.base, main_~pp~0#1.offset, main_#t~mem10#1);< 13#recENTRYtrue ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 11#L9true assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 15#recFINALtrue assume true; 14#recEXITtrue >#33#return; 5#L33-1true havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem12#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4);call write~int(main_#t~mem11#1 + main_#t~mem12#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem11#1;havoc main_#t~mem12#1; 10#L29-3true [2022-07-14 15:06:47,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:47,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2022-07-14 15:06:47,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:47,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113732935] [2022-07-14 15:06:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:47,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:48,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:06:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:48,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:06:48,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:48,142 INFO L85 PathProgramCache]: Analyzing trace with hash 51331199, now seen corresponding path program 1 times [2022-07-14 15:06:48,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:48,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292127545] [2022-07-14 15:06:48,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:48,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:48,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 15:06:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:06:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:06:48,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292127545] [2022-07-14 15:06:48,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292127545] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:06:48,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:06:48,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 15:06:48,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307801399] [2022-07-14 15:06:48,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:06:48,433 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:06:48,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:06:48,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 15:06:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 15:06:48,465 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 15:06:48,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:06:48,578 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-07-14 15:06:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 15:06:48,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2022-07-14 15:06:48,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-07-14 15:06:48,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 16 transitions. [2022-07-14 15:06:48,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-07-14 15:06:48,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-07-14 15:06:48,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2022-07-14 15:06:48,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:06:48,597 INFO L369 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-14 15:06:48,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2022-07-14 15:06:48,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-14 15:06:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 15:06:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-07-14 15:06:48,622 INFO L392 hiAutomatonCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-14 15:06:48,622 INFO L374 stractBuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-07-14 15:06:48,623 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:06:48,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2022-07-14 15:06:48,624 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-07-14 15:06:48,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:06:48,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:06:48,625 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:06:48,626 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:06:48,626 INFO L752 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 56#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem7#1, main_#t~post8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~mem6#1, main_~pp~0#1.base, main_~pp~0#1.offset, main_~qq~0#1.base, main_~qq~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4);main_~pp~0#1.base, main_~pp~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(4);main_~qq~0#1.base, main_~qq~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~nondet5#1; 57#L29-3 [2022-07-14 15:06:48,627 INFO L754 eck$LassoCheckResult]: Loop: 57#L29-3 call main_#t~mem6#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4); 58#L29-1 assume !!(main_#t~mem6#1 > 1);havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);main_#t~post8#1 := main_#t~mem7#1;call write~int(main_#t~post8#1 - 1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem7#1;havoc main_#t~post8#1;call main_#t~mem9#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(0, main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem10#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4); 61#L33 call rec(main_~pp~0#1.base, main_~pp~0#1.offset, main_#t~mem10#1);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 60#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 66#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 59#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 62#recFINAL assume true; 67#recEXIT >#31#return; 63#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 64#recFINAL assume true; 68#recEXIT >#33#return; 65#L33-1 havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem12#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4);call write~int(main_#t~mem11#1 + main_#t~mem12#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem11#1;havoc main_#t~mem12#1; 57#L29-3 [2022-07-14 15:06:48,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2022-07-14 15:06:48,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:48,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472079600] [2022-07-14 15:06:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:48,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:48,678 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:06:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:48,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:06:48,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:48,699 INFO L85 PathProgramCache]: Analyzing trace with hash 198344305, now seen corresponding path program 1 times [2022-07-14 15:06:48,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:48,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803482320] [2022-07-14 15:06:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:48,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:48,739 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:06:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:48,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:06:48,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:48,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1849555021, now seen corresponding path program 1 times [2022-07-14 15:06:48,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:48,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574759490] [2022-07-14 15:06:48,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:48,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:48,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 15:06:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 15:06:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 15:06:48,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:06:48,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574759490] [2022-07-14 15:06:48,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574759490] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 15:06:48,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271047506] [2022-07-14 15:06:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:48,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 15:06:48,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:48,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 15:06:48,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 15:06:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:49,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 15:06:49,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:06:49,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-07-14 15:06:49,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 15:06:49,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2022-07-14 15:06:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 15:06:49,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 15:06:49,441 WARN L833 $PredicateComparison]: unable to prove that (or (not (< 1 |c_ULTIMATE.start_main_#t~mem6#1|)) (forall ((v_ArrVal_138 (Array Int Int)) (v_ArrVal_140 Int) (v_ArrVal_141 (Array Int Int)) (|ULTIMATE.start_main_~pp~0#1.offset| Int) (v_ArrVal_137 (Array Int Int))) (or (not (<= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~qq~0#1.base|) |c_ULTIMATE.start_main_~qq~0#1.offset|) (+ v_ArrVal_140 1))) (< 0 (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~qq~0#1.base| v_ArrVal_141) |c_ULTIMATE.start_main_~pp~0#1.base| (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~qq~0#1.base| v_ArrVal_137) |c_ULTIMATE.start_main_~pp~0#1.base|) |ULTIMATE.start_main_~pp~0#1.offset| v_ArrVal_140)) |c_ULTIMATE.start_main_~qq~0#1.base| v_ArrVal_138) |c_ULTIMATE.start_main_~pp~0#1.base|) |ULTIMATE.start_main_~pp~0#1.offset|))))) is different from false [2022-07-14 15:06:49,458 INFO L390 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 35 treesize of output 27 [2022-07-14 15:06:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 15:06:49,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271047506] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 15:06:49,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 15:06:49,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 15 [2022-07-14 15:06:49,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743480023] [2022-07-14 15:06:49,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 15:06:50,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:06:50,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 15:06:50,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=144, Unknown=1, NotChecked=24, Total=210 [2022-07-14 15:06:50,385 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-14 15:06:50,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:06:50,484 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-07-14 15:06:50,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 15:06:50,485 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2022-07-14 15:06:50,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-07-14 15:06:50,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 19 transitions. [2022-07-14 15:06:50,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-14 15:06:50,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-14 15:06:50,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2022-07-14 15:06:50,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:06:50,488 INFO L369 hiAutomatonCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-07-14 15:06:50,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2022-07-14 15:06:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-14 15:06:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 15:06:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-07-14 15:06:50,490 INFO L392 hiAutomatonCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-07-14 15:06:50,490 INFO L374 stractBuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-07-14 15:06:50,491 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:06:50,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2022-07-14 15:06:50,491 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-07-14 15:06:50,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:06:50,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:06:50,492 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:06:50,492 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-14 15:06:50,492 INFO L752 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 218#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem7#1, main_#t~post8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem11#1, main_#t~mem12#1, main_#t~mem6#1, main_~pp~0#1.base, main_~pp~0#1.offset, main_~qq~0#1.base, main_~qq~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnHeap(4);main_~pp~0#1.base, main_~pp~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnHeap(4);main_~qq~0#1.base, main_~qq~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~nondet5#1; 219#L29-3 [2022-07-14 15:06:50,492 INFO L754 eck$LassoCheckResult]: Loop: 219#L29-3 call main_#t~mem6#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4); 220#L29-1 assume !!(main_#t~mem6#1 > 1);havoc main_#t~mem6#1;call main_#t~mem7#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);main_#t~post8#1 := main_#t~mem7#1;call write~int(main_#t~post8#1 - 1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem7#1;havoc main_#t~post8#1;call main_#t~mem9#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call write~int(main_#t~mem9#1, main_~pp~0#1.base, main_~pp~0#1.offset, 4);havoc main_#t~mem9#1;call write~int(0, main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem10#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4); 222#L33 call rec(main_~pp~0#1.base, main_~pp~0#1.offset, main_#t~mem10#1);< 228#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 221#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 223#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 228#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 221#L9 assume !(~i < 0);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4);~ip~0.base, ~ip~0.offset := #t~malloc1.base, #t~malloc1.offset;havoc #t~malloc1.base, #t~malloc1.offset; 223#L15 call rec(~ip~0.base, ~ip~0.offset, ~i - 1);< 228#recENTRY ~op.base, ~op.offset := #in~op.base, #in~op.offset;~i := #in~i; 221#L9 assume ~i < 0;call write~int(1 + ~i, ~op.base, ~op.offset, 4); 224#recFINAL assume true; 229#recEXIT >#31#return; 225#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 226#recFINAL assume true; 233#recEXIT >#31#return; 231#L15-1 call ULTIMATE.dealloc(~ip~0.base, ~ip~0.offset); 232#recFINAL assume true; 230#recEXIT >#33#return; 227#L33-1 havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~qq~0#1.base, main_~qq~0#1.offset, 4);call main_#t~mem12#1 := read~int(main_~pp~0#1.base, main_~pp~0#1.offset, 4);call write~int(main_#t~mem11#1 + main_#t~mem12#1, main_~qq~0#1.base, main_~qq~0#1.offset, 4);havoc main_#t~mem11#1;havoc main_#t~mem12#1; 219#L29-3 [2022-07-14 15:06:50,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:50,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 3 times [2022-07-14 15:06:50,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:50,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572066779] [2022-07-14 15:06:50,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:50,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:50,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:06:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:50,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:06:50,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:50,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1148543297, now seen corresponding path program 2 times [2022-07-14 15:06:50,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:50,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119861301] [2022-07-14 15:06:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:50,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:50,595 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:06:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:50,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:06:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:50,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1421169023, now seen corresponding path program 2 times [2022-07-14 15:06:50,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:06:50,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760922661] [2022-07-14 15:06:50,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:06:50,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:06:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:50,675 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:06:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:06:50,703 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:06:52,351 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:06:52,351 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:06:52,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:06:52,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:06:52,352 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 15:06:52,352 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:52,352 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:06:52,352 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:06:52,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex9.i_Iteration3_Lasso [2022-07-14 15:06:52,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:06:52,353 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:06:52,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:06:52,862 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:06:52,866 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 15:06:52,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:52,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:52,868 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) [2022-07-14 15:06:52,878 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 [2022-07-14 15:06:52,883 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 [2022-07-14 15:06:52,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:52,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:52,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:52,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:52,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:52,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:52,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:52,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:52,931 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 [2022-07-14 15:06:52,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:52,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:52,935 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) [2022-07-14 15:06:52,941 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 [2022-07-14 15:06:52,942 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 [2022-07-14 15:06:52,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:52,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:52,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:52,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:52,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:52,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:52,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:52,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,004 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 [2022-07-14 15:06:53,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,040 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) [2022-07-14 15:06:53,042 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 [2022-07-14 15:06:53,045 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 [2022-07-14 15:06:53,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:06:53,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:06:53,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,091 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 [2022-07-14 15:06:53,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,094 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) [2022-07-14 15:06:53,105 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 [2022-07-14 15:06:53,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:53,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:53,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:53,115 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 [2022-07-14 15:06:53,118 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,147 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 [2022-07-14 15:06:53,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,149 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) [2022-07-14 15:06:53,154 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 [2022-07-14 15:06:53,154 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 [2022-07-14 15:06:53,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:53,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:53,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:53,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,205 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 [2022-07-14 15:06:53,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,207 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) [2022-07-14 15:06:53,211 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 [2022-07-14 15:06:53,212 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 [2022-07-14 15:06:53,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:53,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:53,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:53,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,237 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 [2022-07-14 15:06:53,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,238 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) [2022-07-14 15:06:53,239 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 [2022-07-14 15:06:53,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 15:06:53,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:06:53,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:06:53,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,269 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 [2022-07-14 15:06:53,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,271 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) [2022-07-14 15:06:53,272 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 [2022-07-14 15:06:53,272 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 [2022-07-14 15:06:53,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:53,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:53,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:53,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-07-14 15:06:53,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,305 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) [2022-07-14 15:06:53,306 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 [2022-07-14 15:06:53,307 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 [2022-07-14 15:06:53,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:53,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:53,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:53,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,332 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 [2022-07-14 15:06:53,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,333 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:06:53,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-14 15:06:53,336 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 [2022-07-14 15:06:53,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:06:53,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:06:53,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-14 15:06:53,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,372 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:06:53,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-14 15:06:53,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 15:06:53,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:06:53,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:06:53,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-14 15:06:53,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,406 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:06:53,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-14 15:06:53,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-14 15:06:53,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:06:53,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:06:53,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-14 15:06:53,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,449 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:06:53,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-14 15:06:53,451 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 [2022-07-14 15:06:53,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:06:53,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:06:53,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-14 15:06:53,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,499 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:06:53,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-14 15:06:53,506 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 [2022-07-14 15:06:53,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:06:53,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:06:53,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:06:53,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:06:53,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-14 15:06:53,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,560 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:06:53,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-14 15:06:53,562 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 [2022-07-14 15:06:53,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:06:53,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:06:53,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:06:53,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:06:53,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:06:53,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:06:53,587 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 15:06:53,597 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-07-14 15:06:53,598 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-07-14 15:06:53,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:06:53,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:06:53,612 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:06:53,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-14 15:06:53,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 15:06:53,662 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-14 15:06:53,662 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 15:06:53,663 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0#1.base) ULTIMATE.start_main_~qq~0#1.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~qq~0#1.base) ULTIMATE.start_main_~qq~0#1.offset)_1 Supporting invariants [] [2022-07-14 15:06:53,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-14 15:06:53,696 INFO L293 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2022-07-14 15:06:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:06:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:53,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:06:53,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:06:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:06:53,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-14 15:06:53,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:06:53,908 INFO L356 Elim1Store]: treesize reduction 52, result has 52.3 percent of original size [2022-07-14 15:06:53,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 130 treesize of output 316 [2022-07-14 15:06:53,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2022-07-14 15:06:53,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 24 [2022-07-14 15:06:53,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-07-14 15:06:53,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-07-14 15:06:54,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-14 15:06:54,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2022-07-14 15:06:54,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-07-14 15:06:54,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-07-14 15:06:54,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 106 [2022-07-14 15:06:54,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 15:06:54,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 15:06:54,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 75 treesize of output 63 [2022-07-14 15:06:54,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 15:06:54,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 15:06:54,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 15:06:54,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 68 treesize of output 58 [2022-07-14 15:06:54,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-07-14 15:06:54,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 15:06:54,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 11 [2022-07-14 15:06:54,852 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-14 15:06:54,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 106 treesize of output 90 [2022-07-14 15:06:54,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-07-14 15:06:54,887 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-14 15:07:07,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 15:07:07,911 INFO L356 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2022-07-14 15:07:07,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 174 treesize of output 171 [2022-07-14 15:07:07,934 INFO L356 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2022-07-14 15:07:07,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2022-07-14 15:07:07,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 15:07:07,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2022-07-14 15:07:08,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-14 15:07:08,090 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-14 15:07:08,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 36 [2022-07-14 15:07:08,450 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 15:07:08,453 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 13 loop predicates [2022-07-14 15:07:08,454 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 15:07:08,566 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 19 transitions. cyclomatic complexity: 4. Second operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Result 33 states and 45 transitions. Complement of second has 17 states. [2022-07-14 15:07:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-07-14 15:07:08,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 15:07:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2022-07-14 15:07:08,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 8 transitions. Stem has 2 letters. Loop has 20 letters. [2022-07-14 15:07:08,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:07:08,573 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-14 15:07:08,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:07:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:07:08,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:07:08,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:07:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:07:08,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 50 conjunts are in the unsatisfiable core [2022-07-14 15:07:08,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:07:08,713 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-07-14 15:07:08,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 89 [2022-07-14 15:07:08,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-14 15:07:08,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-14 15:07:08,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-07-14 15:07:08,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-14 15:07:08,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 15 [2022-07-14 15:07:08,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-14 15:07:08,943 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-14 15:07:08,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 37 treesize of output 37 [2022-07-14 15:07:08,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-07-14 15:07:09,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 15:07:09,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 15:07:09,305 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-14 15:07:09,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 60 [2022-07-14 15:07:09,309 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:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.RefineBuchi.refineBuchi(RefineBuchi.java:204) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineBuchi(BuchiAutomatonCegarLoop.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineBuchi(BuchiAutomatonCegarLoop.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineBuchiAndReportRankingFunction(AbstractBuchiCegarLoop.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:363) 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) [2022-07-14 15:07:09,316 INFO L158 Benchmark]: Toolchain (without parser) took 22147.54ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 56.2MB in the beginning and 89.5MB in the end (delta: -33.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-07-14 15:07:09,320 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 77.6MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:07:09,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.20ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.9MB in the beginning and 66.3MB in the end (delta: -10.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 15:07:09,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.21ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 64.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:07:09,322 INFO L158 Benchmark]: Boogie Preprocessor took 17.77ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 63.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:07:09,323 INFO L158 Benchmark]: RCFGBuilder took 325.90ms. Allocated memory is still 94.4MB. Free memory was 63.7MB in the beginning and 53.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 15:07:09,324 INFO L158 Benchmark]: BuchiAutomizer took 21561.83ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 53.0MB in the beginning and 89.5MB in the end (delta: -36.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-07-14 15:07:09,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 77.6MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.20ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.9MB in the beginning and 66.3MB in the end (delta: -10.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.21ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 64.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.77ms. Allocated memory is still 94.4MB. Free memory was 64.9MB in the beginning and 63.9MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 325.90ms. Allocated memory is still 94.4MB. Free memory was 63.7MB in the beginning and 53.1MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 21561.83ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 53.0MB in the beginning and 89.5MB in the end (delta: -36.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * 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:150) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-14 15:07:09,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 15:07:09,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: No Interpolants