./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/array01-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/array-memsafety/array01-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash c01598788c0e593641b4d52eb46aec8832108f2ffb3b67e30286093c8a1926f8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:40:25,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:40:25,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:40:25,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:40:25,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:40:25,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:40:25,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:40:25,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:40:25,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:40:25,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:40:25,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:40:25,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:40:25,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:40:25,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:40:25,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:40:25,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:40:25,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:40:25,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:40:25,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:40:26,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:40:26,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:40:26,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:40:26,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:40:26,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:40:26,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:40:26,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:40:26,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:40:26,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:40:26,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:40:26,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:40:26,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:40:26,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:40:26,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:40:26,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:40:26,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:40:26,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:40:26,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:40:26,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:40:26,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:40:26,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:40:26,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:40:26,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:40:26,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:40:26,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:40:26,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:40:26,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:40:26,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:40:26,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:40:26,077 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:40:26,077 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:40:26,077 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:40:26,077 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:40:26,078 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:40:26,078 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:40:26,078 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:40:26,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:40:26,079 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:40:26,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:40:26,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:40:26,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:40:26,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:40:26,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:40:26,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:40:26,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:40:26,080 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:40:26,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:40:26,081 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:40:26,081 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:40:26,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:40:26,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:40:26,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:40:26,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:40:26,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:40:26,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:40:26,083 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:40:26,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c01598788c0e593641b4d52eb46aec8832108f2ffb3b67e30286093c8a1926f8 [2021-12-22 20:40:26,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:40:26,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:40:26,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:40:26,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:40:26,392 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:40:26,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2021-12-22 20:40:26,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56538701d/6415bc512b5843b7ad98f6bc52ee8577/FLAG721e3db20 [2021-12-22 20:40:27,011 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:40:27,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array01-alloca-2.i [2021-12-22 20:40:27,045 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56538701d/6415bc512b5843b7ad98f6bc52ee8577/FLAG721e3db20 [2021-12-22 20:40:27,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56538701d/6415bc512b5843b7ad98f6bc52ee8577 [2021-12-22 20:40:27,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:40:27,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:40:27,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:40:27,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:40:27,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:40:27,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4993005e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27, skipping insertion in model container [2021-12-22 20:40:27,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:40:27,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:40:27,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:40:27,760 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:40:27,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:40:27,874 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:40:27,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27 WrapperNode [2021-12-22 20:40:27,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:40:27,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:40:27,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:40:27,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:40:27,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,939 INFO L137 Inliner]: procedures = 116, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2021-12-22 20:40:27,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:40:27,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:40:27,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:40:27,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:40:27,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:27,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:40:27,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:40:28,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:40:28,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:40:28,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (1/1) ... [2021-12-22 20:40:28,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:28,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:28,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:40:28,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-22 20:40:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 20:40:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 20:40:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 20:40:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 20:40:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:40:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:40:28,197 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:40:28,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:40:28,395 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:40:28,399 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:40:28,402 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-22 20:40:28,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:40:28 BoogieIcfgContainer [2021-12-22 20:40:28,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:40:28,416 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:40:28,416 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:40:28,418 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:40:28,419 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:40:28,419 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:40:27" (1/3) ... [2021-12-22 20:40:28,420 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38557c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:40:28, skipping insertion in model container [2021-12-22 20:40:28,420 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:40:28,420 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:27" (2/3) ... [2021-12-22 20:40:28,425 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38557c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:40:28, skipping insertion in model container [2021-12-22 20:40:28,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:40:28,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:40:28" (3/3) ... [2021-12-22 20:40:28,426 INFO L388 chiAutomizerObserver]: Analyzing ICFG array01-alloca-2.i [2021-12-22 20:40:28,532 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:40:28,532 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:40:28,532 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:40:28,532 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:40:28,532 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:40:28,533 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:40:28,533 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:40:28,533 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:40:28,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:28,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-22 20:40:28,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:28,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:28,601 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-22 20:40:28,601 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 20:40:28,602 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:40:28,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:28,604 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-22 20:40:28,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:28,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:28,605 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-22 20:40:28,605 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 20:40:28,611 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~k~0#1, main_#t~ret11#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 12#L526true assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 4#L526-2true call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~k~0#1 := 0; 5#L531-3true [2021-12-22 20:40:28,611 INFO L793 eck$LassoCheckResult]: Loop: 5#L531-3true assume !!(main_~k~0#1 < main_~array_size~0#1);call write~int(main_#t~nondet10#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~k~0#1, 4);havoc main_#t~nondet10#1; 13#L531-2true main_#t~post9#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 5#L531-3true [2021-12-22 20:40:28,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-12-22 20:40:28,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:28,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897450640] [2021-12-22 20:40:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:28,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:28,737 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:28,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:28,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:28,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2021-12-22 20:40:28,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:28,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918595270] [2021-12-22 20:40:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:28,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:28,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:28,819 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:28,821 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2021-12-22 20:40:28,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:28,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118020593] [2021-12-22 20:40:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:28,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:28,899 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:28,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:29,322 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:40:29,322 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:40:29,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:40:29,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:40:29,323 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 20:40:29,323 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:29,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:40:29,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:40:29,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: array01-alloca-2.i_Iteration1_Lasso [2021-12-22 20:40:29,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:40:29,324 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:40:29,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:29,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:40:29,728 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 20:40:29,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:29,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:29,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:40:29,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-22 20:40:29,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:40:29,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:29,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:40:29,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:29,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:29,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:29,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:40:29,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:40:29,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:29,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:29,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:29,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:29,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:40:29,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:40:29,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:29,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:29,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:29,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:29,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:29,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:29,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-22 20:40:29,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:29,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:29,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:29,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:29,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:40:29,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:40:29,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:29,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:29,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:29,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:29,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:29,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:29,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-22 20:40:29,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:30,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:30,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:30,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:30,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:40:30,045 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 [2021-12-22 20:40:30,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:40:30,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:30,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:30,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:30,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:30,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:30,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:30,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:30,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-22 20:40:30,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:30,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:30,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:40:30,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:40:30,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-22 20:40:30,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:30,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:30,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:30,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:30,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:30,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:30,205 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 20:40:30,276 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-22 20:40:30,276 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-12-22 20:40:30,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:30,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:30,295 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:40:30,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-22 20:40:30,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 20:40:30,349 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-22 20:40:30,349 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 20:40:30,350 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1) = -2*ULTIMATE.start_main_~k~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1 Supporting invariants [-2*ULTIMATE.start_main_~array_size~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1 >= 0] [2021-12-22 20:40:30,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:30,388 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-12-22 20:40:30,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:30,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-22 20:40:30,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:40:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:30,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-22 20:40:30,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:40:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:40:30,511 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-22 20:40:30,512 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:30,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 50 transitions. Complement of second has 9 states. [2021-12-22 20:40:30,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 20:40:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2021-12-22 20:40:30,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-22 20:40:30,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:30,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-22 20:40:30,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:30,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-22 20:40:30,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:30,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2021-12-22 20:40:30,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 20:40:30,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 16 transitions. [2021-12-22 20:40:30,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-22 20:40:30,587 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-22 20:40:30,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-12-22 20:40:30,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:40:30,588 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-22 20:40:30,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-12-22 20:40:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-22 20:40:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-12-22 20:40:30,610 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-22 20:40:30,610 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-12-22 20:40:30,611 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:40:30,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-12-22 20:40:30,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 20:40:30,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:30,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:30,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-22 20:40:30,612 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-22 20:40:30,613 INFO L791 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~k~0#1, main_#t~ret11#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 128#L526 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 125#L526-2 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~k~0#1 := 0; 121#L531-3 assume !(main_~k~0#1 < main_~array_size~0#1); 123#L531-4 assume { :begin_inline_test_fun } true;test_fun_#in~a#1.base, test_fun_#in~a#1.offset, test_fun_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc test_fun_#res#1;havoc test_fun_#t~mem4#1, test_fun_#t~post5#1, test_fun_#t~post6#1, test_fun_#t~mem3#1, test_fun_#t~post2#1, test_fun_~a#1.base, test_fun_~a#1.offset, test_fun_~N#1, test_fun_~i~0#1, test_fun_~res~0#1;test_fun_~a#1.base, test_fun_~a#1.offset := test_fun_#in~a#1.base, test_fun_#in~a#1.offset;test_fun_~N#1 := test_fun_#in~N#1;havoc test_fun_~i~0#1;test_fun_~res~0#1 := 0;test_fun_~i~0#1 := 0; 129#L516-3 [2021-12-22 20:40:30,613 INFO L793 eck$LassoCheckResult]: Loop: 129#L516-3 assume !!(test_fun_~i~0#1 < test_fun_~N#1); 130#L517-3 call test_fun_#t~mem3#1 := read~int(test_fun_~a#1.base, test_fun_~a#1.offset + 4 * test_fun_~i~0#1, 4); 132#L517-1 assume !(test_fun_#t~mem3#1 > 0);havoc test_fun_#t~mem3#1; 131#L516-2 test_fun_#t~post2#1 := test_fun_~i~0#1;test_fun_~i~0#1 := 1 + test_fun_#t~post2#1;havoc test_fun_#t~post2#1; 129#L516-3 [2021-12-22 20:40:30,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:30,613 INFO L85 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2021-12-22 20:40:30,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:30,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382647038] [2021-12-22 20:40:30,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:30,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:40:30,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:40:30,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382647038] [2021-12-22 20:40:30,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382647038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:40:30,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:40:30,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 20:40:30,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347076491] [2021-12-22 20:40:30,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:40:30,666 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-22 20:40:30,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:30,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1882892, now seen corresponding path program 1 times [2021-12-22 20:40:30,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:30,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294723691] [2021-12-22 20:40:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:30,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,672 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,676 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:30,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:40:30,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 20:40:30,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 20:40:30,723 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:40:30,821 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-12-22 20:40:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 20:40:30,822 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-12-22 20:40:30,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 20:40:30,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2021-12-22 20:40:30,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-22 20:40:30,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-22 20:40:30,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-12-22 20:40:30,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:40:30,823 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-12-22 20:40:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-12-22 20:40:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-12-22 20:40:30,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2021-12-22 20:40:30,824 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-22 20:40:30,824 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-22 20:40:30,824 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:40:30,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2021-12-22 20:40:30,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-22 20:40:30,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:30,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:30,825 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:40:30,825 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-22 20:40:30,825 INFO L791 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~k~0#1, main_#t~ret11#1, main_~array_size~0#1, main_~numbers~0#1.base, main_~numbers~0#1.offset;main_~array_size~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 160#L526 assume !(main_~array_size~0#1 < 1 || main_~array_size~0#1 % 4294967296 >= 536870911); 153#L526-2 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(4 * main_~array_size~0#1);main_~numbers~0#1.base, main_~numbers~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~k~0#1 := 0; 154#L531-3 assume !!(main_~k~0#1 < main_~array_size~0#1);call write~int(main_#t~nondet10#1, main_~numbers~0#1.base, main_~numbers~0#1.offset + 4 * main_~k~0#1, 4);havoc main_#t~nondet10#1; 155#L531-2 main_#t~post9#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 156#L531-3 assume !(main_~k~0#1 < main_~array_size~0#1); 157#L531-4 assume { :begin_inline_test_fun } true;test_fun_#in~a#1.base, test_fun_#in~a#1.offset, test_fun_#in~N#1 := main_~numbers~0#1.base, main_~numbers~0#1.offset, main_~array_size~0#1;havoc test_fun_#res#1;havoc test_fun_#t~mem4#1, test_fun_#t~post5#1, test_fun_#t~post6#1, test_fun_#t~mem3#1, test_fun_#t~post2#1, test_fun_~a#1.base, test_fun_~a#1.offset, test_fun_~N#1, test_fun_~i~0#1, test_fun_~res~0#1;test_fun_~a#1.base, test_fun_~a#1.offset := test_fun_#in~a#1.base, test_fun_#in~a#1.offset;test_fun_~N#1 := test_fun_#in~N#1;havoc test_fun_~i~0#1;test_fun_~res~0#1 := 0;test_fun_~i~0#1 := 0; 161#L516-3 [2021-12-22 20:40:30,825 INFO L793 eck$LassoCheckResult]: Loop: 161#L516-3 assume !!(test_fun_~i~0#1 < test_fun_~N#1); 162#L517-3 call test_fun_#t~mem3#1 := read~int(test_fun_~a#1.base, test_fun_~a#1.offset + 4 * test_fun_~i~0#1, 4); 164#L517-1 assume !(test_fun_#t~mem3#1 > 0);havoc test_fun_#t~mem3#1; 163#L516-2 test_fun_#t~post2#1 := test_fun_~i~0#1;test_fun_~i~0#1 := 1 + test_fun_#t~post2#1;havoc test_fun_#t~post2#1; 161#L516-3 [2021-12-22 20:40:30,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2021-12-22 20:40:30,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:30,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447090606] [2021-12-22 20:40:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:30,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,837 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:30,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1882892, now seen corresponding path program 2 times [2021-12-22 20:40:30,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:30,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715791610] [2021-12-22 20:40:30,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:30,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,878 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,922 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:30,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:30,923 INFO L85 PathProgramCache]: Analyzing trace with hash -357810950, now seen corresponding path program 1 times [2021-12-22 20:40:30,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:30,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473632588] [2021-12-22 20:40:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:30,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,944 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:30,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:30,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-22 20:40:31,335 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:40:31,336 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:40:31,336 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:40:31,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:40:31,336 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 20:40:31,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:31,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:40:31,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:40:31,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: array01-alloca-2.i_Iteration3_Lasso [2021-12-22 20:40:31,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:40:31,336 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:40:31,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:31,373 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalArgumentException at de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) at java.base/java.util.AbstractMap.putAll(AbstractMap.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.PureSubstitution.(PureSubstitution.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.(Substitution.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceMapReads(MapEliminator.java:518) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:342) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-22 20:40:31,376 INFO L158 Benchmark]: Toolchain (without parser) took 4045.62ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 61.0MB in the beginning and 42.6MB in the end (delta: 18.4MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2021-12-22 20:40:31,377 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:40:31,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.36ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 60.8MB in the beginning and 67.8MB in the end (delta: -7.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-12-22 20:40:31,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.41ms. Allocated memory is still 98.6MB. Free memory was 67.8MB in the beginning and 66.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:40:31,378 INFO L158 Benchmark]: Boogie Preprocessor took 48.78ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 64.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:40:31,378 INFO L158 Benchmark]: RCFGBuilder took 416.95ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 54.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 20:40:31,378 INFO L158 Benchmark]: BuchiAutomizer took 2959.35ms. Allocated memory is still 98.6MB. Free memory was 54.4MB in the beginning and 42.6MB in the end (delta: 11.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-22 20:40:31,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.36ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 60.8MB in the beginning and 67.8MB in the end (delta: -7.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.41ms. Allocated memory is still 98.6MB. Free memory was 67.8MB in the beginning and 66.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.78ms. Allocated memory is still 98.6MB. Free memory was 66.0MB in the beginning and 64.7MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 416.95ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 54.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2959.35ms. Allocated memory is still 98.6MB. Free memory was 54.4MB in the beginning and 42.6MB in the end (delta: 11.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalArgumentException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalArgumentException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-22 20:40:31,419 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*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: null