./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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/openbsd_cstrcpy-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 4b6873ae1a0d665798beb3dd9c0c48e89806da7dd46f1d2066800a52e0a2aa51 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 16:05:02,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 16:05:02,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 16:05:02,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 16:05:02,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 16:05:02,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 16:05:02,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 16:05:02,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 16:05:02,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 16:05:02,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 16:05:02,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 16:05:02,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 16:05:02,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 16:05:02,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 16:05:02,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 16:05:02,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 16:05:02,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 16:05:02,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 16:05:02,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 16:05:02,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 16:05:02,937 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 16:05:02,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 16:05:02,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 16:05:02,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 16:05:02,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 16:05:02,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 16:05:02,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 16:05:02,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 16:05:02,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 16:05:02,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 16:05:02,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 16:05:02,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 16:05:02,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 16:05:02,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 16:05:02,953 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 16:05:02,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 16:05:02,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 16:05:02,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 16:05:02,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 16:05:02,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 16:05:02,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 16:05:02,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 16:05:02,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 16:05:02,993 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 16:05:02,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 16:05:02,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 16:05:02,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 16:05:02,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 16:05:02,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 16:05:02,996 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 16:05:02,996 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 16:05:02,997 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 16:05:02,997 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 16:05:02,997 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 16:05:02,998 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 16:05:02,998 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 16:05:02,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 16:05:02,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 16:05:02,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 16:05:02,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 16:05:02,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 16:05:02,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 16:05:02,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 16:05:02,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 16:05:02,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 16:05:02,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 16:05:02,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 16:05:03,000 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 16:05:03,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 16:05:03,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 16:05:03,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 16:05:03,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 16:05:03,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 16:05:03,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 16:05:03,006 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 16:05:03,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b6873ae1a0d665798beb3dd9c0c48e89806da7dd46f1d2066800a52e0a2aa51 [2022-07-23 16:05:03,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 16:05:03,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 16:05:03,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 16:05:03,208 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 16:05:03,209 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 16:05:03,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca-2.i [2022-07-23 16:05:03,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5271b82d/cfd61daf5a6c491c91f7b18e903e42e3/FLAGf23b1e452 [2022-07-23 16:05:03,622 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 16:05:03,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca-2.i [2022-07-23 16:05:03,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5271b82d/cfd61daf5a6c491c91f7b18e903e42e3/FLAGf23b1e452 [2022-07-23 16:05:03,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5271b82d/cfd61daf5a6c491c91f7b18e903e42e3 [2022-07-23 16:05:03,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 16:05:03,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 16:05:03,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 16:05:03,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 16:05:03,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 16:05:03,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:05:03" (1/1) ... [2022-07-23 16:05:03,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e04dac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:03, skipping insertion in model container [2022-07-23 16:05:03,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 04:05:03" (1/1) ... [2022-07-23 16:05:03,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 16:05:04,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 16:05:04,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 16:05:04,181 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 16:05:04,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 16:05:04,249 INFO L208 MainTranslator]: Completed translation [2022-07-23 16:05:04,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04 WrapperNode [2022-07-23 16:05:04,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 16:05:04,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 16:05:04,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 16:05:04,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 16:05:04,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,294 INFO L137 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-07-23 16:05:04,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 16:05:04,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 16:05:04,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 16:05:04,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 16:05:04,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 16:05:04,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 16:05:04,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 16:05:04,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 16:05:04,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (1/1) ... [2022-07-23 16:05:04,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:04,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:04,393 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) [2022-07-23 16:05:04,398 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 [2022-07-23 16:05:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 16:05:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 16:05:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 16:05:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 16:05:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 16:05:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 16:05:04,478 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 16:05:04,480 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 16:05:04,573 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 16:05:04,576 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 16:05:04,577 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 16:05:04,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:05:04 BoogieIcfgContainer [2022-07-23 16:05:04,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 16:05:04,579 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 16:05:04,579 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 16:05:04,581 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 16:05:04,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 16:05:04,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 04:05:03" (1/3) ... [2022-07-23 16:05:04,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7becc889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 04:05:04, skipping insertion in model container [2022-07-23 16:05:04,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 16:05:04,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 04:05:04" (2/3) ... [2022-07-23 16:05:04,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7becc889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 04:05:04, skipping insertion in model container [2022-07-23 16:05:04,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 16:05:04,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:05:04" (3/3) ... [2022-07-23 16:05:04,585 INFO L354 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcpy-alloca-2.i [2022-07-23 16:05:04,634 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 16:05:04,636 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 16:05:04,636 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 16:05:04,636 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 16:05:04,636 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 16:05:04,637 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 16:05:04,637 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 16:05:04,637 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 16:05:04,643 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) [2022-07-23 16:05:04,659 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-07-23 16:05:04,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:05:04,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:05:04,663 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 16:05:04,663 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 16:05:04,664 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 16:05:04,664 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) [2022-07-23 16:05:04,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-07-23 16:05:04,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:05:04,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:05:04,670 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 16:05:04,674 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 16:05:04,680 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 10#L523true assume !(main_~length1~0#1 < 1); 11#L523-2true assume !(main_~length2~0#1 < 1); 12#L526-1true assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 2#L534-3true [2022-07-23 16:05:04,681 INFO L754 eck$LassoCheckResult]: Loop: 2#L534-3true assume !!(main_~i~0#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 9#L534-2true main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 2#L534-3true [2022-07-23 16:05:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2022-07-23 16:05:04,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:04,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280902697] [2022-07-23 16:05:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:04,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:04,781 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:04,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:04,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:04,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1827, now seen corresponding path program 1 times [2022-07-23 16:05:04,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:04,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959126238] [2022-07-23 16:05:04,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:04,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:04,814 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:04,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:04,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:04,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939692, now seen corresponding path program 1 times [2022-07-23 16:05:04,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:04,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008048712] [2022-07-23 16:05:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:04,844 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:04,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:05,173 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 16:05:05,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 16:05:05,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 16:05:05,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 16:05:05,174 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 16:05:05,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:05,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 16:05:05,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 16:05:05,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcpy-alloca-2.i_Iteration1_Lasso [2022-07-23 16:05:05,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 16:05:05,178 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 16:05:05,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:05,547 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 16:05:05,550 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 16:05:05,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:05,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:05,553 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) [2022-07-23 16:05:05,554 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 [2022-07-23 16:05:05,555 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 [2022-07-23 16:05:05,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:05,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:05,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:05,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:05,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:05,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:05,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:05,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:05,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-23 16:05:05,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:05,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:05,597 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) [2022-07-23 16:05:05,598 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 [2022-07-23 16:05:05,600 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 [2022-07-23 16:05:05,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:05,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:05,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:05,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:05,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:05,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:05,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:05,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:05,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-23 16:05:05,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:05,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:05,633 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) [2022-07-23 16:05:05,635 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 [2022-07-23 16:05:05,635 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 [2022-07-23 16:05:05,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:05,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:05,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:05,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:05,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:05:05,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:05:05,670 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 16:05:05,688 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-07-23 16:05:05,688 INFO L444 ModelExtractionUtils]: 14 out of 28 variables were initially zero. Simplification set additionally 10 variables to zero. [2022-07-23 16:05:05,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:05,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:05,691 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) [2022-07-23 16:05:05,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 16:05:05,719 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 [2022-07-23 16:05:05,736 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-23 16:05:05,737 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 16:05:05,737 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1) = -1*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetString~0#1.offset >= 0] [2022-07-23 16:05:05,771 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 [2022-07-23 16:05:05,788 INFO L293 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2022-07-23 16:05:05,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:05:05,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 16:05:05,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:05:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:05:05,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 16:05:05,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:05:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 16:05:05,930 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 16:05:05,932 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:05:06,013 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 47 transitions. Complement of second has 8 states. [2022-07-23 16:05:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 16:05:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:05:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-07-23 16:05:06,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-23 16:05:06,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:05:06,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-23 16:05:06,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:05:06,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-23 16:05:06,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:05:06,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2022-07-23 16:05:06,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 16:05:06,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 12 states and 16 transitions. [2022-07-23 16:05:06,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-07-23 16:05:06,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-23 16:05:06,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2022-07-23 16:05:06,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 16:05:06,027 INFO L369 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-07-23 16:05:06,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2022-07-23 16:05:06,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-07-23 16:05:06,042 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) [2022-07-23 16:05:06,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-07-23 16:05:06,043 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-07-23 16:05:06,043 INFO L374 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-07-23 16:05:06,043 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 16:05:06,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-07-23 16:05:06,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 16:05:06,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:05:06,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:05:06,045 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 16:05:06,045 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-23 16:05:06,045 INFO L752 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 139#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 140#L523 assume !(main_~length1~0#1 < 1); 141#L523-2 assume !(main_~length2~0#1 < 1); 142#L526-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 134#L534-3 assume !(main_~i~0#1 < main_~length2~0#1 - 1); 135#L534-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcpy } true;cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset, cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstrcpy_#res#1.base, cstrcpy_#res#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset, cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset, cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, cstrcpy_~from#1.base, cstrcpy_~from#1.offset, cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset;cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset := cstrcpy_~to#1.base, cstrcpy_~to#1.offset; 143#L517-4 [2022-07-23 16:05:06,045 INFO L754 eck$LassoCheckResult]: Loop: 143#L517-4 call cstrcpy_#t~mem4#1 := read~int(cstrcpy_~from#1.base, cstrcpy_~from#1.offset, 1);call write~int(cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, 1); 144#L517-1 assume !!(0 != cstrcpy_#t~mem4#1);havoc cstrcpy_#t~mem4#1; 145#L517-3 cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset;cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;havoc cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset; 143#L517-4 [2022-07-23 16:05:06,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:06,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939634, now seen corresponding path program 1 times [2022-07-23 16:05:06,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:06,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813337290] [2022-07-23 16:05:06,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:06,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,060 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:06,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 1 times [2022-07-23 16:05:06,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:06,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195958692] [2022-07-23 16:05:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:06,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:06,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:06,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1713552629, now seen corresponding path program 1 times [2022-07-23 16:05:06,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:06,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162882189] [2022-07-23 16:05:06,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:05:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 16:05:06,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 16:05:06,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162882189] [2022-07-23 16:05:06,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162882189] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 16:05:06,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 16:05:06,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 16:05:06,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63025659] [2022-07-23 16:05:06,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 16:05:06,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 16:05:06,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 16:05:06,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 16:05:06,276 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-07-23 16:05:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 16:05:06,331 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2022-07-23 16:05:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 16:05:06,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2022-07-23 16:05:06,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 16:05:06,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 13 states and 16 transitions. [2022-07-23 16:05:06,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-23 16:05:06,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-23 16:05:06,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2022-07-23 16:05:06,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 16:05:06,334 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-07-23 16:05:06,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2022-07-23 16:05:06,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-07-23 16:05:06,335 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) [2022-07-23 16:05:06,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-07-23 16:05:06,335 INFO L392 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-23 16:05:06,336 INFO L374 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-07-23 16:05:06,336 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 16:05:06,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-07-23 16:05:06,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-23 16:05:06,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 16:05:06,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 16:05:06,337 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 16:05:06,337 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-23 16:05:06,337 INFO L752 eck$LassoCheckResult]: Stem: 184#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 185#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 186#L523 assume !(main_~length1~0#1 < 1); 187#L523-2 assume !(main_~length2~0#1 < 1); 188#L526-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 180#L534-3 assume !!(main_~i~0#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 181#L534-2 main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 182#L534-3 assume !(main_~i~0#1 < main_~length2~0#1 - 1); 183#L534-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcpy } true;cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset, cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstrcpy_#res#1.base, cstrcpy_#res#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset, cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset, cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, cstrcpy_~from#1.base, cstrcpy_~from#1.offset, cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_#in~to#1.base, cstrcpy_#in~to#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_#in~from#1.base, cstrcpy_#in~from#1.offset;cstrcpy_~save~0#1.base, cstrcpy_~save~0#1.offset := cstrcpy_~to#1.base, cstrcpy_~to#1.offset; 189#L517-4 [2022-07-23 16:05:06,337 INFO L754 eck$LassoCheckResult]: Loop: 189#L517-4 call cstrcpy_#t~mem4#1 := read~int(cstrcpy_~from#1.base, cstrcpy_~from#1.offset, 1);call write~int(cstrcpy_#t~mem4#1, cstrcpy_~to#1.base, cstrcpy_~to#1.offset, 1); 190#L517-1 assume !!(0 != cstrcpy_#t~mem4#1);havoc cstrcpy_#t~mem4#1; 191#L517-3 cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;cstrcpy_~from#1.base, cstrcpy_~from#1.offset := cstrcpy_~from#1.base, 1 + cstrcpy_~from#1.offset;havoc cstrcpy_#t~pre2#1.base, cstrcpy_#t~pre2#1.offset;cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;cstrcpy_~to#1.base, cstrcpy_~to#1.offset := cstrcpy_~to#1.base, 1 + cstrcpy_~to#1.offset;havoc cstrcpy_#t~pre3#1.base, cstrcpy_#t~pre3#1.offset; 189#L517-4 [2022-07-23 16:05:06,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1302257236, now seen corresponding path program 1 times [2022-07-23 16:05:06,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:06,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16919829] [2022-07-23 16:05:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:06,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,372 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:06,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 2 times [2022-07-23 16:05:06,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:06,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755387921] [2022-07-23 16:05:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,411 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:06,412 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 [2022-07-23 16:05:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash -894230189, now seen corresponding path program 1 times [2022-07-23 16:05:06,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 16:05:06,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954702243] [2022-07-23 16:05:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 16:05:06,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 16:05:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,448 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 16:05:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 16:05:06,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 16:05:06,951 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 16:05:06,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 16:05:06,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 16:05:06,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 16:05:06,951 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 16:05:06,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:06,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 16:05:06,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 16:05:06,951 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcpy-alloca-2.i_Iteration3_Lasso [2022-07-23 16:05:06,951 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 16:05:06,951 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 16:05:06,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:06,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:06,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:06,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:06,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:06,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:06,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 16:05:07,729 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 16:05:07,730 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 16:05:07,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,731 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) [2022-07-23 16:05:07,732 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 [2022-07-23 16:05:07,733 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 [2022-07-23 16:05:07,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:07,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:07,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:07,755 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:07,774 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 [2022-07-23 16:05:07,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,775 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) [2022-07-23 16:05:07,776 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 [2022-07-23 16:05:07,777 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 [2022-07-23 16:05:07,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:07,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:07,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:07,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:07,813 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 [2022-07-23 16:05:07,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,814 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) [2022-07-23 16:05:07,815 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 [2022-07-23 16:05:07,816 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 [2022-07-23 16:05:07,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:07,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:07,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:07,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:07,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-23 16:05:07,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,840 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) [2022-07-23 16:05:07,841 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 [2022-07-23 16:05:07,844 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 [2022-07-23 16:05:07,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:07,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:07,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:07,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:07,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-23 16:05:07,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,876 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) [2022-07-23 16:05:07,877 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 [2022-07-23 16:05:07,879 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 [2022-07-23 16:05:07,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:05:07,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:05:07,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:07,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-23 16:05:07,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,918 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) [2022-07-23 16:05:07,919 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 [2022-07-23 16:05:07,920 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 [2022-07-23 16:05:07,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:07,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:07,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:07,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:07,947 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 [2022-07-23 16:05:07,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,949 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) [2022-07-23 16:05:07,950 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 [2022-07-23 16:05:07,951 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 [2022-07-23 16:05:07,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:05:07,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:05:07,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:07,978 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 [2022-07-23 16:05:07,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:07,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:07,979 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) [2022-07-23 16:05:07,979 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 [2022-07-23 16:05:07,981 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 [2022-07-23 16:05:07,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:07,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 16:05:07,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:07,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:07,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:07,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 16:05:07,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 16:05:07,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:08,004 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 [2022-07-23 16:05:08,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:08,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:08,005 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) [2022-07-23 16:05:08,006 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 [2022-07-23 16:05:08,012 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 [2022-07-23 16:05:08,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:08,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:08,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:08,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:08,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:05:08,019 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:05:08,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 16:05:08,036 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 [2022-07-23 16:05:08,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:08,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:08,037 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) [2022-07-23 16:05:08,037 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 [2022-07-23 16:05:08,039 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 [2022-07-23 16:05:08,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 16:05:08,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 16:05:08,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 16:05:08,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 16:05:08,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 16:05:08,054 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 16:05:08,070 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 16:05:08,116 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2022-07-23 16:05:08,116 INFO L444 ModelExtractionUtils]: 11 out of 46 variables were initially zero. Simplification set additionally 30 variables to zero. [2022-07-23 16:05:08,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 16:05:08,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 16:05:08,117 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) [2022-07-23 16:05:08,118 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 [2022-07-23 16:05:08,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 16:05:08,140 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-23 16:05:08,140 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 16:05:08,140 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcpy_~to#1.offset, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_cstrcpy_~to#1.offset + 2*ULTIMATE.start_main_~i~0#1 Supporting invariants [2*ULTIMATE.start_main_~i~0#1 - 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_2 >= 0] [2022-07-23 16:05:08,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-07-23 16:05:08,203 INFO L293 tatePredicateManager]: 12 out of 15 supporting invariants were superfluous and have been removed [2022-07-23 16:05:08,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 16:05:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:05:08,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-23 16:05:08,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:05:08,290 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-23 16:05:08,291 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-23 16:05:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 16:05:08,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 16:05:08,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 16:05:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 16:05:08,394 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2022-07-23 16:05:08,395 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:05:08,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 7 states. [2022-07-23 16:05:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 16:05:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 16:05:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2022-07-23 16:05:08,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 9 letters. Loop has 3 letters. [2022-07-23 16:05:08,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:05:08,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 12 letters. Loop has 3 letters. [2022-07-23 16:05:08,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:05:08,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 9 letters. Loop has 6 letters. [2022-07-23 16:05:08,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 16:05:08,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2022-07-23 16:05:08,471 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 16:05:08,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2022-07-23 16:05:08,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 16:05:08,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 16:05:08,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 16:05:08,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 16:05:08,471 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 16:05:08,471 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 16:05:08,471 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 16:05:08,471 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 16:05:08,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 16:05:08,471 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 16:05:08,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 16:05:08,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 04:05:08 BoogieIcfgContainer [2022-07-23 16:05:08,476 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 16:05:08,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 16:05:08,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 16:05:08,477 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 16:05:08,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:05:04" (3/4) ... [2022-07-23 16:05:08,479 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 16:05:08,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 16:05:08,479 INFO L158 Benchmark]: Toolchain (without parser) took 4491.99ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 81.8MB in the beginning and 52.8MB in the end (delta: 29.0MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-07-23 16:05:08,480 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory was 57.9MB in the beginning and 57.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 16:05:08,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.91ms. Allocated memory is still 107.0MB. Free memory was 81.6MB in the beginning and 66.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-23 16:05:08,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.70ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 16:05:08,480 INFO L158 Benchmark]: Boogie Preprocessor took 48.98ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 63.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 16:05:08,481 INFO L158 Benchmark]: RCFGBuilder took 233.25ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 82.5MB in the end (delta: -19.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-07-23 16:05:08,495 INFO L158 Benchmark]: BuchiAutomizer took 3896.93ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 82.5MB in the beginning and 52.8MB in the end (delta: 29.6MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2022-07-23 16:05:08,495 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 130.0MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 16:05:08,497 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 86.0MB. Free memory was 57.9MB in the beginning and 57.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.91ms. Allocated memory is still 107.0MB. Free memory was 81.6MB in the beginning and 66.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.70ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.98ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 63.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 233.25ms. Allocated memory is still 107.0MB. Free memory was 62.9MB in the beginning and 82.5MB in the end (delta: -19.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3896.93ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 82.5MB in the beginning and 52.8MB in the end (delta: 29.6MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 130.0MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function -1 * to + 2 * i and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 30 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital165 mio100 ax111 hnf100 lsp84 ukn90 mio100 lsp52 div100 bol100 ite100 ukn100 eq177 hnf90 smp100 dnf100 smp100 tf100 neg98 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 104ms VariablesStem: 8 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-23 16:05:08,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-07-23 16:05:08,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE