./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_security.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/psyco/psyco_security.c -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 d4a7e0762948cbc310fcf63fb24dcbf7ee6356cb ............................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:14:27,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:14:27,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:14:27,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:14:27,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:14:27,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:14:27,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:14:27,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:14:27,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:14:27,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:14:27,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:14:27,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:14:27,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:14:27,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:14:27,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:14:27,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:14:27,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:14:27,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:14:27,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:14:27,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:14:28,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:14:28,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:14:28,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:14:28,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:14:28,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:14:28,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:14:28,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:14:28,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:14:28,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:14:28,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:14:28,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:14:28,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:14:28,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:14:28,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:14:28,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:14:28,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:14:28,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:14:28,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:14:28,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:14:28,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:14:28,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:14:28,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:14:28,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:14:28,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:14:28,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:14:28,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:14:28,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:14:28,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:14:28,042 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:14:28,043 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:14:28,043 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:14:28,043 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:14:28,043 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:14:28,043 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:14:28,044 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:14:28,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:14:28,044 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:14:28,044 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:14:28,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:14:28,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:14:28,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:14:28,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:14:28,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:14:28,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:14:28,051 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:14:28,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:14:28,051 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:14:28,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:14:28,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:14:28,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:14:28,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:14:28,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:14:28,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:14:28,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:14:28,054 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:14:28,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4a7e0762948cbc310fcf63fb24dcbf7ee6356cb [2021-08-27 15:14:28,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:14:28,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:14:28,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:14:28,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:14:28,401 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:14:28,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_security.c [2021-08-27 15:14:28,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad34a56a/3a469c9255b948ae8d49621b111ad843/FLAGd1c8adbee [2021-08-27 15:14:28,878 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:14:28,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_security.c [2021-08-27 15:14:28,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad34a56a/3a469c9255b948ae8d49621b111ad843/FLAGd1c8adbee [2021-08-27 15:14:28,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad34a56a/3a469c9255b948ae8d49621b111ad843 [2021-08-27 15:14:28,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:14:28,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:14:28,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:14:28,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:14:28,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:14:28,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:14:28" (1/1) ... [2021-08-27 15:14:28,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181b7988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:28, skipping insertion in model container [2021-08-27 15:14:28,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:14:28" (1/1) ... [2021-08-27 15:14:28,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:14:28,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:14:29,132 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2021-08-27 15:14:29,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:14:29,154 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:14:29,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_security.c[12744,12757] [2021-08-27 15:14:29,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:14:29,230 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:14:29,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29 WrapperNode [2021-08-27 15:14:29,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:14:29,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:14:29,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:14:29,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:14:29,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:14:29,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:14:29,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:14:29,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:14:29,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:14:29,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:14:29,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:14:29,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:14:29,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (1/1) ... [2021-08-27 15:14:29,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:14:29,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:14:29,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:14:29,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:14:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:14:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:14:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:14:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:14:29,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:14:29,926 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-08-27 15:14:29,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:29 BoogieIcfgContainer [2021-08-27 15:14:29,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:14:29,929 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:14:29,930 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:14:29,933 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:14:29,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:29,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:14:28" (1/3) ... [2021-08-27 15:14:29,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64f9f401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:14:29, skipping insertion in model container [2021-08-27 15:14:29,935 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:29,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:29" (2/3) ... [2021-08-27 15:14:29,936 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64f9f401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:14:29, skipping insertion in model container [2021-08-27 15:14:29,936 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:29,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:29" (3/3) ... [2021-08-27 15:14:29,937 INFO L389 chiAutomizerObserver]: Analyzing ICFG psyco_security.c [2021-08-27 15:14:29,974 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:14:29,974 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:14:29,974 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:14:29,974 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:14:29,974 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:14:29,974 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:14:29,975 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:14:29,975 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:14:29,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.9210526315789473) internal successors, (146), 76 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:30,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2021-08-27 15:14:30,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:30,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:30,017 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:14:30,018 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:14:30,018 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:14:30,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.9210526315789473) internal successors, (146), 76 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:30,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2021-08-27 15:14:30,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:30,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:30,024 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:14:30,024 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:14:30,030 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_initSign~0 := 1;~m_initVerify~0 := 2;~m_Signature~0 := 3;~m_sign~0 := 4;~m_verify~0 := 5;~m_update~0 := 6; 48#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_~q~0, main_~method_id~0, main_~this_state~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_state~0 := 0; 5#L24-2true [2021-08-27 15:14:30,030 INFO L793 eck$LassoCheckResult]: Loop: 5#L24-2true goto; 62#L383true assume !false; 25#L29true assume !(0 == main_~q~0); 57#L49true assume !(1 == main_~q~0); 66#L101true assume !(2 == main_~q~0); 37#L185true assume !(3 == main_~q~0); 59#L285true assume !(4 == main_~q~0); 5#L24-2true [2021-08-27 15:14:30,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:30,035 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 15:14:30,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:30,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44961432] [2021-08-27 15:14:30,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:30,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,117 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:30,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1175019824, now seen corresponding path program 1 times [2021-08-27 15:14:30,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:30,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077493691] [2021-08-27 15:14:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:30,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,154 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,159 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:30,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:30,160 INFO L82 PathProgramCache]: Analyzing trace with hash 371277006, now seen corresponding path program 1 times [2021-08-27 15:14:30,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:30,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872688055] [2021-08-27 15:14:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:30,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:14:30,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:14:30,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:14:30,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872688055] [2021-08-27 15:14:30,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872688055] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:14:30,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:14:30,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:14:30,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768235320] [2021-08-27 15:14:30,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:14:30,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:14:30,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:14:30,290 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.9210526315789473) internal successors, (146), 76 states have internal predecessors, (146), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:30,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:14:30,345 INFO L93 Difference]: Finished difference Result 80 states and 122 transitions. [2021-08-27 15:14:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:14:30,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 122 transitions. [2021-08-27 15:14:30,350 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2021-08-27 15:14:30,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 59 states and 81 transitions. [2021-08-27 15:14:30,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-08-27 15:14:30,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-08-27 15:14:30,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-08-27 15:14:30,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:14:30,357 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 15:14:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-08-27 15:14:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-08-27 15:14:30,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-08-27 15:14:30,381 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 15:14:30,381 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-08-27 15:14:30,381 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:14:30,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-08-27 15:14:30,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2021-08-27 15:14:30,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:30,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:30,383 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 15:14:30,383 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-27 15:14:30,383 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_initSign~0 := 1;~m_initVerify~0 := 2;~m_Signature~0 := 3;~m_sign~0 := 4;~m_verify~0 := 5;~m_update~0 := 6; 217#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_~q~0, main_~method_id~0, main_~this_state~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_state~0 := 0; 171#L24-2 goto; 170#L383 [2021-08-27 15:14:30,383 INFO L793 eck$LassoCheckResult]: Loop: 170#L383 assume !false; 198#L29 assume 0 == main_~q~0; 168#L30 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7; 170#L383 [2021-08-27 15:14:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-08-27 15:14:30,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:30,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711225608] [2021-08-27 15:14:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:30,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:30,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:30,408 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-08-27 15:14:30,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:30,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354747420] [2021-08-27 15:14:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:30,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,412 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:30,416 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-08-27 15:14:30,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:30,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289491807] [2021-08-27 15:14:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:30,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,433 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:30,448 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:30,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:14:30 BoogieIcfgContainer [2021-08-27 15:14:30,989 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:14:30,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:14:30,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:14:30,990 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:14:30,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:29" (3/4) ... [2021-08-27 15:14:30,993 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:14:31,032 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:14:31,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:14:31,034 INFO L168 Benchmark]: Toolchain (without parser) took 2118.54 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 33.7 MB in the beginning and 33.4 MB in the end (delta: 264.0 kB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:31,034 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:14:31,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.44 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 48.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:31,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 47.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:31,036 INFO L168 Benchmark]: Boogie Preprocessor took 44.03 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 45.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:14:31,036 INFO L168 Benchmark]: RCFGBuilder took 600.19 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 35.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:31,041 INFO L168 Benchmark]: BuchiAutomizer took 1060.00 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 59.2 kB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:31,042 INFO L168 Benchmark]: Witness Printer took 42.69 ms. Allocated memory is still 81.8 MB. Free memory was 34.9 MB in the beginning and 33.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:14:31,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.44 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 48.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 47.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.03 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 45.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 600.19 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 35.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1060.00 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 59.2 kB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 42.69 ms. Allocated memory is still 81.8 MB. Free memory was 34.9 MB in the beginning and 33.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 12.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 118 SDtfs, 4 SDslu, 84 SDs, 0 SdLazy, 31 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 30.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 24]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1734} State at position 1 is {NULL=1736, NULL=0, m_sign=4, \result=0, NULL=1734, m_update=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75587c11=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@540780c5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45a6d3fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66125353=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@509c0374=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a94c01d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c7377f3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c29cf0c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25d4860c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3875b00a=0, NULL=1737, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bbfadd9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f43f736=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ff4c409=0, NULL=0, NULL=0, NULL=0, NULL=1735, m_verify=5, m_initSign=1, m_initVerify=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19fc2e83=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e870ea0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c14e5d3=0, NULL=0, this_state=0, q=0, m_Signature=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a527ff7=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6df1eabb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@158159b0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e5b7ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4814f07c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_initSign = 1; [L8] int m_initVerify = 2; [L9] int m_Signature = 3; [L10] int m_sign = 4; [L11] int m_verify = 5; [L12] int m_update = 6; [L17] int q = 0; [L18] int method_id; [L21] int this_state = 0; Loop: [L24] COND TRUE 1 [L29] COND TRUE q == 0 [L30] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:14:31,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...