./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 839c364b 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 c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:23:33,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:23:33,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:23:33,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:23:33,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:23:33,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:23:33,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:23:33,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:23:33,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:23:33,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:23:33,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:23:33,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:23:33,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:23:33,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:23:33,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:23:33,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:23:33,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:23:33,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:23:33,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:23:33,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:23:33,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:23:33,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:23:33,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:23:33,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:23:33,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:23:33,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:23:33,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:23:33,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:23:33,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:23:33,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:23:33,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:23:33,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:23:33,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:23:33,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:23:33,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:23:33,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:23:33,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:23:33,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:23:33,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:23:33,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:23:33,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:23:33,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:23:33,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:23:33,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:23:33,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:23:33,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:23:33,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:23:33,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:23:33,356 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:23:33,356 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:23:33,356 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:23:33,356 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:23:33,356 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:23:33,357 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:23:33,357 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:23:33,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:23:33,357 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:23:33,357 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:23:33,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:23:33,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:23:33,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:23:33,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:23:33,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:23:33,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:23:33,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:23:33,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:23:33,358 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:23:33,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:23:33,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:23:33,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:23:33,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:23:33,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:23:33,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:23:33,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:23:33,360 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:23:33,360 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 [2021-12-14 23:23:33,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:23:33,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:23:33,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:23:33,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:23:33,564 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:23:33,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_security.c [2021-12-14 23:23:33,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c2fb220/1938d4b9a76b42e99f6b2804b44be5e7/FLAGda1d92252 [2021-12-14 23:23:33,992 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:23:33,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_security.c [2021-12-14 23:23:34,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c2fb220/1938d4b9a76b42e99f6b2804b44be5e7/FLAGda1d92252 [2021-12-14 23:23:34,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c2fb220/1938d4b9a76b42e99f6b2804b44be5e7 [2021-12-14 23:23:34,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:23:34,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:23:34,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:23:34,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:23:34,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:23:34,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562e150b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34, skipping insertion in model container [2021-12-14 23:23:34,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:23:34,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:23:34,200 WARN L230 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] [2021-12-14 23:23:34,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:23:34,219 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:23:34,251 WARN L230 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] [2021-12-14 23:23:34,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:23:34,261 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:23:34,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34 WrapperNode [2021-12-14 23:23:34,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:23:34,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:23:34,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:23:34,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:23:34,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,309 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 248 [2021-12-14 23:23:34,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:23:34,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:23:34,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:23:34,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:23:34,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:23:34,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:23:34,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:23:34,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:23:34,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (1/1) ... [2021-12-14 23:23:34,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:23:34,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:23:34,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-14 23:23:34,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-14 23:23:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:23:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:23:34,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:23:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:23:34,466 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:23:34,467 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:23:34,672 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:23:34,677 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:23:34,677 INFO L301 CfgBuilder]: Removed 18 assume(true) statements. [2021-12-14 23:23:34,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:34 BoogieIcfgContainer [2021-12-14 23:23:34,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:23:34,679 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:23:34,679 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:23:34,681 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:23:34,682 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:23:34,682 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:23:34" (1/3) ... [2021-12-14 23:23:34,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7eab7212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:23:34, skipping insertion in model container [2021-12-14 23:23:34,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:23:34,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:34" (2/3) ... [2021-12-14 23:23:34,688 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7eab7212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:23:34, skipping insertion in model container [2021-12-14 23:23:34,688 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:23:34,688 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:34" (3/3) ... [2021-12-14 23:23:34,689 INFO L388 chiAutomizerObserver]: Analyzing ICFG psyco_security.c [2021-12-14 23:23:34,721 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:23:34,721 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:23:34,722 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:23:34,722 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:23:34,722 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:23:34,722 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:23:34,722 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:23:34,722 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:23:34,734 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) [2021-12-14 23:23:34,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2021-12-14 23:23:34,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:23:34,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:23:34,753 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:23:34,753 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:23:34,753 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:23:34,755 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) [2021-12-14 23:23:34,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2021-12-14 23:23:34,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:23:34,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:23:34,771 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-14 23:23:34,771 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:23:34,776 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~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 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_~q~0#1, main_~method_id~0#1, main_~this_state~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_state~0#1 := 0; 5#L24-2true [2021-12-14 23:23:34,776 INFO L793 eck$LassoCheckResult]: Loop: 5#L24-2true goto; 62#L383true assume !false; 25#L29true assume !(0 == main_~q~0#1); 57#L49true assume !(1 == main_~q~0#1); 66#L101true assume !(2 == main_~q~0#1); 37#L185true assume !(3 == main_~q~0#1); 59#L285true assume !(4 == main_~q~0#1); 5#L24-2true [2021-12-14 23:23:34,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:34,786 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-14 23:23:34,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:34,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564528330] [2021-12-14 23:23:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:34,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:34,867 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:34,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:34,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:34,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1175019824, now seen corresponding path program 1 times [2021-12-14 23:23:34,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:34,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630683919] [2021-12-14 23:23:34,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:34,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:34,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:34,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:34,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:34,925 INFO L85 PathProgramCache]: Analyzing trace with hash 371277006, now seen corresponding path program 1 times [2021-12-14 23:23:34,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:34,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236135834] [2021-12-14 23:23:34,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:34,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:23:34,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:23:34,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:23:34,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236135834] [2021-12-14 23:23:34,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236135834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:23:34,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:23:34,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:23:34,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037426637] [2021-12-14 23:23:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:23:35,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:23:35,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:23:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:23:35,096 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) [2021-12-14 23:23:35,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:23:35,161 INFO L93 Difference]: Finished difference Result 80 states and 122 transitions. [2021-12-14 23:23:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:23:35,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 122 transitions. [2021-12-14 23:23:35,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2021-12-14 23:23:35,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 59 states and 81 transitions. [2021-12-14 23:23:35,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-12-14 23:23:35,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-12-14 23:23:35,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-12-14 23:23:35,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:23:35,180 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-12-14 23:23:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-12-14 23:23:35,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-12-14 23:23:35,200 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) [2021-12-14 23:23:35,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-12-14 23:23:35,204 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-12-14 23:23:35,205 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-12-14 23:23:35,205 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:23:35,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-12-14 23:23:35,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2021-12-14 23:23:35,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:23:35,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:23:35,210 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-14 23:23:35,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-14 23:23:35,211 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~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 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_~q~0#1, main_~method_id~0#1, main_~this_state~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_state~0#1 := 0; 171#L24-2 goto; 170#L383 [2021-12-14 23:23:35,211 INFO L793 eck$LassoCheckResult]: Loop: 170#L383 assume !false; 198#L29 assume 0 == main_~q~0#1; 168#L30 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1; 170#L383 [2021-12-14 23:23:35,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:35,211 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-12-14 23:23:35,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:35,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142828478] [2021-12-14 23:23:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:35,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:35,220 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:35,235 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:35,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:35,237 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2021-12-14 23:23:35,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:35,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417911420] [2021-12-14 23:23:35,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:35,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:35,243 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:35,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:35,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:23:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2021-12-14 23:23:35,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:23:35,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545457555] [2021-12-14 23:23:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:23:35,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:23:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:35,260 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:23:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:23:35,270 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:23:35,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:23:35 BoogieIcfgContainer [2021-12-14 23:23:35,438 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:23:35,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:23:35,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:23:35,441 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:23:35,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:34" (3/4) ... [2021-12-14 23:23:35,451 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:23:35,485 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:23:35,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:23:35,488 INFO L158 Benchmark]: Toolchain (without parser) took 1457.31ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 57.4MB in the beginning and 117.7MB in the end (delta: -60.3MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2021-12-14 23:23:35,490 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 98.6MB. Free memory was 74.4MB in the beginning and 74.3MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:23:35,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.72ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 57.2MB in the beginning and 115.9MB in the end (delta: -58.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-12-14 23:23:35,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.08ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 113.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:23:35,491 INFO L158 Benchmark]: Boogie Preprocessor took 41.10ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 112.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:23:35,491 INFO L158 Benchmark]: RCFGBuilder took 324.51ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 113.7MB in the end (delta: -1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-14 23:23:35,494 INFO L158 Benchmark]: BuchiAutomizer took 759.73ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 70.9MB in the end (delta: 42.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-12-14 23:23:35,494 INFO L158 Benchmark]: Witness Printer took 48.13ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 117.7MB in the end (delta: -46.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-12-14 23:23:35,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 98.6MB. Free memory was 74.4MB in the beginning and 74.3MB in the end (delta: 47.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.72ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 57.2MB in the beginning and 115.9MB in the end (delta: -58.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.08ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 113.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.10ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 112.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.51ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 113.7MB in the end (delta: -1.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 759.73ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 70.9MB in the end (delta: 42.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 48.13ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 117.7MB in the end (delta: -46.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (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 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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 0.0s 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: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 202 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 118 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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=1} State at position 1 is {NULL=0, m_sign=4, NULL=1, m_update=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e850894=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4faa353c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66a344a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1beec481=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@317a169e=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69e3542a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53c866b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6320cff5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c596d33=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4225f859=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b0ab711=0, q=0, \result=0, m_verify=5, m_initSign=1, m_initVerify=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@227097ad=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51c1c5cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@88d98a3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65875edb=0, m_Signature=3, this_state=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e9664cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b11c9e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ca8c93c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@131892c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@356d07d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a43e626=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! [2021-12-14 23:23:35,522 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)