./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_security.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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-dev-03d7b7b [2022-02-21 03:56:01,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:56:01,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:56:01,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:56:01,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:56:01,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:56:01,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:56:01,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:56:01,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:56:01,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:56:01,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:56:01,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:56:01,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:56:01,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:56:01,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:56:01,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:56:01,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:56:01,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:56:01,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:56:01,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:56:01,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:56:01,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:56:01,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:56:01,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:56:01,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:56:01,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:56:01,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:56:01,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:56:01,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:56:01,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:56:01,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:56:01,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:56:01,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:56:01,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:56:01,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:56:01,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:56:01,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:56:01,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:56:01,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:56:01,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:56:01,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:56:01,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 03:56:01,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:56:01,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:56:01,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:56:01,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:56:01,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:56:01,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:56:01,498 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:56:01,499 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:56:01,499 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:56:01,499 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:56:01,500 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:56:01,500 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:56:01,500 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:56:01,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:56:01,500 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:56:01,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:56:01,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:56:01,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:56:01,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:56:01,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:56:01,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:56:01,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:56:01,502 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:56:01,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:56:01,502 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:56:01,502 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:56:01,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:56:01,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:56:01,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:56:01,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:56:01,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:56:01,504 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:56:01,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03d27deb00d6c25e1f99c43455f6da27475e88a721be2a7236bfffedf5da1e8 [2022-02-21 03:56:01,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:56:01,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:56:01,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:56:01,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:56:01,747 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:56:01,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_security.c [2022-02-21 03:56:01,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877b7c41b/bfe48da1b7b742b7b85be68e4bc6a268/FLAG66e3d5ed8 [2022-02-21 03:56:02,223 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:56:02,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_security.c [2022-02-21 03:56:02,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877b7c41b/bfe48da1b7b742b7b85be68e4bc6a268/FLAG66e3d5ed8 [2022-02-21 03:56:02,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877b7c41b/bfe48da1b7b742b7b85be68e4bc6a268 [2022-02-21 03:56:02,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:56:02,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:56:02,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:56:02,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:56:02,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:56:02,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a71c7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02, skipping insertion in model container [2022-02-21 03:56:02,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:56:02,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:56:02,463 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] [2022-02-21 03:56:02,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:56:02,480 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:56:02,508 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] [2022-02-21 03:56:02,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:56:02,527 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:56:02,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02 WrapperNode [2022-02-21 03:56:02,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:56:02,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:56:02,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:56:02,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:56:02,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,588 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 248 [2022-02-21 03:56:02,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:56:02,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:56:02,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:56:02,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:56:02,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:56:02,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:56:02,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:56:02,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:56:02,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (1/1) ... [2022-02-21 03:56:02,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:56:02,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:56:02,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 03:56:02,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 03:56:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:56:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:56:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:56:02,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:56:02,805 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:56:02,806 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:56:03,079 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:56:03,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:56:03,100 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-02-21 03:56:03,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:56:03 BoogieIcfgContainer [2022-02-21 03:56:03,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:56:03,102 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:56:03,102 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:56:03,109 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:56:03,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:56:03,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:56:02" (1/3) ... [2022-02-21 03:56:03,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dd01d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:56:03, skipping insertion in model container [2022-02-21 03:56:03,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:56:03,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:56:02" (2/3) ... [2022-02-21 03:56:03,112 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6dd01d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:56:03, skipping insertion in model container [2022-02-21 03:56:03,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:56:03,113 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:56:03" (3/3) ... [2022-02-21 03:56:03,114 INFO L388 chiAutomizerObserver]: Analyzing ICFG psyco_security.c [2022-02-21 03:56:03,163 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:56:03,163 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:56:03,163 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:56:03,163 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:56:03,163 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:56:03,164 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:56:03,164 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:56:03,164 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:56:03,185 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) [2022-02-21 03:56:03,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2022-02-21 03:56:03,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:56:03,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:56:03,247 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:56:03,247 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 03:56:03,247 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:56:03,251 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) [2022-02-21 03:56:03,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 62 [2022-02-21 03:56:03,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:56:03,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:56:03,275 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:56:03,275 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 03:56:03,281 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 [2022-02-21 03:56:03,282 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 [2022-02-21 03:56:03,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:56:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 03:56:03,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:56:03,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683123623] [2022-02-21 03:56:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:56:03,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:56:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:03,393 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:56:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:03,435 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:56:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:56:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1175019824, now seen corresponding path program 1 times [2022-02-21 03:56:03,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:56:03,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440885510] [2022-02-21 03:56:03,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:56:03,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:56:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:03,457 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:56:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:03,467 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:56:03,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:56:03,469 INFO L85 PathProgramCache]: Analyzing trace with hash 371277006, now seen corresponding path program 1 times [2022-02-21 03:56:03,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:56:03,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758408655] [2022-02-21 03:56:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:56:03,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:56:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:56:03,568 INFO L290 TraceCheckUtils]: 0: Hoare triple {85#true} 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; {85#true} is VALID [2022-02-21 03:56:03,569 INFO L290 TraceCheckUtils]: 1: Hoare triple {85#true} 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; {87#(= |ULTIMATE.start_main_~q~0#1| 0)} is VALID [2022-02-21 03:56:03,569 INFO L290 TraceCheckUtils]: 2: Hoare triple {87#(= |ULTIMATE.start_main_~q~0#1| 0)} goto; {87#(= |ULTIMATE.start_main_~q~0#1| 0)} is VALID [2022-02-21 03:56:03,570 INFO L290 TraceCheckUtils]: 3: Hoare triple {87#(= |ULTIMATE.start_main_~q~0#1| 0)} assume !false; {87#(= |ULTIMATE.start_main_~q~0#1| 0)} is VALID [2022-02-21 03:56:03,571 INFO L290 TraceCheckUtils]: 4: Hoare triple {87#(= |ULTIMATE.start_main_~q~0#1| 0)} assume !(0 == main_~q~0#1); {86#false} is VALID [2022-02-21 03:56:03,571 INFO L290 TraceCheckUtils]: 5: Hoare triple {86#false} assume !(1 == main_~q~0#1); {86#false} is VALID [2022-02-21 03:56:03,571 INFO L290 TraceCheckUtils]: 6: Hoare triple {86#false} assume !(2 == main_~q~0#1); {86#false} is VALID [2022-02-21 03:56:03,572 INFO L290 TraceCheckUtils]: 7: Hoare triple {86#false} assume !(3 == main_~q~0#1); {86#false} is VALID [2022-02-21 03:56:03,572 INFO L290 TraceCheckUtils]: 8: Hoare triple {86#false} assume !(4 == main_~q~0#1); {86#false} is VALID [2022-02-21 03:56:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:56:03,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 03:56:03,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758408655] [2022-02-21 03:56:03,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758408655] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 03:56:03,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 03:56:03,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 03:56:03,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787323568] [2022-02-21 03:56:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 03:56:03,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 03:56:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 03:56:03,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 03:56:03,683 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) [2022-02-21 03:56:03,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:56:03,910 INFO L93 Difference]: Finished difference Result 80 states and 122 transitions. [2022-02-21 03:56:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 03:56:03,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 03:56:03,922 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:56:03,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 122 transitions. [2022-02-21 03:56:03,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2022-02-21 03:56:03,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 59 states and 81 transitions. [2022-02-21 03:56:03,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2022-02-21 03:56:03,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-02-21 03:56:03,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2022-02-21 03:56:03,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:56:03,943 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2022-02-21 03:56:03,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2022-02-21 03:56:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-02-21 03:56:03,970 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 03:56:03,973 INFO L82 GeneralOperation]: Start isEquivalent. First operand 59 states and 81 transitions. Second 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) [2022-02-21 03:56:03,975 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states and 81 transitions. Second 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) [2022-02-21 03:56:03,977 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second 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) [2022-02-21 03:56:03,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:56:03,983 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2022-02-21 03:56:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2022-02-21 03:56:03,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:56:03,985 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:56:03,986 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 59 states and 81 transitions. [2022-02-21 03:56:03,986 INFO L87 Difference]: Start difference. First 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) Second operand 59 states and 81 transitions. [2022-02-21 03:56:03,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 03:56:03,989 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2022-02-21 03:56:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2022-02-21 03:56:03,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 03:56:03,990 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 03:56:03,990 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 03:56:03,990 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 03:56:03,994 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) [2022-02-21 03:56:03,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2022-02-21 03:56:03,998 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2022-02-21 03:56:03,998 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2022-02-21 03:56:03,998 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:56:03,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2022-02-21 03:56:04,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 56 [2022-02-21 03:56:04,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:56:04,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:56:04,003 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-02-21 03:56:04,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:56:04,004 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 [2022-02-21 03:56:04,004 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 [2022-02-21 03:56:04,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:56:04,005 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-02-21 03:56:04,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:56:04,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635684365] [2022-02-21 03:56:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:56:04,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:56:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:04,021 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:56:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:04,038 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:56:04,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:56:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-02-21 03:56:04,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:56:04,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146888006] [2022-02-21 03:56:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:56:04,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:56:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:04,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:56:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:04,050 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:56:04,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:56:04,051 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-02-21 03:56:04,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:56:04,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485186315] [2022-02-21 03:56:04,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:56:04,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:56:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:04,068 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:56:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:56:04,081 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:56:04,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:56:04 BoogieIcfgContainer [2022-02-21 03:56:04,294 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:56:04,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:56:04,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:56:04,295 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:56:04,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:56:03" (3/4) ... [2022-02-21 03:56:04,299 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 03:56:04,334 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 03:56:04,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:56:04,335 INFO L158 Benchmark]: Toolchain (without parser) took 2090.23ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 54.8MB in the beginning and 55.5MB in the end (delta: -665.4kB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-02-21 03:56:04,336 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 59.6MB in the end (delta: 24.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:56:04,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.20ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 54.7MB in the beginning and 87.2MB in the end (delta: -32.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:56:04,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.49ms. Allocated memory is still 113.2MB. Free memory was 87.2MB in the beginning and 84.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 03:56:04,337 INFO L158 Benchmark]: Boogie Preprocessor took 57.68ms. Allocated memory is still 113.2MB. Free memory was 84.7MB in the beginning and 83.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:56:04,338 INFO L158 Benchmark]: RCFGBuilder took 445.78ms. Allocated memory is still 113.2MB. Free memory was 83.3MB in the beginning and 67.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-21 03:56:04,338 INFO L158 Benchmark]: BuchiAutomizer took 1192.19ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 56.8MB in the end (delta: 10.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-02-21 03:56:04,339 INFO L158 Benchmark]: Witness Printer took 39.40ms. Allocated memory is still 113.2MB. Free memory was 56.8MB in the beginning and 55.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:56:04,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 59.7MB in the beginning and 59.6MB in the end (delta: 24.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.20ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 54.7MB in the beginning and 87.2MB in the end (delta: -32.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.49ms. Allocated memory is still 113.2MB. Free memory was 87.2MB in the beginning and 84.7MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.68ms. Allocated memory is still 113.2MB. Free memory was 84.7MB in the beginning and 83.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 445.78ms. Allocated memory is still 113.2MB. Free memory was 83.3MB in the beginning and 67.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1192.19ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 56.8MB in the end (delta: 10.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Witness Printer took 39.40ms. Allocated memory is still 113.2MB. Free memory was 56.8MB in the beginning and 55.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. 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 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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@79891d85=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b12940e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a63dc76=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59526c41=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e819705=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@548d6e86=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58c95b24=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40f7b10a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@298fe55c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e1f171b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45125aae=0, q=0, \result=0, m_verify=5, m_initSign=1, m_initVerify=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@165dd711=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@291b7202=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@468f1f48=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@402e6f4d=0, m_Signature=3, this_state=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bff11ba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2730f96f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c2ab24e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ed350ab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17d04d36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24371c86=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! [2022-02-21 03:56:04,374 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)