./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.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/ntdrivers-simplified/kbfiltr_simpl1.cil.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 db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:37:43,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:37:43,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:37:43,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:37:43,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:37:43,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:37:43,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:37:43,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:37:43,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:37:43,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:37:43,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:37:43,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:37:43,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:37:43,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:37:43,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:37:43,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:37:43,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:37:43,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:37:43,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:37:43,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:37:43,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:37:43,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:37:43,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:37:43,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:37:43,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:37:43,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:37:43,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:37:43,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:37:43,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:37:43,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:37:43,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:37:43,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:37:43,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:37:43,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:37:43,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:37:43,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:37:43,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:37:43,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:37:43,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:37:43,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:37:43,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:37:43,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 03:37:43,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:37:43,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:37:43,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:37:43,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:37:43,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:37:43,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:37:43,422 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:37:43,423 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:37:43,423 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:37:43,423 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:37:43,424 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:37:43,424 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:37:43,424 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:37:43,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:37:43,425 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 03:37:43,425 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:37:43,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:37:43,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 03:37:43,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:37:43,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:37:43,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:37:43,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:37:43,426 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 03:37:43,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:37:43,428 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:37:43,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:37:43,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:37:43,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:37:43,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:37:43,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:37:43,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:37:43,430 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:37:43,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1e722f73dbd7795cdbaca4c816f6c8a0f90138145d9f90bf0f222b7dd371eb [2022-02-21 03:37:43,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:37:43,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:37:43,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:37:43,693 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:37:43,695 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:37:43,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2022-02-21 03:37:43,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5620f590/9442b0a71e6c409480d2f1e8ace6dc9f/FLAG4478908b8 [2022-02-21 03:37:44,199 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:37:44,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2022-02-21 03:37:44,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5620f590/9442b0a71e6c409480d2f1e8ace6dc9f/FLAG4478908b8 [2022-02-21 03:37:44,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5620f590/9442b0a71e6c409480d2f1e8ace6dc9f [2022-02-21 03:37:44,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:37:44,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:37:44,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:37:44,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:37:44,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:37:44,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a1b3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44, skipping insertion in model container [2022-02-21 03:37:44,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:37:44,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:37:44,445 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/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2022-02-21 03:37:44,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:37:44,479 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:37:44,544 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/ntdrivers-simplified/kbfiltr_simpl1.cil.c[17080,17093] [2022-02-21 03:37:44,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:37:44,558 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:37:44,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44 WrapperNode [2022-02-21 03:37:44,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:37:44,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:37:44,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:37:44,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:37:44,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,627 INFO L137 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 24, calls inlined = 39, statements flattened = 674 [2022-02-21 03:37:44,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:37:44,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:37:44,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:37:44,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:37:44,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:37:44,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:37:44,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:37:44,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:37:44,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (1/1) ... [2022-02-21 03:37:44,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:37:44,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:37:44,711 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 03:37:44,714 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 03:37:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 03:37:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 03:37:44,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:37:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:37:44,826 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:37:44,827 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:37:44,834 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-21 03:37:44,839 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-21 03:37:44,842 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-21 03:37:44,846 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-21 03:37:44,851 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-21 03:37:44,856 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-21 03:37:44,860 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-21 03:37:45,363 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##184: assume false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##185: assume !false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2022-02-21 03:37:45,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2022-02-21 03:37:45,365 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2022-02-21 03:37:45,365 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2022-02-21 03:37:45,365 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2022-02-21 03:37:45,365 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2022-02-21 03:37:45,365 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2022-02-21 03:37:45,365 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:37:45,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:37:45,378 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-21 03:37:45,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:37:45 BoogieIcfgContainer [2022-02-21 03:37:45,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:37:45,382 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:37:45,382 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:37:45,385 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:37:45,386 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:37:45,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:37:44" (1/3) ... [2022-02-21 03:37:45,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69419ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:37:45, skipping insertion in model container [2022-02-21 03:37:45,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:37:45,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:37:44" (2/3) ... [2022-02-21 03:37:45,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69419ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:37:45, skipping insertion in model container [2022-02-21 03:37:45,388 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:37:45,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:37:45" (3/3) ... [2022-02-21 03:37:45,390 INFO L388 chiAutomizerObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2022-02-21 03:37:45,450 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:37:45,450 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:37:45,451 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:37:45,451 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:37:45,452 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:37:45,452 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:37:45,452 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:37:45,452 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:37:45,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 180 states, 179 states have (on average 1.4804469273743017) internal successors, (265), 179 states have internal predecessors, (265), 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 03:37:45,563 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:37:45,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:37:45,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:37:45 BoogieIcfgContainer [2022-02-21 03:37:45,568 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:37:45,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:37:45,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:37:45,569 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:37:45,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:37:45" (3/4) ... [2022-02-21 03:37:45,572 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:37:45,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:37:45,574 INFO L158 Benchmark]: Toolchain (without parser) took 1346.07ms. Allocated memory is still 100.7MB. Free memory was 61.5MB in the beginning and 74.1MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:37:45,575 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:37:45,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.97ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 75.9MB in the end (delta: -14.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-02-21 03:37:45,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.06ms. Allocated memory is still 100.7MB. Free memory was 75.9MB in the beginning and 71.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 03:37:45,577 INFO L158 Benchmark]: Boogie Preprocessor took 50.39ms. Allocated memory is still 100.7MB. Free memory was 71.8MB in the beginning and 69.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:37:45,577 INFO L158 Benchmark]: RCFGBuilder took 701.58ms. Allocated memory is still 100.7MB. Free memory was 69.3MB in the beginning and 39.5MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-02-21 03:37:45,578 INFO L158 Benchmark]: BuchiAutomizer took 186.17ms. Allocated memory is still 100.7MB. Free memory was 39.0MB in the beginning and 74.1MB in the end (delta: -35.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-02-21 03:37:45,578 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 100.7MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:37:45,581 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 0.13ms. Allocated memory is still 100.7MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.97ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 75.9MB in the end (delta: -14.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.06ms. Allocated memory is still 100.7MB. Free memory was 75.9MB in the beginning and 71.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.39ms. Allocated memory is still 100.7MB. Free memory was 71.8MB in the beginning and 69.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 701.58ms. Allocated memory is still 100.7MB. Free memory was 69.3MB in the beginning and 39.5MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 186.17ms. Allocated memory is still 100.7MB. Free memory was 39.0MB in the beginning and 74.1MB in the end (delta: -35.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 100.7MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.1s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:37:45,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE