./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f21f1881350863de740f7b7321104b53617dd8ce .............................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 03:57:07,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:57:07,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:57:07,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:57:07,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:57:07,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:57:07,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:57:07,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:57:07,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:57:07,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:57:07,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:57:07,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:57:07,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:57:07,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:57:07,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:57:07,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:57:07,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:57:07,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:57:07,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:57:07,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:57:07,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:57:07,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:57:07,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:57:07,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:57:07,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:57:07,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:57:07,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:57:07,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:57:07,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:57:07,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:57:07,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:57:07,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:57:07,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:57:07,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:57:07,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:57:07,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:57:07,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:57:07,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:57:07,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:57:07,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:57:07,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:57:07,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-10-26 03:57:07,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:57:07,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:57:07,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:57:07,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:57:07,630 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:57:07,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:57:07,631 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:57:07,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:57:07,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:57:07,632 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:57:07,632 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:57:07,632 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:57:07,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:57:07,633 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:57:07,633 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:57:07,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:57:07,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:57:07,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:57:07,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:57:07,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:57:07,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:57:07,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:57:07,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:57:07,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:57:07,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:57:07,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f21f1881350863de740f7b7321104b53617dd8ce [2020-10-26 03:57:08,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:57:08,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:57:08,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:57:08,069 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:57:08,069 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:57:08,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-1.c [2020-10-26 03:57:08,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbe357d03/244461bfb8cb40f7beb78202a7b4b1b2/FLAG6a4658b3f [2020-10-26 03:57:08,862 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:57:08,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/RecursiveNonterminating-1.c [2020-10-26 03:57:08,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbe357d03/244461bfb8cb40f7beb78202a7b4b1b2/FLAG6a4658b3f [2020-10-26 03:57:09,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbe357d03/244461bfb8cb40f7beb78202a7b4b1b2 [2020-10-26 03:57:09,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:57:09,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:57:09,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:57:09,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:57:09,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:57:09,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218970e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09, skipping insertion in model container [2020-10-26 03:57:09,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:57:09,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:57:09,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:09,465 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:57:09,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:09,494 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:57:09,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09 WrapperNode [2020-10-26 03:57:09,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:57:09,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:57:09,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:57:09,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:57:09,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... [2020-10-26 03:57:09,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:57:09,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:57:09,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:57:09,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:57:09,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:57:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:57:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:57:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2020-10-26 03:57:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:57:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:57:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2020-10-26 03:57:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:57:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:57:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:57:09,793 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:57:09,794 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-26 03:57:09,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:09 BoogieIcfgContainer [2020-10-26 03:57:09,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:57:09,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:57:09,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:57:09,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:57:09,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:57:09" (1/3) ... [2020-10-26 03:57:09,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f02717e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:09, skipping insertion in model container [2020-10-26 03:57:09,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:09" (2/3) ... [2020-10-26 03:57:09,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f02717e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:09, skipping insertion in model container [2020-10-26 03:57:09,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:09" (3/3) ... [2020-10-26 03:57:09,807 INFO L111 eAbstractionObserver]: Analyzing ICFG RecursiveNonterminating-1.c [2020-10-26 03:57:09,821 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:57:09,827 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 03:57:09,843 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 03:57:09,869 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:57:09,869 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:57:09,870 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:57:09,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:57:09,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:57:09,870 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:57:09,871 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:57:09,871 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:57:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-10-26 03:57:09,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 03:57:09,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:57:09 BoogieIcfgContainer [2020-10-26 03:57:09,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:57:09,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:57:09,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:57:09,901 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:57:09,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:09" (3/4) ... [2020-10-26 03:57:09,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 03:57:09,920 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec [2020-10-26 03:57:09,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-26 03:57:09,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-26 03:57:09,926 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-26 03:57:09,927 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 03:57:09,927 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 03:57:09,971 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:57:09,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:57:09,975 INFO L168 Benchmark]: Toolchain (without parser) took 740.35 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 17.0 MB in the beginning and 32.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:09,976 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 39.8 MB. Free memory was 24.6 MB in the beginning and 24.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:57:09,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.84 ms. Allocated memory is still 39.8 MB. Free memory was 16.2 MB in the beginning and 17.1 MB in the end (delta: -849.3 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:09,978 INFO L168 Benchmark]: Boogie Preprocessor took 26.24 ms. Allocated memory is still 39.8 MB. Free memory was 17.1 MB in the beginning and 15.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:09,980 INFO L168 Benchmark]: RCFGBuilder took 273.42 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.9 MB in the beginning and 28.0 MB in the end (delta: -12.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:09,981 INFO L168 Benchmark]: TraceAbstraction took 101.89 ms. Allocated memory is still 50.3 MB. Free memory was 27.6 MB in the beginning and 23.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:09,982 INFO L168 Benchmark]: Witness Printer took 71.07 ms. Allocated memory is still 50.3 MB. Free memory was 23.0 MB in the beginning and 32.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:09,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 39.8 MB. Free memory was 24.6 MB in the beginning and 24.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.84 ms. Allocated memory is still 39.8 MB. Free memory was 16.2 MB in the beginning and 17.1 MB in the end (delta: -849.3 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.24 ms. Allocated memory is still 39.8 MB. Free memory was 17.1 MB in the beginning and 15.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 273.42 ms. Allocated memory was 39.8 MB in the beginning and 50.3 MB in the end (delta: 10.5 MB). Free memory was 15.9 MB in the beginning and 28.0 MB in the end (delta: -12.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 101.89 ms. Allocated memory is still 50.3 MB. Free memory was 27.6 MB in the beginning and 23.0 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 71.07 ms. Allocated memory is still 50.3 MB. Free memory was 23.0 MB in the beginning and 32.4 MB in the end (delta: -9.4 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...