./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e365d1f7c546788b4f6c8f402c5031aacc4ea6e6 .............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:56:05,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:56:05,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:56:05,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:56:05,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:56:05,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:56:05,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:56:05,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:56:05,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:56:05,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:56:05,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:56:05,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:56:05,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:56:05,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:56:05,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:56:05,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:56:05,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:56:05,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:56:05,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:56:05,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:56:05,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:56:05,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:56:05,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:56:05,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:56:05,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:56:05,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:56:05,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:56:05,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:56:05,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:56:05,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:56:05,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:56:05,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:56:05,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:56:05,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:56:05,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:56:05,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:56:05,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:56:05,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:56:05,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:56:05,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:56:05,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:56:05,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:56:06,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:56:06,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:56:06,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:56:06,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:56:06,035 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:56:06,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:56:06,036 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:56:06,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:56:06,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:56:06,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:56:06,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:56:06,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:56:06,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:56:06,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:56:06,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:56:06,038 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:56:06,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:56:06,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:56:06,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:56:06,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:56:06,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:56:06,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:56:06,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:56:06,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:56:06,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:56:06,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:56:06,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:56:06,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:56:06,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:56:06,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 ! call(reach_error())) ) 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 -> e365d1f7c546788b4f6c8f402c5031aacc4ea6e6 [2020-10-20 00:56:06,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:56:06,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:56:06,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:56:06,339 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:56:06,340 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:56:06,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2020-10-20 00:56:06,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10e777366/1376e5f8ce654112a5f3d6d6da050a09/FLAG4700be002 [2020-10-20 00:56:06,882 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:56:06,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/verisec_NetBSD-libc_loop.i [2020-10-20 00:56:06,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10e777366/1376e5f8ce654112a5f3d6d6da050a09/FLAG4700be002 [2020-10-20 00:56:07,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10e777366/1376e5f8ce654112a5f3d6d6da050a09 [2020-10-20 00:56:07,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:56:07,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:56:07,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:56:07,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:56:07,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:56:07,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b073aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07, skipping insertion in model container [2020-10-20 00:56:07,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:56:07,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:56:07,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:56:07,615 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:56:07,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:56:07,646 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:56:07,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07 WrapperNode [2020-10-20 00:56:07,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:56:07,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:56:07,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:56:07,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:56:07,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:56:07,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:56:07,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:56:07,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:56:07,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (1/1) ... [2020-10-20 00:56:07,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:56:07,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:56:07,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:56:07,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:56:07,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (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 [2020-10-20 00:56:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:56:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:56:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:56:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:56:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:56:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:56:07,999 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:56:08,000 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-20 00:56:08,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:56:08 BoogieIcfgContainer [2020-10-20 00:56:08,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:56:08,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:56:08,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:56:08,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:56:08,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:56:07" (1/3) ... [2020-10-20 00:56:08,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f5cb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:56:08, skipping insertion in model container [2020-10-20 00:56:08,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:56:07" (2/3) ... [2020-10-20 00:56:08,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f5cb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:56:08, skipping insertion in model container [2020-10-20 00:56:08,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:56:08" (3/3) ... [2020-10-20 00:56:08,010 INFO L111 eAbstractionObserver]: Analyzing ICFG verisec_NetBSD-libc_loop.i [2020-10-20 00:56:08,022 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:56:08,030 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:56:08,045 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:56:08,082 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:56:08,082 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:56:08,082 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:56:08,082 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:56:08,083 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:56:08,083 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:56:08,083 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:56:08,084 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:56:08,105 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-20 00:56:08,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 00:56:08,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:56:08,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:56:08,114 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:56:08,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:56:08,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1809706186, now seen corresponding path program 1 times [2020-10-20 00:56:08,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:56:08,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228556710] [2020-10-20 00:56:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:56:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:56:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:56:08,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228556710] [2020-10-20 00:56:08,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:56:08,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 00:56:08,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158716987] [2020-10-20 00:56:08,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 00:56:08,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:56:08,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 00:56:08,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 00:56:08,427 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-10-20 00:56:08,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:56:08,508 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2020-10-20 00:56:08,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:56:08,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 00:56:08,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:56:08,519 INFO L225 Difference]: With dead ends: 38 [2020-10-20 00:56:08,519 INFO L226 Difference]: Without dead ends: 14 [2020-10-20 00:56:08,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 00:56:08,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-20 00:56:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2020-10-20 00:56:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 00:56:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-10-20 00:56:08,558 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2020-10-20 00:56:08,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:56:08,559 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-10-20 00:56:08,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 00:56:08,559 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-10-20 00:56:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:56:08,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:56:08,560 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:56:08,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:56:08,560 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:56:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:56:08,561 INFO L82 PathProgramCache]: Analyzing trace with hash 2069720216, now seen corresponding path program 1 times [2020-10-20 00:56:08,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:56:08,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040844002] [2020-10-20 00:56:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:56:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:56:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:56:08,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040844002] [2020-10-20 00:56:08,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292745496] [2020-10-20 00:56:08,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 00:56:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:56:08,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-20 00:56:08,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:56:08,839 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:56:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:56:08,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 00:56:08,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-20 00:56:08,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977734385] [2020-10-20 00:56:08,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 00:56:08,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:56:08,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 00:56:08,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:56:08,881 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 7 states. [2020-10-20 00:56:08,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:56:08,947 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-10-20 00:56:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 00:56:08,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-20 00:56:08,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:56:08,949 INFO L225 Difference]: With dead ends: 23 [2020-10-20 00:56:08,949 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 00:56:08,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-20 00:56:08,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 00:56:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2020-10-20 00:56:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 00:56:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-10-20 00:56:08,955 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2020-10-20 00:56:08,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:56:08,956 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-10-20 00:56:08,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 00:56:08,956 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-10-20 00:56:08,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:56:08,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:56:08,957 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-20 00:56:09,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-20 00:56:09,170 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:56:09,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:56:09,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1134799514, now seen corresponding path program 2 times [2020-10-20 00:56:09,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:56:09,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516404228] [2020-10-20 00:56:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:56:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:56:09,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:56:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:56:09,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:56:09,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:56:09,258 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:56:09,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 00:56:09,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:56:09 BoogieIcfgContainer [2020-10-20 00:56:09,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:56:09,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:56:09,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:56:09,309 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:56:09,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:56:08" (3/4) ... [2020-10-20 00:56:09,312 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:56:09,365 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:56:09,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:56:09,368 INFO L168 Benchmark]: Toolchain (without parser) took 2103.12 ms. Allocated memory was 35.1 MB in the beginning and 49.8 MB in the end (delta: 14.7 MB). Free memory was 11.7 MB in the beginning and 14.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,369 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 33.6 MB. Free memory was 18.6 MB in the beginning and 18.6 MB in the end (delta: 27.2 kB). Peak memory consumption was 27.2 kB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.02 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 10.9 MB in the beginning and 26.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.98 ms. Allocated memory is still 43.5 MB. Free memory was 26.2 MB in the beginning and 24.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,372 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 ms. Allocated memory is still 43.5 MB. Free memory was 24.5 MB in the beginning and 23.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,373 INFO L168 Benchmark]: RCFGBuilder took 294.22 ms. Allocated memory was 43.5 MB in the beginning and 43.0 MB in the end (delta: -524.3 kB). Free memory was 23.0 MB in the beginning and 19.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,374 INFO L168 Benchmark]: TraceAbstraction took 1304.66 ms. Allocated memory was 43.0 MB in the beginning and 49.8 MB in the end (delta: 6.8 MB). Free memory was 19.4 MB in the beginning and 17.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,374 INFO L168 Benchmark]: Witness Printer took 57.35 ms. Allocated memory is still 49.8 MB. Free memory was 16.9 MB in the beginning and 14.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:56:09,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 33.6 MB. Free memory was 18.6 MB in the beginning and 18.6 MB in the end (delta: 27.2 kB). Peak memory consumption was 27.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 377.02 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 10.9 MB in the beginning and 26.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 32.98 ms. Allocated memory is still 43.5 MB. Free memory was 26.2 MB in the beginning and 24.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.47 ms. Allocated memory is still 43.5 MB. Free memory was 24.5 MB in the beginning and 23.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 294.22 ms. Allocated memory was 43.5 MB in the beginning and 43.0 MB in the end (delta: -524.3 kB). Free memory was 23.0 MB in the beginning and 19.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1304.66 ms. Allocated memory was 43.0 MB in the beginning and 49.8 MB in the end (delta: 6.8 MB). Free memory was 19.4 MB in the beginning and 17.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. * Witness Printer took 57.35 ms. Allocated memory is still 49.8 MB. Free memory was 16.9 MB in the beginning and 14.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L23] Char *tmp; VAL [tmp={0:0}] [L40] Char pathbuf[1 +1]; [L42] Char *bound = pathbuf + sizeof(pathbuf) - 1; [L44] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1 [L27] Char *p; [L29] p = pathbuf VAL [tmp={3:4}] [L29] COND TRUE p <= pathlim [L15] COND FALSE !(!(cond)) VAL [tmp={3:4}] [L32] *p = 1 VAL [tmp={3:4}] [L29] p++ VAL [tmp={3:4}] [L29] COND TRUE p <= pathlim [L15] COND FALSE !(!(cond)) VAL [tmp={3:4}] [L32] *p = 1 VAL [tmp={3:4}] [L29] p++ VAL [tmp={3:4}] [L29] COND TRUE p <= pathlim [L15] COND TRUE !(cond) VAL [tmp={3:4}] [L12] COND FALSE !(0) VAL [tmp={3:4}] [L12] __assert_fail ("0", "verisec_NetBSD-libc_loop.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [tmp={3:4}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 28 SDslu, 39 SDs, 0 SdLazy, 32 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1158 SizeOfPredicates, 12 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...