./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 25981771a012eec333f97d8302486eae22970d9e ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:20:36,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:20:36,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:20:36,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:20:36,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:20:36,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:20:36,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:20:36,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:20:36,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:20:36,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:20:36,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:20:36,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:20:36,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:20:36,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:20:36,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:20:36,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:20:36,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:20:36,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:20:36,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:20:36,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:20:36,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:20:36,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:20:36,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:20:36,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:20:36,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:20:36,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:20:36,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:20:36,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:20:36,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:20:36,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:20:36,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:20:36,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:20:36,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:20:36,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:20:36,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:20:36,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:20:36,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:20:36,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:20:36,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:20:36,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:20:36,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:20:36,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 10:20:36,145 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:20:36,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:20:36,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:20:36,145 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:20:36,146 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:20:36,146 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:20:36,146 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:20:36,146 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:20:36,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:20:36,146 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:20:36,146 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:20:36,146 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:20:36,146 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:20:36,147 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:20:36,147 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:20:36,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 10:20:36,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 10:20:36,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:20:36,148 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:20:36,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:20:36,149 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:20:36,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:20:36,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:20:36,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:20:36,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:20:36,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:20:36,149 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:20:36,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:20:36,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:20:36,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:20:36,150 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25981771a012eec333f97d8302486eae22970d9e [2020-12-09 10:20:36,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:20:36,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:20:36,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:20:36,333 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:20:36,333 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:20:36,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c [2020-12-09 10:20:36,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/data/fa4edcfc2/0b9f6b46ad5d4c269e0a0b4d3dcd6e83/FLAG87399c119 [2020-12-09 10:20:36,742 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:20:36,742 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/sv-benchmarks/c/memsafety-ext3/scopes4-2.c [2020-12-09 10:20:36,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/data/fa4edcfc2/0b9f6b46ad5d4c269e0a0b4d3dcd6e83/FLAG87399c119 [2020-12-09 10:20:36,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/data/fa4edcfc2/0b9f6b46ad5d4c269e0a0b4d3dcd6e83 [2020-12-09 10:20:36,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:20:36,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:20:36,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:20:36,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:20:36,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:20:36,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a084ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36, skipping insertion in model container [2020-12-09 10:20:36,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:20:36,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:20:36,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:20:36,912 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:20:36,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:20:36,939 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:20:36,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36 WrapperNode [2020-12-09 10:20:36,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:20:36,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:20:36,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:20:36,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:20:36,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:20:36,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:20:36,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:20:36,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:20:36,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... [2020-12-09 10:20:36,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:20:36,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:20:36,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:20:36,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:20:36,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/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 [2020-12-09 10:20:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 10:20:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:20:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:20:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 10:20:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 10:20:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:20:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 10:20:37,227 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:20:37,227 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-09 10:20:37,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:20:37 BoogieIcfgContainer [2020-12-09 10:20:37,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:20:37,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:20:37,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:20:37,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:20:37,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:20:36" (1/3) ... [2020-12-09 10:20:37,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5dfb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:20:37, skipping insertion in model container [2020-12-09 10:20:37,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:20:36" (2/3) ... [2020-12-09 10:20:37,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5dfb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:20:37, skipping insertion in model container [2020-12-09 10:20:37,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:20:37" (3/3) ... [2020-12-09 10:20:37,238 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes4-2.c [2020-12-09 10:20:37,251 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:20:37,254 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-09 10:20:37,264 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-09 10:20:37,282 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:20:37,282 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 10:20:37,282 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:20:37,282 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:20:37,283 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:20:37,283 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:20:37,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:20:37,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:20:37,296 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-09 10:20:37,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 10:20:37,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:20:37,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 10:20:37,302 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 10:20:37,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:20:37,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1554, now seen corresponding path program 1 times [2020-12-09 10:20:37,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:20:37,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569236030] [2020-12-09 10:20:37,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:20:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:20:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:20:37,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569236030] [2020-12-09 10:20:37,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:20:37,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 10:20:37,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628366566] [2020-12-09 10:20:37,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:20:37,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:20:37,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:20:37,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:20:37,449 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-12-09 10:20:37,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:20:37,469 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-12-09 10:20:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:20:37,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 10:20:37,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:20:37,475 INFO L225 Difference]: With dead ends: 9 [2020-12-09 10:20:37,476 INFO L226 Difference]: Without dead ends: 8 [2020-12-09 10:20:37,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:20:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-09 10:20:37,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-09 10:20:37,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-09 10:20:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-12-09 10:20:37,509 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 2 [2020-12-09 10:20:37,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:20:37,509 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-12-09 10:20:37,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:20:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-09 10:20:37,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-09 10:20:37,509 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:20:37,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-12-09 10:20:37,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:20:37,510 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 10:20:37,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:20:37,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1555, now seen corresponding path program 1 times [2020-12-09 10:20:37,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:20:37,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264788041] [2020-12-09 10:20:37,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:20:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:20:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:20:37,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264788041] [2020-12-09 10:20:37,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:20:37,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 10:20:37,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384056923] [2020-12-09 10:20:37,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:20:37,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:20:37,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:20:37,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:20:37,544 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 3 states. [2020-12-09 10:20:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:20:37,550 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-12-09 10:20:37,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:20:37,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-12-09 10:20:37,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:20:37,551 INFO L225 Difference]: With dead ends: 7 [2020-12-09 10:20:37,551 INFO L226 Difference]: Without dead ends: 7 [2020-12-09 10:20:37,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:20:37,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-09 10:20:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-09 10:20:37,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-09 10:20:37,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-12-09 10:20:37,553 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 2 [2020-12-09 10:20:37,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:20:37,553 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-12-09 10:20:37,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:20:37,554 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-09 10:20:37,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 10:20:37,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:20:37,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 10:20:37,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 10:20:37,554 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-09 10:20:37,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:20:37,555 INFO L82 PathProgramCache]: Analyzing trace with hash 48775, now seen corresponding path program 1 times [2020-12-09 10:20:37,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:20:37,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535987146] [2020-12-09 10:20:37,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:20:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:20:37,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:20:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 10:20:37,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 10:20:37,595 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 10:20:37,596 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 10:20:37,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 10:20:37,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:20:37 BoogieIcfgContainer [2020-12-09 10:20:37,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:20:37,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:20:37,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:20:37,609 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:20:37,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:20:37" (3/4) ... [2020-12-09 10:20:37,611 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 10:20:37,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9c8d2795-cfa6-4172-a7dd-a106c971426f/bin/utaipan/witness.graphml [2020-12-09 10:20:37,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:20:37,634 INFO L168 Benchmark]: Toolchain (without parser) took 869.93 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 89.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-09 10:20:37,634 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:20:37,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.81 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 100.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:20:37,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 121.6 MB. Free memory was 100.3 MB in the beginning and 98.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:20:37,636 INFO L168 Benchmark]: Boogie Preprocessor took 13.60 ms. Allocated memory is still 121.6 MB. Free memory was 98.8 MB in the beginning and 97.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:20:37,636 INFO L168 Benchmark]: RCFGBuilder took 251.95 ms. Allocated memory is still 121.6 MB. Free memory was 97.7 MB in the beginning and 81.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:20:37,636 INFO L168 Benchmark]: TraceAbstraction took 377.52 ms. Allocated memory is still 121.6 MB. Free memory was 81.4 MB in the beginning and 90.5 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:20:37,637 INFO L168 Benchmark]: Witness Printer took 23.71 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 89.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:20:37,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 174.81 ms. Allocated memory is still 121.6 MB. Free memory was 94.9 MB in the beginning and 100.3 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 121.6 MB. Free memory was 100.3 MB in the beginning and 98.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.60 ms. Allocated memory is still 121.6 MB. Free memory was 98.8 MB in the beginning and 97.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 251.95 ms. Allocated memory is still 121.6 MB. Free memory was 97.7 MB in the beginning and 81.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 377.52 ms. Allocated memory is still 121.6 MB. Free memory was 81.4 MB in the beginning and 90.5 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 23.71 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 89.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L12] int arr[123]; [L5] int arr[1024]; [L6] arr[194] = 13 [L7] return arr + 1; [L7] return arr + 1; [L13] return foo2(); [L17] int *a = foo(); [L18] \read(*a) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...