./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/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 aa3ae4378a5284e50be7191d52900376e96b0fdc ............................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 20:02:46,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:02:46,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:02:46,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:02:46,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:02:46,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:02:46,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:02:46,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:02:46,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:02:46,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:02:46,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:02:46,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:02:46,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:02:46,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:02:46,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:02:46,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:02:46,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:02:46,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:02:46,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:02:46,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:02:46,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:02:46,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:02:46,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:02:46,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:02:46,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:02:46,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:02:46,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:02:46,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:02:46,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:02:46,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:02:46,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:02:46,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:02:46,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:02:46,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:02:46,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:02:46,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:02:46,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:02:46,092 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:02:46,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:02:46,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:02:46,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:02:46,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-12-07 20:02:46,104 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:02:46,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:02:46,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:02:46,105 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:02:46,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:02:46,105 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:02:46,105 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:02:46,105 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:02:46,105 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:02:46,105 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:02:46,106 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:02:46,106 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:02:46,106 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:02:46,106 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:02:46,106 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:02:46,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 20:02:46,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 20:02:46,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:02:46,107 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:02:46,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 20:02:46,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:02:46,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:02:46,108 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:02:46,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:02:46,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:02:46,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:02:46,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:02:46,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:02:46,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:02:46,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:02:46,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:02:46,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:02:46,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:02:46,110 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_85e508e8-8209-4a2f-b193-e53c84a678e2/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 -> aa3ae4378a5284e50be7191d52900376e96b0fdc [2019-12-07 20:02:46,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:02:46,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:02:46,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:02:46,221 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:02:46,221 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:02:46,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/../../sv-benchmarks/c/memsafety-ext3/derefInLoop1.c [2019-12-07 20:02:46,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/data/897261927/55eb70b53f89436cbdd0242d95864315/FLAGcdccf5952 [2019-12-07 20:02:46,690 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:02:46,690 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/sv-benchmarks/c/memsafety-ext3/derefInLoop1.c [2019-12-07 20:02:46,694 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/data/897261927/55eb70b53f89436cbdd0242d95864315/FLAGcdccf5952 [2019-12-07 20:02:46,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/data/897261927/55eb70b53f89436cbdd0242d95864315 [2019-12-07 20:02:46,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:02:46,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:02:46,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:02:46,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:02:46,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:02:46,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9c5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46, skipping insertion in model container [2019-12-07 20:02:46,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:02:46,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:02:46,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:02:46,878 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:02:46,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:02:46,899 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:02:46,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46 WrapperNode [2019-12-07 20:02:46,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:02:46,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:02:46,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:02:46,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:02:46,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:02:46,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:02:46,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:02:46,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:02:46,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... [2019-12-07 20:02:46,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:02:46,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:02:46,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:02:46,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:02:46,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/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 [2019-12-07 20:02:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 20:02:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:02:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:02:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:02:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:02:47,103 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:02:47,103 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 20:02:47,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:02:47 BoogieIcfgContainer [2019-12-07 20:02:47,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:02:47,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:02:47,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:02:47,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:02:47,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:02:46" (1/3) ... [2019-12-07 20:02:47,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5864144d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:02:47, skipping insertion in model container [2019-12-07 20:02:47,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:02:46" (2/3) ... [2019-12-07 20:02:47,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5864144d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:02:47, skipping insertion in model container [2019-12-07 20:02:47,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:02:47" (3/3) ... [2019-12-07 20:02:47,109 INFO L109 eAbstractionObserver]: Analyzing ICFG derefInLoop1.c [2019-12-07 20:02:47,115 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:02:47,120 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:02:47,127 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:02:47,139 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:02:47,139 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 20:02:47,139 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:02:47,139 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:02:47,139 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:02:47,139 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:02:47,139 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:02:47,139 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:02:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-12-07 20:02:47,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 20:02:47,152 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:02:47,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 20:02:47,153 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 20:02:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:02:47,157 INFO L82 PathProgramCache]: Analyzing trace with hash 58678, now seen corresponding path program 1 times [2019-12-07 20:02:47,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:02:47,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304223497] [2019-12-07 20:02:47,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:02:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:02:47,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:02:47,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304223497] [2019-12-07 20:02:47,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:02:47,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 20:02:47,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403547107] [2019-12-07 20:02:47,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:02:47,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:02:47,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:02:47,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:02:47,265 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2019-12-07 20:02:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:02:47,287 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-07 20:02:47,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:02:47,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-12-07 20:02:47,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:02:47,295 INFO L225 Difference]: With dead ends: 13 [2019-12-07 20:02:47,295 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 20:02:47,296 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:02:47,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 20:02:47,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-12-07 20:02:47,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 20:02:47,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-12-07 20:02:47,323 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 3 [2019-12-07 20:02:47,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:02:47,323 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-12-07 20:02:47,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:02:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-12-07 20:02:47,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 20:02:47,324 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:02:47,324 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 20:02:47,325 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 20:02:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:02:47,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1727391791, now seen corresponding path program 1 times [2019-12-07 20:02:47,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:02:47,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782445948] [2019-12-07 20:02:47,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:02:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:02:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:02:47,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782445948] [2019-12-07 20:02:47,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691482475] [2019-12-07 20:02:47,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/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 [2019-12-07 20:02:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:02:47,383 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 20:02:47,386 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:02:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:02:47,401 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:02:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:02:47,411 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1875876733] [2019-12-07 20:02:47,426 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-12-07 20:02:47,426 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:02:47,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:02:47,434 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:02:47,434 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:02:47,646 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 20:02:47,693 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 20:02:47,701 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:02:47,819 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-12-07 20:02:47,981 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2019-12-07 20:02:48,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:02:48,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 7 [2019-12-07 20:02:48,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262492880] [2019-12-07 20:02:48,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:02:48,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:02:48,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:02:48,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:02:48,030 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 5 states. [2019-12-07 20:02:48,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:02:48,077 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-07 20:02:48,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:02:48,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-12-07 20:02:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:02:48,078 INFO L225 Difference]: With dead ends: 18 [2019-12-07 20:02:48,078 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 20:02:48,079 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:02:48,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 20:02:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2019-12-07 20:02:48,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 20:02:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-12-07 20:02:48,081 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2019-12-07 20:02:48,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:02:48,082 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-12-07 20:02:48,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:02:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-12-07 20:02:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 20:02:48,082 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:02:48,082 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-12-07 20:02:48,283 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:02:48,284 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-12-07 20:02:48,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:02:48,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2009516503, now seen corresponding path program 1 times [2019-12-07 20:02:48,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:02:48,286 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807321309] [2019-12-07 20:02:48,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:02:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:02:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:02:48,364 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:02:48,364 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:02:48,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:02:48 BoogieIcfgContainer [2019-12-07 20:02:48,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:02:48,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:02:48,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:02:48,379 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:02:48,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:02:47" (3/4) ... [2019-12-07 20:02:48,381 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:02:48,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_85e508e8-8209-4a2f-b193-e53c84a678e2/bin/utaipan/witness.graphml [2019-12-07 20:02:48,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:02:48,411 INFO L168 Benchmark]: Toolchain (without parser) took 1705.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 943.5 MB in the beginning and 914.0 MB in the end (delta: 29.6 MB). Peak memory consumption was 127.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:02:48,411 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:02:48,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:02:48,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:02:48,412 INFO L168 Benchmark]: Boogie Preprocessor took 13.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:02:48,413 INFO L168 Benchmark]: RCFGBuilder took 169.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:02:48,413 INFO L168 Benchmark]: TraceAbstraction took 1273.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 914.0 MB in the end (delta: 157.2 MB). Peak memory consumption was 157.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:02:48,413 INFO L168 Benchmark]: Witness Printer took 30.66 ms. Allocated memory is still 1.1 GB. Free memory is still 914.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:02:48,415 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 193.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 169.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1273.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 914.0 MB in the end (delta: 157.2 MB). Peak memory consumption was 157.2 MB. Max. memory is 11.5 GB. * Witness Printer took 30.66 ms. Allocated memory is still 1.1 GB. Free memory is still 914.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L3] int i = 0; [L3] COND TRUE i < 2 [L4] int a[10]; [L5] COND TRUE i == 0 [L6] p = a [L3] i++ [L3] COND TRUE i < 2 [L4] int a[10]; [L5] COND FALSE !(i == 0) [L8] p[0] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 5 SDs, 0 SdLazy, 38 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 1 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 276, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME[ms]: 169, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 9, TOOLS_QUANTIFIERELIM_TIME[ms]: 165, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 69, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 17, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 68, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 2, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 6, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 50, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 49, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 1, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 6, DAG_COMPRESSION_PROCESSED_NODES: 54, DAG_COMPRESSION_RETAINED_NODES: 22, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...