./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/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 aeae4642ea0f346b37f312868ec7e7128e333d20 ........................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 11:26:30,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:30,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:30,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:30,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:30,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:30,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:30,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:30,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:30,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:30,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:30,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:30,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:30,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:30,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:30,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:30,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:30,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:30,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:30,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:30,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:30,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:30,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:30,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:30,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:30,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:30,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:30,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:30,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:30,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:30,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:30,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:30,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:30,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:30,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:30,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:30,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:30,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:30,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:30,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:30,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:30,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2019-10-22 11:26:30,857 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:30,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:30,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:30,860 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:30,860 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:30,860 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:30,860 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:30,860 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:30,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:30,861 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:30,861 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:30,861 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:30,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 11:26:30,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 11:26:30,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:30,863 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:30,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:26:30,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:30,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:30,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:30,864 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 11:26:30,864 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 11:26:30,864 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 11:26:30,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:30,865 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:30,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:30,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:30,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:30,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:30,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:30,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:30,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:30,866 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:30,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:30,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:30,867 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/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/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 -> aeae4642ea0f346b37f312868ec7e7128e333d20 [2019-10-22 11:26:30,909 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:30,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:30,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:30,934 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:30,935 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:30,936 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-10-22 11:26:30,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/data/f495396cc/69789cdd2ebc4e6d8f61cc09dbdec3a7/FLAG74cb6eb0e [2019-10-22 11:26:31,378 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:31,378 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-10-22 11:26:31,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/data/f495396cc/69789cdd2ebc4e6d8f61cc09dbdec3a7/FLAG74cb6eb0e [2019-10-22 11:26:31,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/data/f495396cc/69789cdd2ebc4e6d8f61cc09dbdec3a7 [2019-10-22 11:26:31,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:31,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:31,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:31,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:31,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:31,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24af76ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31, skipping insertion in model container [2019-10-22 11:26:31,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,417 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:31,435 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:31,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:31,659 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:31,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:31,789 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:31,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31 WrapperNode [2019-10-22 11:26:31,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:31,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:31,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:31,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:31,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:31,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:31,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:31,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:31,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... [2019-10-22 11:26:31,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:31,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:31,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:31,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:31,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/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 [2019-10-22 11:26:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:26:31,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:31,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:26:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:26:32,218 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:32,218 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 11:26:32,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32 BoogieIcfgContainer [2019-10-22 11:26:32,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:32,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:32,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:32,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:32,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:31" (1/3) ... [2019-10-22 11:26:32,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bdfa80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:32, skipping insertion in model container [2019-10-22 11:26:32,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:31" (2/3) ... [2019-10-22 11:26:32,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bdfa80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:32, skipping insertion in model container [2019-10-22 11:26:32,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32" (3/3) ... [2019-10-22 11:26:32,227 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-read.c [2019-10-22 11:26:32,236 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:32,243 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-10-22 11:26:32,254 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-10-22 11:26:32,273 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:32,273 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 11:26:32,273 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:32,274 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:32,274 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:32,274 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:32,274 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:32,274 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-10-22 11:26:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:26:32,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:32,298 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:26:32,299 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-10-22 11:26:32,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:32,304 INFO L82 PathProgramCache]: Analyzing trace with hash 28698920, now seen corresponding path program 1 times [2019-10-22 11:26:32,310 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:32,311 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541959128] [2019-10-22 11:26:32,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:32,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:32,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:32,427 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:26:32,428 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:26:32,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:32 BoogieIcfgContainer [2019-10-22 11:26:32,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:32,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:32,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:32,445 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:32,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:32" (3/4) ... [2019-10-22 11:26:32,448 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:26:32,488 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa6a3a13-cf66-4db3-82e6-5812c920e773/bin/utaipan/witness.graphml [2019-10-22 11:26:32,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:32,491 INFO L168 Benchmark]: Toolchain (without parser) took 1088.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:32,491 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:32,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -210.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:32,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:32,493 INFO L168 Benchmark]: Boogie Preprocessor took 39.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:32,494 INFO L168 Benchmark]: RCFGBuilder took 347.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:32,494 INFO L168 Benchmark]: TraceAbstraction took 223.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:32,494 INFO L168 Benchmark]: Witness Printer took 43.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:32,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 387.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -210.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 347.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 223.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Witness Printer took 43.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L22] i = 0 [L22] COND TRUE i < 100 [L13] int a[n], i; [L14] i = 0 [L14] COND TRUE i < size + 1 [L15] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...