./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -s /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 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 0.1.23-5842f4b [2018-11-18 09:12:59,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:12:59,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:12:59,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:12:59,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:12:59,379 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:12:59,379 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:12:59,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:12:59,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:12:59,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:12:59,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:12:59,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:12:59,383 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:12:59,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:12:59,385 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:12:59,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:12:59,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:12:59,387 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:12:59,388 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:12:59,389 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:12:59,390 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:12:59,391 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:12:59,392 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:12:59,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:12:59,393 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:12:59,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:12:59,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:12:59,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:12:59,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:12:59,396 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:12:59,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:12:59,396 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:12:59,396 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:12:59,397 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:12:59,397 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:12:59,398 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:12:59,398 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-18 09:12:59,409 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:12:59,409 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:12:59,410 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:12:59,410 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:12:59,410 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:12:59,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:12:59,410 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:12:59,410 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:12:59,411 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:12:59,411 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:12:59,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:12:59,412 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 09:12:59,412 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 09:12:59,412 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 09:12:59,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:12:59,412 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:12:59,412 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:12:59,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:12:59,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:12:59,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:12:59,413 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:12:59,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:12:59,413 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:12:59,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:12:59,414 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:12:59,414 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:12:59,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aeae4642ea0f346b37f312868ec7e7128e333d20 [2018-11-18 09:12:59,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:12:59,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:12:59,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:12:59,448 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:12:59,449 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:12:59,449 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-11-18 09:12:59,485 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/data/7ac4201f6/000ba3fe7736449a955b21b28795f352/FLAGd3a3b09ea [2018-11-18 09:12:59,871 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:12:59,872 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-11-18 09:12:59,875 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/data/7ac4201f6/000ba3fe7736449a955b21b28795f352/FLAGd3a3b09ea [2018-11-18 09:12:59,884 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/data/7ac4201f6/000ba3fe7736449a955b21b28795f352 [2018-11-18 09:12:59,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:12:59,887 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 09:12:59,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:12:59,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:12:59,889 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:12:59,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:12:59" (1/1) ... [2018-11-18 09:12:59,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a19fc73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:59, skipping insertion in model container [2018-11-18 09:12:59,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:12:59" (1/1) ... [2018-11-18 09:12:59,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:12:59,908 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:13:00,006 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:13:00,011 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:13:00,021 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:13:00,029 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:13:00,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00 WrapperNode [2018-11-18 09:13:00,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:13:00,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:13:00,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:13:00,031 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:13:00,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... [2018-11-18 09:13:00,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... [2018-11-18 09:13:00,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... [2018-11-18 09:13:00,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... [2018-11-18 09:13:00,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... [2018-11-18 09:13:00,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... [2018-11-18 09:13:00,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... [2018-11-18 09:13:00,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:13:00,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:13:00,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:13:00,061 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:13:00,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/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 [2018-11-18 09:13:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:13:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:13:00,139 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-11-18 09:13:00,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:13:00,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 09:13:00,330 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:13:00,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:13:00 BoogieIcfgContainer [2018-11-18 09:13:00,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:13:00,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:13:00,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:13:00,334 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:13:00,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:12:59" (1/3) ... [2018-11-18 09:13:00,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b2cbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:13:00, skipping insertion in model container [2018-11-18 09:13:00,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:13:00" (2/3) ... [2018-11-18 09:13:00,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b2cbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:13:00, skipping insertion in model container [2018-11-18 09:13:00,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:13:00" (3/3) ... [2018-11-18 09:13:00,337 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-read.c [2018-11-18 09:13:00,345 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:13:00,351 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-18 09:13:00,363 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-18 09:13:00,385 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:13:00,385 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:13:00,385 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-18 09:13:00,386 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:13:00,386 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:13:00,386 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:13:00,386 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:13:00,386 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:13:00,386 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:13:00,399 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 09:13:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 09:13:00,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:13:00,408 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:13:00,409 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-18 09:13:00,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:13:00,414 INFO L82 PathProgramCache]: Analyzing trace with hash 763670053, now seen corresponding path program 1 times [2018-11-18 09:13:00,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:13:00,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:13:00,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:00,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:13:00,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:13:00,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:13:00,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:13:00,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:13:00,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 09:13:00,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:13:00,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:13:00,513 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 09:13:00,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:13:00,523 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-11-18 09:13:00,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:13:00,524 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 09:13:00,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:13:00,529 INFO L225 Difference]: With dead ends: 42 [2018-11-18 09:13:00,530 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 09:13:00,531 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:13:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 09:13:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 09:13:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 09:13:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-11-18 09:13:00,558 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 11 [2018-11-18 09:13:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:13:00,558 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-11-18 09:13:00,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 09:13:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-11-18 09:13:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 09:13:00,559 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:13:00,559 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:13:00,559 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-18 09:13:00,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:13:00,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1756444633, now seen corresponding path program 1 times [2018-11-18 09:13:00,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:13:00,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:13:00,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:00,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:13:00,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:13:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:13:00,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:13:00,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:13:00,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:13:00,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:13:00,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:13:00,596 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 3 states. [2018-11-18 09:13:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:13:00,639 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2018-11-18 09:13:00,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:13:00,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 09:13:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:13:00,641 INFO L225 Difference]: With dead ends: 47 [2018-11-18 09:13:00,641 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 09:13:00,642 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:13:00,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 09:13:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2018-11-18 09:13:00,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 09:13:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-11-18 09:13:00,649 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 12 [2018-11-18 09:13:00,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:13:00,649 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-11-18 09:13:00,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:13:00,649 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-11-18 09:13:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 09:13:00,650 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:13:00,650 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:13:00,650 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION]=== [2018-11-18 09:13:00,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:13:00,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1301398113, now seen corresponding path program 1 times [2018-11-18 09:13:00,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:13:00,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:13:00,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:00,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:13:00,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:13:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:13:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:13:00,687 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 09:13:00,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:13:00 BoogieIcfgContainer [2018-11-18 09:13:00,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:13:00,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:13:00,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:13:00,700 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:13:00,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:13:00" (3/4) ... [2018-11-18 09:13:00,702 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 09:13:00,728 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_803a1b9b-9dd7-466a-bd01-e9a91a5547cd/bin-2019/uautomizer/witness.graphml [2018-11-18 09:13:00,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:13:00,728 INFO L168 Benchmark]: Toolchain (without parser) took 842.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -116.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:00,729 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:13:00,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:00,730 INFO L168 Benchmark]: Boogie Preprocessor took 29.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:00,730 INFO L168 Benchmark]: RCFGBuilder took 270.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:00,731 INFO L168 Benchmark]: TraceAbstraction took 368.38 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:00,731 INFO L168 Benchmark]: Witness Printer took 27.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:13:00,732 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.80 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 270.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 368.38 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 27.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. 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 VAL [b={403:0}, i=0] [L22] COND TRUE i < 100 VAL [b={403:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={403:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={403:0}, b={403:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={403:0}, b={403:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={403:0}, b={403:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 8 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 SDtfs, 15 SDslu, 24 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...