./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/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 0.1.25-f470102 [2019-12-07 11:48:26,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:48:26,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:48:26,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:48:26,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:48:26,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:48:26,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:48:26,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:48:26,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:48:26,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:48:26,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:48:26,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:48:26,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:48:26,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:48:26,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:48:26,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:48:26,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:48:26,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:48:26,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:48:26,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:48:26,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:48:26,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:48:26,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:48:26,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:48:26,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:48:26,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:48:26,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:48:26,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:48:26,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:48:26,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:48:26,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:48:26,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:48:26,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:48:26,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:48:26,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:48:26,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:48:26,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:48:26,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:48:26,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:48:26,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:48:26,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:48:26,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 11:48:26,265 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:48:26,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:48:26,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:48:26,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:48:26,267 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:48:26,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:48:26,267 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:48:26,267 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:48:26,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:48:26,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:48:26,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:48:26,267 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:48:26,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:48:26,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:48:26,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:48:26,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:48:26,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:48:26,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:48:26,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:48:26,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:48:26,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:48:26,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/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 [2019-12-07 11:48:26,369 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:48:26,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:48:26,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:48:26,383 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:48:26,383 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:48:26,384 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-12-07 11:48:26,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/data/f3284e06d/9c5d50237d9349e196fb241a13265b42/FLAGe8dcbd852 [2019-12-07 11:48:26,764 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:48:26,765 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-12-07 11:48:26,768 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/data/f3284e06d/9c5d50237d9349e196fb241a13265b42/FLAGe8dcbd852 [2019-12-07 11:48:26,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/data/f3284e06d/9c5d50237d9349e196fb241a13265b42 [2019-12-07 11:48:26,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:48:26,780 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 11:48:26,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:48:26,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:48:26,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:48:26,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bac860e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26, skipping insertion in model container [2019-12-07 11:48:26,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:48:26,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:48:26,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:48:26,948 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:48:26,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:48:26,970 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:48:26,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26 WrapperNode [2019-12-07 11:48:26,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:48:26,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:48:26,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:48:26,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:48:26,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... [2019-12-07 11:48:26,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:48:26,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:48:26,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:48:26,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:48:26,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/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 [2019-12-07 11:48:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 11:48:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:48:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-12-07 11:48:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 11:48:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-12-07 11:48:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:48:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 11:48:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:48:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:48:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:48:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 11:48:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:48:27,192 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:48:27,192 INFO L287 CfgBuilder]: Removed 3 assume(true) statements. [2019-12-07 11:48:27,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:48:27 BoogieIcfgContainer [2019-12-07 11:48:27,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:48:27,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:48:27,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:48:27,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:48:27,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:48:26" (1/3) ... [2019-12-07 11:48:27,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d47c38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:48:27, skipping insertion in model container [2019-12-07 11:48:27,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:48:26" (2/3) ... [2019-12-07 11:48:27,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d47c38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:48:27, skipping insertion in model container [2019-12-07 11:48:27,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:48:27" (3/3) ... [2019-12-07 11:48:27,197 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-read.c [2019-12-07 11:48:27,203 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:48:27,207 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-12-07 11:48:27,215 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-12-07 11:48:27,228 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:48:27,228 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 11:48:27,229 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:48:27,229 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:48:27,229 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:48:27,229 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:48:27,229 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:48:27,229 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:48:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-12-07 11:48:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 11:48:27,245 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:48:27,246 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:48:27,246 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fooErr1REQUIRES_VIOLATION, fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:48:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:48:27,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1189570050, now seen corresponding path program 1 times [2019-12-07 11:48:27,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:48:27,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689207926] [2019-12-07 11:48:27,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:48:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:48:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:48:27,368 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 11:48:27,368 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689207926] [2019-12-07 11:48:27,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:48:27,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 11:48:27,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089758125] [2019-12-07 11:48:27,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:48:27,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:48:27,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:48:27,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:48:27,383 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-12-07 11:48:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:48:27,477 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2019-12-07 11:48:27,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:48:27,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 11:48:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:48:27,486 INFO L225 Difference]: With dead ends: 46 [2019-12-07 11:48:27,486 INFO L226 Difference]: Without dead ends: 43 [2019-12-07 11:48:27,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:48:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-12-07 11:48:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2019-12-07 11:48:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 11:48:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2019-12-07 11:48:27,516 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 10 [2019-12-07 11:48:27,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:48:27,517 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2019-12-07 11:48:27,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:48:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2019-12-07 11:48:27,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:48:27,517 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:48:27,518 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:48:27,518 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fooErr1REQUIRES_VIOLATION, fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2019-12-07 11:48:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:48:27,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1775375512, now seen corresponding path program 1 times [2019-12-07 11:48:27,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:48:27,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302147809] [2019-12-07 11:48:27,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:48:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:48:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:48:27,565 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:48:27,565 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:48:27,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:48:27 BoogieIcfgContainer [2019-12-07 11:48:27,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:48:27,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:48:27,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:48:27,581 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:48:27,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:48:27" (3/4) ... [2019-12-07 11:48:27,582 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:48:27,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7cc40394-fd54-490c-84c6-f47fa188909e/bin/uautomizer/witness.graphml [2019-12-07 11:48:27,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:48:27,610 INFO L168 Benchmark]: Toolchain (without parser) took 830.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 942.5 MB in the beginning and 1.0 GB in the end (delta: -82.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:48:27,610 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:48:27,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:48:27,611 INFO L168 Benchmark]: Boogie Preprocessor took 23.11 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 11:48:27,612 INFO L168 Benchmark]: RCFGBuilder took 198.76 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:48:27,612 INFO L168 Benchmark]: TraceAbstraction took 387.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:48:27,613 INFO L168 Benchmark]: Witness Printer took 28.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:48:27,615 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.11 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 198.76 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 387.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 28.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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={2:0}, i=0] [L22] COND TRUE i < 100 VAL [b={2:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={2:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={2:0}, b={2:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 27 SDslu, 14 SDs, 0 SdLazy, 53 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...