./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -s /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 639853f2f40cff84155fe09902eff2b5a20185f5 ....................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-09 11:51:38,328 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:51:38,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:51:38,334 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:51:38,335 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:51:38,335 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:51:38,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:51:38,336 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:51:38,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:51:38,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:51:38,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:51:38,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:51:38,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:51:38,339 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:51:38,340 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:51:38,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:51:38,340 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:51:38,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:51:38,342 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:51:38,343 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:51:38,343 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:51:38,344 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:51:38,345 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:51:38,345 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:51:38,345 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:51:38,345 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:51:38,346 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:51:38,346 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:51:38,347 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:51:38,347 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:51:38,347 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:51:38,347 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:51:38,348 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:51:38,348 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:51:38,348 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:51:38,348 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:51:38,349 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 11:51:38,356 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:51:38,356 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:51:38,356 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 11:51:38,356 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 11:51:38,357 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:51:38,357 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 11:51:38,357 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 11:51:38,358 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 11:51:38,358 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:51:38,358 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:51:38,358 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 11:51:38,358 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:51:38,358 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:51:38,358 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 11:51:38,358 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:51:38,358 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_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak 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 -> Kojak 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 -> 639853f2f40cff84155fe09902eff2b5a20185f5 [2018-12-09 11:51:38,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:51:38,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:51:38,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:51:38,384 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:51:38,385 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:51:38,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-12-09 11:51:38,418 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/data/77b7b2495/531ed675073b4f06a38b1b67c99e947d/FLAGa73b8496a [2018-12-09 11:51:38,848 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:51:38,848 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-12-09 11:51:38,852 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/data/77b7b2495/531ed675073b4f06a38b1b67c99e947d/FLAGa73b8496a [2018-12-09 11:51:38,863 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/data/77b7b2495/531ed675073b4f06a38b1b67c99e947d [2018-12-09 11:51:38,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:51:38,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:51:38,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:51:38,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:51:38,869 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:51:38,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:51:38" (1/1) ... [2018-12-09 11:51:38,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d92faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:38, skipping insertion in model container [2018-12-09 11:51:38,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:51:38" (1/1) ... [2018-12-09 11:51:38,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:51:38,891 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:51:38,993 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:51:39,000 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:51:39,013 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:51:39,022 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:51:39,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39 WrapperNode [2018-12-09 11:51:39,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:51:39,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:51:39,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:51:39,023 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:51:39,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:51:39,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:51:39,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:51:39,047 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:51:39,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:51:39,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:51:39,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:51:39,096 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:51:39,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:51:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-12-09 11:51:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 11:51:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:51:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:51:39,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:51:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 11:51:39,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:51:39,359 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:51:39,360 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-09 11:51:39,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:51:39 BoogieIcfgContainer [2018-12-09 11:51:39,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:51:39,360 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 11:51:39,360 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 11:51:39,367 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 11:51:39,367 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:51:39" (1/1) ... [2018-12-09 11:51:39,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:51:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:51:39,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-12-09 11:51:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-09 11:51:39,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 11:51:39,396 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:51:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:51:39,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:51:39,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:51:39,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2018-12-09 11:51:39,492 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2018-12-09 11:51:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 11:51:39,492 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:51:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:51:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:51:39,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:51:39,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2018-12-09 11:51:39,549 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-12-09 11:51:39,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 11:51:39,551 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:51:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:51:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:51:39,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:51:39,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2018-12-09 11:51:39,608 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-12-09 11:51:39,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 11:51:39,608 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:51:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:51:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:51:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:51:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2018-12-09 11:51:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2018-12-09 11:51:39,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 11:51:39,764 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:51:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:51:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:51:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:51:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:51:39,808 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2018-12-09 11:51:39,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 11:51:39 ImpRootNode [2018-12-09 11:51:39,824 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 11:51:39,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:51:39,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:51:39,824 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:51:39,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:51:39" (3/4) ... [2018-12-09 11:51:39,826 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 11:51:39,850 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_02c0a311-bccd-43e5-bd5a-17b543ec58b9/bin-2019/ukojak/witness.graphml [2018-12-09 11:51:39,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:51:39,850 INFO L168 Benchmark]: Toolchain (without parser) took 985.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 954.4 MB in the beginning and 992.1 MB in the end (delta: -37.7 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:51:39,851 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:51:39,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.16 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:51:39,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:51:39,852 INFO L168 Benchmark]: Boogie Preprocessor took 47.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-09 11:51:39,853 INFO L168 Benchmark]: RCFGBuilder took 264.56 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:51:39,853 INFO L168 Benchmark]: CodeCheck took 463.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 994.8 MB in the end (delta: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:51:39,853 INFO L168 Benchmark]: Witness Printer took 26.15 ms. Allocated memory is still 1.1 GB. Free memory was 994.8 MB in the beginning and 992.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:51:39,855 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 40 locations, 11 error locations. UNSAFE Result, 0.4s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 176 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L21] int a[n], i; [L22] i = 0 [L22] COND FALSE !(i < size) [L12] int res = 0, i; [L13] i = 0 [L13] COND TRUE i < size [L14] b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.16 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.18 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 264.56 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * CodeCheck took 463.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 994.8 MB in the end (delta: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. * Witness Printer took 26.15 ms. Allocated memory is still 1.1 GB. Free memory was 994.8 MB in the beginning and 992.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...