./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/diff_usafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/diff_usafe.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/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 36668c3ad6b05a2dc08891e0da2e8018cdda58e2 ................................................................................................................................................................................................................................ 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 0.2.0-a4ecdab [2020-11-28 04:43:03,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:03,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:03,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:03,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:03,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:03,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:03,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:03,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:03,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:03,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:03,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:03,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:03,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:03,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:03,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:03,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:03,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:03,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:03,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:03,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:03,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:03,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:03,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:03,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:03,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:03,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:03,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:03,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:03,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:03,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:03,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:03,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:03,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:03,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:03,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:03,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:03,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:03,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:03,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:03,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:03,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:43:03,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:03,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:03,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:03,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:03,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:03,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:03,478 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:43:03,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:03,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:03,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:03,479 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:43:03,480 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:43:03,480 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:43:03,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:03,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:03,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:03,481 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:03,481 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:03,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:03,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:03,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:03,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:03,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:03,482 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:03,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:03,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36668c3ad6b05a2dc08891e0da2e8018cdda58e2 [2020-11-28 04:43:03,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:03,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:03,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:03,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:03,768 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:03,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/../../sv-benchmarks/c/array-memsafety/diff_usafe.c [2020-11-28 04:43:03,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/data/ba91c8c4e/4491d55ce6484ee29dee3e6bf8e13bb8/FLAG60ea7782a [2020-11-28 04:43:04,318 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:04,319 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/sv-benchmarks/c/array-memsafety/diff_usafe.c [2020-11-28 04:43:04,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/data/ba91c8c4e/4491d55ce6484ee29dee3e6bf8e13bb8/FLAG60ea7782a [2020-11-28 04:43:04,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/data/ba91c8c4e/4491d55ce6484ee29dee3e6bf8e13bb8 [2020-11-28 04:43:04,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:04,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:04,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:04,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:04,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:04,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:04,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17fff23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04, skipping insertion in model container [2020-11-28 04:43:04,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:04,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:04,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:04,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:04,909 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:04,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:04,978 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:04,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04 WrapperNode [2020-11-28 04:43:04,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:04,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:04,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:04,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:04,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:04,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:05,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:05,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:05,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:05,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... [2020-11-28 04:43:05,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:05,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:05,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:05,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:05,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/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 [2020-11-28 04:43:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:43:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:43:05,508 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:05,509 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 04:43:05,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:05 BoogieIcfgContainer [2020-11-28 04:43:05,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:05,512 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:05,512 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:05,527 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:05,527 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:05" (1/1) ... [2020-11-28 04:43:05,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:05,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2020-11-28 04:43:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-11-28 04:43:05,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:43:05,568 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:05,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:05,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2020-11-28 04:43:05,771 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-11-28 04:43:05,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:43:05,772 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:05,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:05,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:05,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:05,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:05,898 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-28 04:43:05,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:05 ImpRootNode [2020-11-28 04:43:05,932 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:05,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:05,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:05,934 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:05,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:05" (3/4) ... [2020-11-28 04:43:05,936 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:43:05,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e058070e-efdf-4c2d-934a-e625f3d62053/bin/ukojak/witness.graphml [2020-11-28 04:43:05,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:05,997 INFO L168 Benchmark]: Toolchain (without parser) took 1262.14 ms. Allocated memory is still 142.6 MB. Free memory was 115.8 MB in the beginning and 118.2 MB in the end (delta: -2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:05,998 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 86.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:05,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.15 ms. Allocated memory is still 142.6 MB. Free memory was 115.4 MB in the beginning and 120.1 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:06,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.45 ms. Allocated memory is still 142.6 MB. Free memory was 120.1 MB in the beginning and 118.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:06,001 INFO L168 Benchmark]: Boogie Preprocessor took 23.71 ms. Allocated memory is still 142.6 MB. Free memory was 118.7 MB in the beginning and 117.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:06,002 INFO L168 Benchmark]: RCFGBuilder took 472.80 ms. Allocated memory is still 142.6 MB. Free memory was 117.6 MB in the beginning and 97.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:06,004 INFO L168 Benchmark]: CodeCheck took 420.44 ms. Allocated memory is still 142.6 MB. Free memory was 97.3 MB in the beginning and 120.3 MB in the end (delta: -22.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:06,004 INFO L168 Benchmark]: Witness Printer took 46.95 ms. Allocated memory is still 142.6 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:06,009 INFO L339 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, 20 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 4 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 15]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L30] int *A; [L31] int Alen = __VERIFIER_nondet_int(); [L32] int *B; [L33] int Blen = __VERIFIER_nondet_int(); [L34] int *D; [L5] int k = 0; [L6] int i = 0; [L7] int l1 = Alen; [L8] int l2 = Blen; [L9] int found; [L11] COND TRUE i < l1 [L12] int j = 0; [L13] found = 0 [L14] COND TRUE j < l2 && !found [L15] A[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 86.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.15 ms. Allocated memory is still 142.6 MB. Free memory was 115.4 MB in the beginning and 120.1 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.45 ms. Allocated memory is still 142.6 MB. Free memory was 120.1 MB in the beginning and 118.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.71 ms. Allocated memory is still 142.6 MB. Free memory was 118.7 MB in the beginning and 117.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 472.80 ms. Allocated memory is still 142.6 MB. Free memory was 117.6 MB in the beginning and 97.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 420.44 ms. Allocated memory is still 142.6 MB. Free memory was 97.3 MB in the beginning and 120.3 MB in the end (delta: -22.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * Witness Printer took 46.95 ms. Allocated memory is still 142.6 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...