./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/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 6dcea98e309b9ccb2c2dc4a4f9353c6c61175172 ......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:15:10,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:15:10,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:15:10,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:15:10,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:15:10,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:15:10,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:15:10,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:15:10,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:15:10,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:15:10,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:15:10,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:15:10,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:15:10,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:15:10,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:15:10,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:15:10,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:15:10,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:15:10,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:15:10,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:15:10,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:15:10,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:15:10,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:15:10,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:15:10,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:15:10,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:15:10,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:15:10,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:15:10,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:15:10,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:15:10,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:15:10,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:15:10,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:15:10,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:15:10,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:15:10,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:15:10,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:15:10,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:15:10,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:15:10,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:15:10,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:15:10,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-10-22 10:15:10,909 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:15:10,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:15:10,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:15:10,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:15:10,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:15:10,911 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:15:10,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:15:10,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:15:10,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:15:10,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:15:10,912 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 10:15:10,912 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 10:15:10,912 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 10:15:10,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:15:10,913 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:15:10,913 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:15:10,913 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:15:10,913 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:15:10,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:15:10,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:15:10,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:10,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:15:10,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:15:10,915 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:15:10,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:15:10,915 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/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/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 -> 6dcea98e309b9ccb2c2dc4a4f9353c6c61175172 [2019-10-22 10:15:10,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:15:10,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:15:10,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:15:10,953 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:15:10,953 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:15:10,953 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/../../sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2019-10-22 10:15:11,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/data/749bd9200/683bd39d49d341f69f09b21d90f96d79/FLAG0cdef566e [2019-10-22 10:15:11,437 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:15:11,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/sv-benchmarks/c/array-memsafety/add_last_unsafe.i [2019-10-22 10:15:11,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/data/749bd9200/683bd39d49d341f69f09b21d90f96d79/FLAG0cdef566e [2019-10-22 10:15:11,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/data/749bd9200/683bd39d49d341f69f09b21d90f96d79 [2019-10-22 10:15:11,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:15:11,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:15:11,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:11,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:15:11,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:15:11,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5476c4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11, skipping insertion in model container [2019-10-22 10:15:11,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,475 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:15:11,505 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:15:11,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:11,824 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:15:11,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:11,904 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:15:11,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11 WrapperNode [2019-10-22 10:15:11,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:11,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:11,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:15:11,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:15:11,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:11,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:15:11,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:15:11,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:11,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... [2019-10-22 10:15:11,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:11,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:11,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:11,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:11,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/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 [2019-10-22 10:15:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 10:15:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 10:15:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:15:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:15:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:12,546 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:15:12,547 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 10:15:12,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:12 BoogieIcfgContainer [2019-10-22 10:15:12,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:15:12,548 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:15:12,548 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:15:12,558 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:15:12,559 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:12" (1/1) ... [2019-10-22 10:15:12,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:15:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2019-10-22 10:15:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-10-22 10:15:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:15:12,606 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:12,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2019-10-22 10:15:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-10-22 10:15:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:15:12,761 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2019-10-22 10:15:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2019-10-22 10:15:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:15:12,866 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:15:12,945 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-10-22 10:15:12,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:15:12 ImpRootNode [2019-10-22 10:15:12,967 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:15:12,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:15:12,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:15:12,968 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:15:12,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:12" (3/4) ... [2019-10-22 10:15:12,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:15:13,002 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4d9a979e-9b39-4c76-a856-b46b04a5342f/bin/ukojak/witness.graphml [2019-10-22 10:15:13,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:15:13,004 INFO L168 Benchmark]: Toolchain (without parser) took 1543.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 940.5 MB in the beginning and 1.0 GB in the end (delta: -102.4 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:13,005 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:13,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:13,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:13,007 INFO L168 Benchmark]: Boogie Preprocessor took 31.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:13,007 INFO L168 Benchmark]: RCFGBuilder took 561.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:13,008 INFO L168 Benchmark]: CodeCheck took 418.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:13,008 INFO L168 Benchmark]: Witness Printer took 35.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:13,011 INFO L335 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, 26 locations, 13 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 10 SDslu, 4 SDs, 0 SdLazy, 32 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND FALSE !(length < 1) [L516] int *arr = __builtin_alloca (length); [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 444.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 561.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * CodeCheck took 418.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Witness Printer took 35.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...