./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.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_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/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 74d770113cb1f1dff37024c2e31ce0944e8f2983 ........................................................................................................................................................................................................................... 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 [2020-11-29 23:56:06,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:56:06,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:56:06,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:56:06,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:56:06,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:56:06,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:56:06,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:56:06,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:56:06,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:56:06,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:56:06,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:56:06,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:56:06,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:56:06,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:56:06,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:56:06,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:56:06,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:56:06,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:56:06,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:56:06,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:56:06,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:56:06,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:56:06,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:56:06,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:56:06,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:56:06,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:56:06,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:56:06,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:56:06,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:56:06,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:56:06,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:56:06,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:56:06,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:56:06,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:56:06,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:56:06,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:56:06,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:56:06,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:56:06,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:56:06,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:56:06,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 23:56:06,899 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:56:06,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:56:06,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:56:06,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:56:06,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:56:06,902 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:56:06,903 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:56:06,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:56:06,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:56:06,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:56:06,904 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 23:56:06,905 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 23:56:06,905 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 23:56:06,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:56:06,906 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:56:06,906 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:56:06,906 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 23:56:06,907 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 23:56:06,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:56:06,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:56:06,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 23:56:06,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:56:06,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:56:06,908 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 23:56:06,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:56:06,909 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_f8403cd0-5689-4f65-89db-214c0ee5b0ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74d770113cb1f1dff37024c2e31ce0944e8f2983 [2020-11-29 23:56:07,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:56:07,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:56:07,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:56:07,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:56:07,193 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:56:07,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/../../sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c [2020-11-29 23:56:07,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/data/163978309/6b381840fad347a9946f18ed4046d22d/FLAG025ba03a4 [2020-11-29 23:56:07,801 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:56:07,803 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/sv-benchmarks/c/array-memsafety/selectionsort_unsafe.c [2020-11-29 23:56:07,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/data/163978309/6b381840fad347a9946f18ed4046d22d/FLAG025ba03a4 [2020-11-29 23:56:08,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/data/163978309/6b381840fad347a9946f18ed4046d22d [2020-11-29 23:56:08,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:56:08,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:56:08,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:56:08,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:56:08,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:56:08,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e9abc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08, skipping insertion in model container [2020-11-29 23:56:08,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:56:08,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:56:08,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:56:08,367 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:56:08,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:56:08,420 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:56:08,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08 WrapperNode [2020-11-29 23:56:08,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:56:08,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:56:08,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:56:08,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:56:08,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:56:08,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:56:08,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:56:08,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:56:08,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... [2020-11-29 23:56:08,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:56:08,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:56:08,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:56:08,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:56:08,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:56:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/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 [2020-11-29 23:56:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:56:08,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:56:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:56:08,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:56:09,055 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:56:09,055 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 23:56:09,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:56:09 BoogieIcfgContainer [2020-11-29 23:56:09,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:56:09,059 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 23:56:09,059 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 23:56:09,070 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 23:56:09,070 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:56:09" (1/1) ... [2020-11-29 23:56:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:56:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:56:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 24 states and 25 transitions. [2020-11-29 23:56:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-11-29 23:56:09,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 23:56:09,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:56:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:56:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:56:09,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 23:56:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2020-11-29 23:56:09,331 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-11-29 23:56:09,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 23:56:09,331 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 23:56:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:56:09,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:56:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:56:09,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:56:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:56:09,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:56:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:56:09,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:56:09,444 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-29 23:56:09,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 11:56:09 ImpRootNode [2020-11-29 23:56:09,469 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 23:56:09,470 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:56:09,470 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:56:09,470 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:56:09,471 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:56:09" (3/4) ... [2020-11-29 23:56:09,476 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:56:09,535 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f8403cd0-5689-4f65-89db-214c0ee5b0ef/bin/ukojak/witness.graphml [2020-11-29 23:56:09,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:56:09,541 INFO L168 Benchmark]: Toolchain (without parser) took 1363.29 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 55.7 MB in the beginning and 39.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:56:09,542 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 41.8 MB in the beginning and 41.8 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:56:09,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.88 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 55.4 MB in the beginning and 81.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:56:09,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 80.3 MB in the end (delta: 875.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:56:09,544 INFO L168 Benchmark]: Boogie Preprocessor took 47.37 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 79.1 MB in the end (delta: 609.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:56:09,545 INFO L168 Benchmark]: RCFGBuilder took 536.04 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 57.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:56:09,548 INFO L168 Benchmark]: CodeCheck took 409.97 ms. Allocated memory is still 102.8 MB. Free memory was 57.5 MB in the beginning and 41.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:56:09,549 INFO L168 Benchmark]: Witness Printer took 65.14 ms. Allocated memory is still 102.8 MB. Free memory was 41.3 MB in the beginning and 39.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:56:09,555 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, 24 locations, 13 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, 2 SDs, 0 SdLazy, 5 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: 12]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L23] int *a; [L24] int array_size = __VERIFIER_nondet_int(); [L5] int i; [L6] i = 0 [L6] COND TRUE i < array_size - 1 [L8] int j, min, temp; [L9] min = i [L10] j = i+1 [L10] COND TRUE j < array_size [L12] a[j] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 41.8 MB in the beginning and 41.8 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.88 ms. Allocated memory was 83.9 MB in the beginning and 102.8 MB in the end (delta: 18.9 MB). Free memory was 55.4 MB in the beginning and 81.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 80.3 MB in the end (delta: 875.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.37 ms. Allocated memory is still 102.8 MB. Free memory was 79.7 MB in the beginning and 79.1 MB in the end (delta: 609.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 536.04 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 57.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 409.97 ms. Allocated memory is still 102.8 MB. Free memory was 57.5 MB in the beginning and 41.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 65.14 ms. Allocated memory is still 102.8 MB. Free memory was 41.3 MB in the beginning and 39.9 MB in the end (delta: 1.5 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...