./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.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_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/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 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 0.2.0-a4ecdab [2020-11-30 01:16:10,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:16:10,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:16:10,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:16:10,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:16:10,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:16:10,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:16:10,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:16:10,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:16:10,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:16:10,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:16:10,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:16:10,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:16:10,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:16:10,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:16:10,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:16:10,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:16:10,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:16:10,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:16:10,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:16:10,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:16:10,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:16:10,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:16:10,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:16:10,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:16:10,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:16:10,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:16:10,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:16:10,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:16:10,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:16:10,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:16:10,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:16:10,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:16:10,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:16:10,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:16:10,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:16:10,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:16:10,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:16:10,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:16:10,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:16:10,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:16:10,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-30 01:16:11,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:16:11,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:16:11,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:16:11,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:16:11,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:16:11,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:16:11,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:16:11,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:16:11,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:16:11,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:16:11,057 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 01:16:11,058 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 01:16:11,058 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 01:16:11,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:16:11,059 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:16:11,059 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:16:11,059 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:16:11,060 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:16:11,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:16:11,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:16:11,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:16:11,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:16:11,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:16:11,062 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:16:11,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:16:11,063 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_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 639853f2f40cff84155fe09902eff2b5a20185f5 [2020-11-30 01:16:11,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:16:11,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:16:11,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:16:11,459 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:16:11,460 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:16:11,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2020-11-30 01:16:11,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/data/66f59def5/48a9d7bbfaab46afb8b698e4c0f75b45/FLAGeec0914ec [2020-11-30 01:16:12,282 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:16:12,283 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2020-11-30 01:16:12,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/data/66f59def5/48a9d7bbfaab46afb8b698e4c0f75b45/FLAGeec0914ec [2020-11-30 01:16:12,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/data/66f59def5/48a9d7bbfaab46afb8b698e4c0f75b45 [2020-11-30 01:16:12,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:16:12,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:16:12,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:12,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:16:12,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:16:12,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:12,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a62d5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:12, skipping insertion in model container [2020-11-30 01:16:12,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:16:12" (1/1) ... [2020-11-30 01:16:12,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:16:12,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:16:12,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:12,960 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:16:12,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:16:13,001 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:16:13,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13 WrapperNode [2020-11-30 01:16:13,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:16:13,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:13,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:16:13,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:16:13,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:16:13,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:16:13,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:16:13,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:16:13,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:16:13,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:16:13,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:16:13,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:16:13,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:16:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/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 [2020-11-30 01:16:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:16:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:16:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:16:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:16:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:16:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:16:13,968 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:16:13,968 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-30 01:16:13,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:13 BoogieIcfgContainer [2020-11-30 01:16:13,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:16:13,972 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:16:13,973 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:16:13,986 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:16:13,987 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:13" (1/1) ... [2020-11-30 01:16:13,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:16:14,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-11-30 01:16:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-11-30 01:16:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:16:14,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:14,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2020-11-30 01:16:14,314 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-11-30 01:16:14,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:16:14,315 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2020-11-30 01:16:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-11-30 01:16:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:16:14,457 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2020-11-30 01:16:14,711 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-11-30 01:16:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:16:14,712 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:16:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:16:15,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:16:15,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2020-11-30 01:16:15,216 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-30 01:16:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:16:15,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:16:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:15,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:15,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:15,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:16:15,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:16:15,384 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-30 01:16:15,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:16:15 ImpRootNode [2020-11-30 01:16:15,414 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:16:15,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:16:15,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:16:15,416 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:16:15,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:16:13" (3/4) ... [2020-11-30 01:16:15,419 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:16:15,466 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1e0f1184-d74b-4b10-a745-d4f8d6e945eb/bin/ukojak/witness.graphml [2020-11-30 01:16:15,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:16:15,470 INFO L168 Benchmark]: Toolchain (without parser) took 2800.36 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 63.2 MB in the beginning and 53.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:15,470 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 90.2 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:15,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.84 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 63.2 MB in the beginning and 98.3 MB in the end (delta: -35.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:15,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.20 ms. Allocated memory is still 119.5 MB. Free memory was 97.8 MB in the beginning and 96.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:15,473 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 95.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:16:15,474 INFO L168 Benchmark]: RCFGBuilder took 883.41 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 66.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:15,475 INFO L168 Benchmark]: CodeCheck took 1441.80 ms. Allocated memory is still 119.5 MB. Free memory was 66.9 MB in the beginning and 55.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:15,476 INFO L168 Benchmark]: Witness Printer took 51.99 ms. Allocated memory is still 119.5 MB. Free memory was 55.2 MB in the beginning and 53.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:16:15,481 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, 11 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 6 SDslu, 0 SDs, 0 SdLazy, 176 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 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 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 0.42 ms. Allocated memory is still 90.2 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.84 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 63.2 MB in the beginning and 98.3 MB in the end (delta: -35.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.20 ms. Allocated memory is still 119.5 MB. Free memory was 97.8 MB in the beginning and 96.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.71 ms. Allocated memory is still 119.5 MB. Free memory was 96.2 MB in the beginning and 95.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 883.41 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 66.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * CodeCheck took 1441.80 ms. Allocated memory is still 119.5 MB. Free memory was 66.9 MB in the beginning and 55.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Witness Printer took 51.99 ms. Allocated memory is still 119.5 MB. Free memory was 55.2 MB in the beginning and 53.8 MB in the end (delta: 1.3 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...