./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_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/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 [2020-11-28 04:36:39,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:36:39,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:36:39,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:36:39,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:36:39,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:36:39,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:36:39,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:36:39,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:36:39,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:36:39,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:36:39,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:36:39,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:36:39,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:36:39,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:36:39,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:36:39,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:36:39,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:36:39,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:36:39,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:36:39,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:36:39,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:36:39,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:36:39,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:36:39,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:36:39,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:36:39,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:36:39,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:36:39,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:36:39,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:36:39,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:36:39,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:36:39,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:36:39,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:36:39,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:36:39,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:36:39,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:36:39,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:36:39,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:36:39,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:36:39,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:36:39,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:36:39,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:36:39,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:36:39,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:36:39,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:36:39,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:36:39,233 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:36:39,233 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:36:39,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:36:39,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:36:39,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:36:39,239 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:36:39,239 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:36:39,240 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:36:39,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:36:39,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:36:39,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:36:39,240 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:36:39,241 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:36:39,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:36:39,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:36:39,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:36:39,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:36:39,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:36:39,242 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:36:39,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:36:39,243 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_2e7df0ea-2768-40c9-af58-427652569bd5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 639853f2f40cff84155fe09902eff2b5a20185f5 [2020-11-28 04:36:39,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:36:39,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:36:39,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:36:39,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:36:39,554 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:36:39,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2020-11-28 04:36:39,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/data/4ab50306a/7f47e953e324446d901fd37d393a8fa6/FLAGb141e30ca [2020-11-28 04:36:40,127 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:36:40,127 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2020-11-28 04:36:40,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/data/4ab50306a/7f47e953e324446d901fd37d393a8fa6/FLAGb141e30ca [2020-11-28 04:36:40,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/data/4ab50306a/7f47e953e324446d901fd37d393a8fa6 [2020-11-28 04:36:40,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:36:40,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:36:40,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:40,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:36:40,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:36:40,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5b3e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40, skipping insertion in model container [2020-11-28 04:36:40,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:36:40,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:36:40,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:40,726 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:36:40,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:40,758 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:36:40,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40 WrapperNode [2020-11-28 04:36:40,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:40,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:40,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:36:40,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:36:40,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:40,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:36:40,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:36:40,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:36:40,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... [2020-11-28 04:36:40,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:36:40,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:36:40,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:36:40,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:36:40,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/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 04:36:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:36:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:36:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:36:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:36:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:36:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:36:41,543 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:36:41,544 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 04:36:41,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:41 BoogieIcfgContainer [2020-11-28 04:36:41,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:36:41,547 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:36:41,547 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:36:41,555 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:36:41,555 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:41" (1/1) ... [2020-11-28 04:36:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:36:41,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-11-28 04:36:41,596 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-11-28 04:36:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:36:41,599 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:41,731 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 04:36:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2020-11-28 04:36:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-11-28 04:36:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:36:41,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:41,878 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 04:36:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:41,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2020-11-28 04:36:41,919 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-11-28 04:36:41,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:36:41,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:42,038 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 04:36:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:42,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2020-11-28 04:36:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-11-28 04:36:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:36:42,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:42,181 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 04:36:42,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2020-11-28 04:36:42,447 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-28 04:36:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:36:42,448 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:42,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:42,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:42,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:42,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:42,609 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-28 04:36:42,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:36:42 ImpRootNode [2020-11-28 04:36:42,641 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:36:42,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:36:42,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:36:42,642 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:36:42,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:41" (3/4) ... [2020-11-28 04:36:42,648 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:36:42,729 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e7df0ea-2768-40c9-af58-427652569bd5/bin/ukojak/witness.graphml [2020-11-28 04:36:42,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:36:42,736 INFO L168 Benchmark]: Toolchain (without parser) took 2227.64 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 66.7 MB in the beginning and 82.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:42,740 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 74.2 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:42,741 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.39 ms. Allocated memory is still 100.7 MB. Free memory was 66.7 MB in the beginning and 78.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:42,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.44 ms. Allocated memory is still 100.7 MB. Free memory was 78.1 MB in the beginning and 76.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:42,743 INFO L168 Benchmark]: Boogie Preprocessor took 45.88 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 74.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:42,743 INFO L168 Benchmark]: RCFGBuilder took 673.88 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 47.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:42,744 INFO L168 Benchmark]: CodeCheck took 1094.12 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 46.6 MB in the beginning and 84.7 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:42,745 INFO L168 Benchmark]: Witness Printer took 87.72 ms. Allocated memory is still 125.8 MB. Free memory was 83.9 MB in the beginning and 82.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:42,749 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: 1.0s, 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, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s 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 0.24 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 74.2 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.39 ms. Allocated memory is still 100.7 MB. Free memory was 66.7 MB in the beginning and 78.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.44 ms. Allocated memory is still 100.7 MB. Free memory was 78.1 MB in the beginning and 76.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.88 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 74.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 673.88 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 47.1 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * CodeCheck took 1094.12 ms. Allocated memory was 100.7 MB in the beginning and 125.8 MB in the end (delta: 25.2 MB). Free memory was 46.6 MB in the beginning and 84.7 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 87.72 ms. Allocated memory is still 125.8 MB. Free memory was 83.9 MB in the beginning and 82.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...