./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.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_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/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 a6853fb9e064ccfef5e54a8bac94eb86beeed80f ................................................................................................................................................................................................................................................ 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 20:27:59,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:27:59,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:27:59,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:27:59,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:27:59,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:27:59,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:27:59,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:27:59,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:27:59,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:27:59,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:27:59,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:27:59,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:27:59,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:27:59,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:27:59,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:27:59,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:27:59,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:27:59,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:27:59,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:27:59,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:27:59,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:27:59,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:27:59,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:27:59,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:27:59,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:27:59,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:27:59,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:27:59,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:27:59,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:27:59,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:27:59,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:27:59,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:27:59,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:27:59,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:27:59,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:27:59,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:27:59,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:27:59,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:27:59,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:27:59,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:27:59,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 20:27:59,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:27:59,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:27:59,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:27:59,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:27:59,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:27:59,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:27:59,745 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:27:59,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:27:59,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:27:59,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:27:59,747 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:27:59,747 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:27:59,748 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:27:59,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:27:59,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:27:59,749 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:27:59,749 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:27:59,749 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:27:59,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:27:59,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:27:59,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:27:59,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:27:59,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:27:59,751 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:27:59,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:27:59,752 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_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6853fb9e064ccfef5e54a8bac94eb86beeed80f [2020-11-29 20:28:00,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:28:00,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:28:00,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:28:00,136 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:28:00,137 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:28:00,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2020-11-29 20:28:00,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/data/18e19b455/973316c4a9194d178afbcc4df46bc854/FLAG5ac82492b [2020-11-29 20:28:00,766 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:28:00,767 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2020-11-29 20:28:00,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/data/18e19b455/973316c4a9194d178afbcc4df46bc854/FLAG5ac82492b [2020-11-29 20:28:01,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/data/18e19b455/973316c4a9194d178afbcc4df46bc854 [2020-11-29 20:28:01,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:28:01,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:28:01,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:28:01,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:28:01,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:28:01,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f6f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01, skipping insertion in model container [2020-11-29 20:28:01,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:28:01,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:28:01,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:28:01,363 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:28:01,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:28:01,449 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:28:01,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01 WrapperNode [2020-11-29 20:28:01,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:28:01,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:28:01,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:28:01,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:28:01,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:28:01,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:28:01,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:28:01,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:28:01,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... [2020-11-29 20:28:01,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:28:01,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:28:01,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:28:01,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:28:01,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:28:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/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 20:28:01,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:28:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:28:01,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:28:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:28:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:28:01,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:28:02,351 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:28:02,351 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 20:28:02,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:28:02 BoogieIcfgContainer [2020-11-29 20:28:02,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:28:02,355 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:28:02,355 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:28:02,366 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:28:02,366 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:28:02" (1/1) ... [2020-11-29 20:28:02,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:28:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-11-29 20:28:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-11-29 20:28:02,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:28:02,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:02,616 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 20:28:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2020-11-29 20:28:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-11-29 20:28:02,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:28:02,651 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:02,735 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 20:28:02,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2020-11-29 20:28:02,902 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-11-29 20:28:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:28:02,905 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:03,048 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 20:28:03,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2020-11-29 20:28:03,481 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2020-11-29 20:28:03,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:28:03,481 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:03,580 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 20:28:03,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2020-11-29 20:28:03,846 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2020-11-29 20:28:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:28:03,847 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:03,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:03,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:03,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:03,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:04,020 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-29 20:28:04,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:28:04 ImpRootNode [2020-11-29 20:28:04,060 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:28:04,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:28:04,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:28:04,061 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:28:04,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:28:02" (3/4) ... [2020-11-29 20:28:04,064 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:28:04,116 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9e386adc-2c3c-4662-bd3d-8d0a230caa5a/bin/ukojak/witness.graphml [2020-11-29 20:28:04,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:28:04,119 INFO L168 Benchmark]: Toolchain (without parser) took 2992.31 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.6 MB in the beginning and 69.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:04,121 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 94.4 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:28:04,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.12 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 72.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:04,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.97 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 71.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:28:04,124 INFO L168 Benchmark]: Boogie Preprocessor took 32.65 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 69.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:04,126 INFO L168 Benchmark]: RCFGBuilder took 823.15 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 41.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:04,127 INFO L168 Benchmark]: CodeCheck took 1705.22 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 41.6 MB in the beginning and 72.0 MB in the end (delta: -30.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:28:04,128 INFO L168 Benchmark]: Witness Printer took 55.80 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 69.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:04,139 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: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 34 SDslu, 16 SDs, 0 SdLazy, 290 SolverSat, 92 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 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: 23]: 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 TRUE i < size [L23] EXPR b[i] [L23] a[i] = b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 94.4 MB. Free memory was 53.3 MB in the beginning and 53.3 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.12 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 72.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.97 ms. Allocated memory is still 94.4 MB. Free memory was 72.2 MB in the beginning and 71.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.65 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 69.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 823.15 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 41.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * CodeCheck took 1705.22 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 41.6 MB in the beginning and 72.0 MB in the end (delta: -30.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.80 ms. Allocated memory is still 113.2 MB. Free memory was 72.0 MB in the beginning and 69.9 MB in the end (delta: 2.1 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...