./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/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 7efcb16e512d7de15a71f6cd895dcd8493c4b646 ..................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 18:24:14,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:24:14,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:24:14,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:24:14,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:24:14,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:24:14,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:24:14,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:24:14,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:24:14,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:24:14,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:24:14,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:24:14,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:24:14,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:24:14,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:24:14,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:24:14,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:24:14,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:24:14,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:24:14,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:24:14,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:24:14,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:24:14,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:24:14,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:24:14,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:24:14,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:24:14,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:24:14,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:24:14,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:24:14,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:24:14,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:24:14,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:24:14,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:24:14,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:24:14,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:24:14,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:24:14,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:24:14,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:24:14,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:24:14,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:24:14,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:24:14,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 18:24:14,364 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:24:14,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:24:14,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:24:14,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:24:14,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:24:14,368 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:24:14,368 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:24:14,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:24:14,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:24:14,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:24:14,374 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 18:24:14,374 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 18:24:14,374 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 18:24:14,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:24:14,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:24:14,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:24:14,375 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:24:14,375 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:24:14,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:24:14,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:24:14,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:24:14,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:24:14,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:24:14,377 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:24:14,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:24:14,377 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_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7efcb16e512d7de15a71f6cd895dcd8493c4b646 [2020-12-01 18:24:14,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:24:14,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:24:14,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:24:14,775 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:24:14,776 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:24:14,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/../../sv-benchmarks/c/memsafety-ext3/scopes3.c [2020-12-01 18:24:14,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/data/84ea39cec/a5480b7aba9a459783a3a50791b66224/FLAG58085f127 [2020-12-01 18:24:15,404 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:24:15,405 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/sv-benchmarks/c/memsafety-ext3/scopes3.c [2020-12-01 18:24:15,419 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/data/84ea39cec/a5480b7aba9a459783a3a50791b66224/FLAG58085f127 [2020-12-01 18:24:15,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/data/84ea39cec/a5480b7aba9a459783a3a50791b66224 [2020-12-01 18:24:15,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:24:15,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:24:15,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:24:15,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:24:15,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:24:15,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:24:15" (1/1) ... [2020-12-01 18:24:15,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e22cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:15, skipping insertion in model container [2020-12-01 18:24:15,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:24:15" (1/1) ... [2020-12-01 18:24:15,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:24:15,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:24:15,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:24:15,992 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:24:16,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:24:16,026 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:24:16,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16 WrapperNode [2020-12-01 18:24:16,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:24:16,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:24:16,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:24:16,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:24:16,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:24:16,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:24:16,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:24:16,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:24:16,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:24:16,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:24:16,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:24:16,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:24:16,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:24:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/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 [2020-12-01 18:24:16,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:24:16,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:24:16,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:24:16,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:24:16,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:24:16,587 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:24:16,587 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 18:24:16,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:24:16 BoogieIcfgContainer [2020-12-01 18:24:16,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:24:16,591 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:24:16,591 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:24:16,604 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:24:16,604 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:24:16" (1/1) ... [2020-12-01 18:24:16,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:24:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:16,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-12-01 18:24:16,670 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-12-01 18:24:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:24:16,673 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:16,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 18:24:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 18:24:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:24:16,878 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:17,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:17,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-01 18:24:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-01 18:24:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:24:17,065 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:17,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:17,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:17,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2020-12-01 18:24:17,164 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-12-01 18:24:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:24:17,164 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 18:24:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 18:24:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:24:17,405 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 18:24:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 18:24:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:24:17,761 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:18,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:18,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-12-01 18:24:18,137 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 18:24:18,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:24:18,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:18,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2020-12-01 18:24:18,515 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-12-01 18:24:18,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:24:18,517 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:18,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2020-12-01 18:24:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-12-01 18:24:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:24:18,998 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2020-12-01 18:24:19,513 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-12-01 18:24:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:24:19,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:19,667 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2020-12-01 18:24:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-12-01 18:24:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 18:24:20,017 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2020-12-01 18:24:20,506 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-12-01 18:24:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 18:24:20,507 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:24:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:24:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:24:21,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2020-12-01 18:24:21,047 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-12-01 18:24:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 18:24:21,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:24:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:24:21,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:24:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:24:21,134 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:24:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:24:21,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:24:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:24:21,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:24:21,736 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2020-12-01 18:24:21,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:24:21 ImpRootNode [2020-12-01 18:24:21,793 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:24:21,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:24:21,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:24:21,795 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:24:21,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:24:16" (3/4) ... [2020-12-01 18:24:21,799 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:24:21,896 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b1ae500e-08ef-46b3-b674-d6e2e6ce539f/bin/ukojak/witness.graphml [2020-12-01 18:24:21,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:24:21,899 INFO L168 Benchmark]: Toolchain (without parser) took 6137.70 ms. Allocated memory was 90.2 MB in the beginning and 146.8 MB in the end (delta: 56.6 MB). Free memory was 55.8 MB in the beginning and 89.8 MB in the end (delta: -34.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-12-01 18:24:21,910 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:24:21,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.58 ms. Allocated memory is still 90.2 MB. Free memory was 55.7 MB in the beginning and 68.4 MB in the end (delta: -12.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:24:21,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.24 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 66.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:24:21,912 INFO L168 Benchmark]: Boogie Preprocessor took 51.90 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 66.0 MB in the end (delta: 913.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:24:21,912 INFO L168 Benchmark]: RCFGBuilder took 455.08 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 53.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:24:21,913 INFO L168 Benchmark]: CodeCheck took 5201.62 ms. Allocated memory was 90.2 MB in the beginning and 146.8 MB in the end (delta: 56.6 MB). Free memory was 53.0 MB in the beginning and 91.9 MB in the end (delta: -39.0 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:24:21,913 INFO L168 Benchmark]: Witness Printer took 103.41 ms. Allocated memory is still 146.8 MB. Free memory was 91.9 MB in the beginning and 89.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:24:21,917 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, 11 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.1s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11264 SDtfs, 2044 SDslu, 0 SDs, 0 SdLazy, 39400 SolverSat, 15868 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1039 GetRequests, 893 SyntacticMatches, 64 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2290 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4432 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 0/285 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: 8]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L3] int i = 0; [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND TRUE i < 10 [L4] int a[10]; [L5] p = a [L6] p[0] = 1 [L3] i++ [L3] COND FALSE !(i < 10) [L8] p[0] = 2 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 90.2 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.58 ms. Allocated memory is still 90.2 MB. Free memory was 55.7 MB in the beginning and 68.4 MB in the end (delta: -12.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.24 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 66.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.90 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 66.0 MB in the end (delta: 913.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 455.08 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 53.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 5201.62 ms. Allocated memory was 90.2 MB in the beginning and 146.8 MB in the end (delta: 56.6 MB). Free memory was 53.0 MB in the beginning and 91.9 MB in the end (delta: -39.0 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Witness Printer took 103.41 ms. Allocated memory is still 146.8 MB. Free memory was 91.9 MB in the beginning and 89.8 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...