./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes3_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes3_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/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 0.1.23-635dfa2 [2018-12-02 22:05:07,222 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:05:07,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:05:07,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:05:07,232 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:05:07,232 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:05:07,233 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:05:07,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:05:07,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:05:07,236 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:05:07,237 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:05:07,237 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:05:07,238 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:05:07,239 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:05:07,239 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:05:07,240 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:05:07,240 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:05:07,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:05:07,243 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:05:07,244 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:05:07,245 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:05:07,246 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:05:07,248 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:05:07,248 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:05:07,248 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:05:07,249 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:05:07,249 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:05:07,250 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:05:07,250 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:05:07,251 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:05:07,251 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:05:07,252 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:05:07,252 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:05:07,252 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:05:07,252 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:05:07,253 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:05:07,253 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-02 22:05:07,264 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:05:07,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:05:07,265 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 22:05:07,265 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 22:05:07,265 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:05:07,265 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:05:07,266 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 22:05:07,267 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 22:05:07,267 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 22:05:07,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:05:07,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:05:07,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 22:05:07,267 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:05:07,267 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:05:07,268 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 22:05:07,268 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:05:07,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/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 [2018-12-02 22:05:07,289 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:05:07,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:05:07,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:05:07,299 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:05:07,299 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:05:07,299 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/scopes3_false-valid-deref.c [2018-12-02 22:05:07,337 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/data/3bd1f14da/c46914f34d354711a016411c27abd779/FLAG519f197ce [2018-12-02 22:05:07,723 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:05:07,724 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/sv-benchmarks/c/memsafety-ext3/scopes3_false-valid-deref.c [2018-12-02 22:05:07,727 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/data/3bd1f14da/c46914f34d354711a016411c27abd779/FLAG519f197ce [2018-12-02 22:05:07,736 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/data/3bd1f14da/c46914f34d354711a016411c27abd779 [2018-12-02 22:05:07,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:05:07,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:05:07,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:05:07,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:05:07,741 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:05:07,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b368404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07, skipping insertion in model container [2018-12-02 22:05:07,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:05:07,755 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:05:07,851 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:05:07,858 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:05:07,869 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:05:07,878 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:05:07,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07 WrapperNode [2018-12-02 22:05:07,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:05:07,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:05:07,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:05:07,879 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:05:07,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:05:07,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:05:07,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:05:07,900 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:05:07,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... [2018-12-02 22:05:07,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:05:07,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:05:07,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:05:07,941 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:05:07,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:05:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/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 [2018-12-02 22:05:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 22:05:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:05:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:05:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:05:07,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 22:05:08,113 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:05:08,114 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 22:05:08,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:08 BoogieIcfgContainer [2018-12-02 22:05:08,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:05:08,114 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 22:05:08,115 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 22:05:08,123 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 22:05:08,124 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:08" (1/1) ... [2018-12-02 22:05:08,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:05:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-12-02 22:05:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-12-02 22:05:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 22:05:08,165 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-12-02 22:05:08,279 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-12-02 22:05:08,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 22:05:08,279 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-12-02 22:05:08,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-02 22:05:08,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 22:05:08,357 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:08,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2018-12-02 22:05:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-12-02 22:05:08,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 22:05:08,385 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-12-02 22:05:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-02 22:05:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 22:05:08,506 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:08,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-02 22:05:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-02 22:05:08,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 22:05:08,640 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 22:05:08,804 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 22:05:08,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 22:05:08,804 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:08,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-12-02 22:05:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-02 22:05:08,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 22:05:08,983 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:09,027 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-12-02 22:05:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-02 22:05:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 22:05:09,158 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:09,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:09,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-12-02 22:05:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-12-02 22:05:09,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-02 22:05:09,349 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:09,395 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-12-02 22:05:09,573 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-02 22:05:09,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 22:05:09,573 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:09,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-12-02 22:05:09,806 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-02 22:05:09,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 22:05:09,806 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:05:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:05:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 22:05:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2018-12-02 22:05:10,042 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-12-02 22:05:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 22:05:10,043 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 22:05:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:05:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:05:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:05:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:05:10,167 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2018-12-02 22:05:10,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:05:10 ImpRootNode [2018-12-02 22:05:10,186 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 22:05:10,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:05:10,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:05:10,186 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:05:10,186 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:05:08" (3/4) ... [2018-12-02 22:05:10,188 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 22:05:10,225 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4afe700f-e3db-4b51-83b5-b29e3311aa32/bin-2019/ukojak/witness.graphml [2018-12-02 22:05:10,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:05:10,226 INFO L168 Benchmark]: Toolchain (without parser) took 2487.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.3 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -80.4 MB). Peak memory consumption was 130.9 MB. Max. memory is 11.5 GB. [2018-12-02 22:05:10,227 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:05:10,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.43 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 22:05:10,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.67 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:05:10,228 INFO L168 Benchmark]: Boogie Preprocessor took 41.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-02 22:05:10,229 INFO L168 Benchmark]: RCFGBuilder took 172.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-12-02 22:05:10,229 INFO L168 Benchmark]: CodeCheck took 2071.14 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.8 MB). Peak memory consumption was 149.0 MB. Max. memory is 11.5 GB. [2018-12-02 22:05:10,230 INFO L168 Benchmark]: Witness Printer took 39.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:05:10,232 INFO L336 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, 15 locations, 5 error locations. UNSAFE Result, 2.0s OverallTime, 13 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11264 SDtfs, 2044 SDslu, 0 SDs, 0 SdLazy, 39400 SolverSat, 15868 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1039 GetRequests, 893 SyntacticMatches, 64 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2290 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 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 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.43 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.67 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 172.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 2071.14 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.8 MB). Peak memory consumption was 149.0 MB. Max. memory is 11.5 GB. * Witness Printer took 39.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...