./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/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 1b1751fe95f9cf655681429038c1cde9e9c074e8 ................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 15:07:44,337 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:07:44,339 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:07:44,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:07:44,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:07:44,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:07:44,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:07:44,348 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:07:44,349 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:07:44,350 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:07:44,350 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:07:44,350 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:07:44,351 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:07:44,352 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:07:44,352 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:07:44,353 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:07:44,354 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:07:44,355 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:07:44,356 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:07:44,357 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:07:44,358 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:07:44,359 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:07:44,361 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:07:44,361 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:07:44,361 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:07:44,362 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:07:44,362 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:07:44,363 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:07:44,363 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:07:44,364 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:07:44,364 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:07:44,365 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:07:44,365 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:07:44,365 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:07:44,366 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:07:44,366 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:07:44,366 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 15:07:44,377 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:07:44,377 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:07:44,378 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:07:44,378 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:07:44,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:07:44,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:07:44,378 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:07:44,379 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:07:44,379 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:07:44,379 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:07:44,379 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 15:07:44,379 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 15:07:44,379 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 15:07:44,379 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:07:44,380 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:07:44,380 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:07:44,380 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:07:44,380 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:07:44,380 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:07:44,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:07:44,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:07:44,381 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:07:44,381 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:07:44,381 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:07:44,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:07:44,381 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_b1f4e407-f608-443f-a4da-b20b7c31a8b2/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 -> 1b1751fe95f9cf655681429038c1cde9e9c074e8 [2018-11-18 15:07:44,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:07:44,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:07:44,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:07:44,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:07:44,413 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:07:44,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-11-18 15:07:44,450 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/data/d96b7c767/420bfb375c7942a088d433aea104a2cd/FLAGf4b36385d [2018-11-18 15:07:44,781 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:07:44,781 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/sv-benchmarks/c/memsafety-ext3/getNumbers1_false-valid-deref.c [2018-11-18 15:07:44,786 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/data/d96b7c767/420bfb375c7942a088d433aea104a2cd/FLAGf4b36385d [2018-11-18 15:07:45,215 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/data/d96b7c767/420bfb375c7942a088d433aea104a2cd [2018-11-18 15:07:45,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:07:45,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:07:45,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:07:45,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:07:45,221 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:07:45,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b3a0dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45, skipping insertion in model container [2018-11-18 15:07:45,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:07:45,240 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:07:45,357 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:07:45,362 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:07:45,372 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:07:45,381 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:07:45,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45 WrapperNode [2018-11-18 15:07:45,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:07:45,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:07:45,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:07:45,382 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:07:45,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:07:45,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:07:45,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:07:45,405 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:07:45,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:07:45,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:07:45,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:07:45,419 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:07:45,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/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 [2018-11-18 15:07:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:07:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:07:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:07:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:07:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:07:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:07:45,668 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:07:45,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:07:45 BoogieIcfgContainer [2018-11-18 15:07:45,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:07:45,669 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:07:45,669 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:07:45,676 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:07:45,676 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:07:45" (1/1) ... [2018-11-18 15:07:45,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:07:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:45,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2018-11-18 15:07:45,704 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-11-18 15:07:45,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 15:07:45,705 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:45,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:45,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-11-18 15:07:45,838 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-18 15:07:45,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 15:07:45,839 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-11-18 15:07:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 15:07:46,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:07:46,027 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-11-18 15:07:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-18 15:07:46,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:07:46,361 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:07:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2018-11-18 15:07:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-18 15:07:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:07:46,380 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:46,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:46,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2018-11-18 15:07:46,541 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-18 15:07:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 15:07:46,541 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 22 states and 23 transitions. [2018-11-18 15:07:46,759 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-18 15:07:46,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 15:07:46,759 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:46,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:46,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2018-11-18 15:07:46,958 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-11-18 15:07:46,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:07:46,958 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2018-11-18 15:07:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-11-18 15:07:47,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 15:07:47,207 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:47,257 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:47,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 31 states and 32 transitions. [2018-11-18 15:07:47,457 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-11-18 15:07:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 15:07:47,458 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 34 states and 35 transitions. [2018-11-18 15:07:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-11-18 15:07:47,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 15:07:47,730 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:48,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:48,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 37 states and 38 transitions. [2018-11-18 15:07:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-11-18 15:07:48,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 15:07:48,009 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:48,061 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 40 states and 41 transitions. [2018-11-18 15:07:48,297 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-11-18 15:07:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 15:07:48,297 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:07:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-18 15:07:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-18 15:07:48,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 15:07:48,542 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:07:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:07:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:07:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:07:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:07:48,719 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 14 iterations. [2018-11-18 15:07:48,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:07:48 ImpRootNode [2018-11-18 15:07:48,752 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:07:48,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:07:48,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:07:48,752 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:07:48,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:07:45" (3/4) ... [2018-11-18 15:07:48,755 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 15:07:48,805 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b1f4e407-f608-443f-a4da-b20b7c31a8b2/bin-2019/ukojak/witness.graphml [2018-11-18 15:07:48,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:07:48,806 INFO L168 Benchmark]: Toolchain (without parser) took 3588.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 958.2 MB in the beginning and 984.9 MB in the end (delta: -26.7 MB). Peak memory consumption was 148.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:07:48,808 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:07:48,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.97 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:07:48,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.07 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:07:48,809 INFO L168 Benchmark]: Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:07:48,809 INFO L168 Benchmark]: RCFGBuilder took 249.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:07:48,810 INFO L168 Benchmark]: CodeCheck took 3083.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 38.8 MB). Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 127.0 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:07:48,811 INFO L168 Benchmark]: Witness Printer took 53.66 ms. Allocated memory is still 1.2 GB. Free memory was 989.7 MB in the beginning and 984.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:07:48,814 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, 22 locations, 5 error locations. UNSAFE Result, 3.0s OverallTime, 14 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33280 SDtfs, 46074 SDslu, 45048 SDs, 0 SdLazy, 97260 SolverSat, 41978 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1543 GetRequests, 1339 SyntacticMatches, 112 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2792 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 12717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 5/455 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: 22]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L22] FCALL "%d\n" [L19] CALL, EXPR getNumbers() [L8] EXPR, FCALL alloca(10 * sizeof(int)) [L8] int *array = alloca(10 * sizeof(int)); [L10] int i = 0; VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND TRUE i < 10 VAL ["%d\n"={11:0}] [L11] FCALL array[i] = i [L10] ++i VAL ["%d\n"={11:0}] [L10] COND FALSE !(i < 10) VAL ["%d\n"={11:0}] [L14] RET return array; [L19] EXPR getNumbers() [L19] int *numbers = getNumbers(); [L21] int i = 0; VAL ["%d\n"={11:0}] [L21] COND TRUE i < 10 [L22] FCALL numbers + i * 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.97 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 23.07 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.97 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 249.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * CodeCheck took 3083.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 38.8 MB). Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 127.0 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. * Witness Printer took 53.66 ms. Allocated memory is still 1.2 GB. Free memory was 989.7 MB in the beginning and 984.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...