./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f270b702de634d3ad2ee5a400388c6410a4cf10 ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:01:52,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:01:52,456 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:01:52,462 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:01:52,462 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:01:52,463 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:01:52,464 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:01:52,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:01:52,466 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:01:52,467 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:01:52,467 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:01:52,467 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:01:52,468 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:01:52,469 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:01:52,469 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:01:52,470 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:01:52,470 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:01:52,471 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:01:52,472 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:01:52,474 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:01:52,474 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:01:52,475 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:01:52,477 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:01:52,477 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:01:52,477 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:01:52,477 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:01:52,478 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:01:52,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:01:52,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:01:52,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:01:52,479 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:01:52,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:01:52,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:01:52,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:01:52,480 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:01:52,481 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:01:52,481 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 13:01:52,488 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:01:52,488 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:01:52,488 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:01:52,488 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:01:52,489 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:01:52,489 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:01:52,489 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:01:52,489 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:01:52,489 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:01:52,489 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:01:52,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:01:52,489 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:01:52,490 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:01:52,490 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:01:52,490 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:01:52,490 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:01:52,490 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:01:52,490 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 13:01:52,490 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 13:01:52,491 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:01:52,491 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:01:52,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 13:01:52,491 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:01:52,491 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:01:52,491 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:01:52,491 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 13:01:52,492 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:01:52,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:01:52,492 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/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 ! call(__VERIFIER_error())) ) 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 -> 1f270b702de634d3ad2ee5a400388c6410a4cf10 [2018-11-10 13:01:52,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:01:52,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:01:52,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:01:52,528 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:01:52,528 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:01:52,529 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-11-10 13:01:52,570 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/data/ed5fe30c2/d0f17857c4db4e67b2234c25e12d7ddd/FLAG3a4b45e57 [2018-11-10 13:01:53,011 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:01:53,012 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-11-10 13:01:53,019 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/data/ed5fe30c2/d0f17857c4db4e67b2234c25e12d7ddd/FLAG3a4b45e57 [2018-11-10 13:01:53,027 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/data/ed5fe30c2/d0f17857c4db4e67b2234c25e12d7ddd [2018-11-10 13:01:53,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:01:53,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:01:53,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:01:53,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:01:53,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:01:53,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4943cf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53, skipping insertion in model container [2018-11-10 13:01:53,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:01:53,078 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:01:53,260 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:01:53,265 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:01:53,291 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:01:53,323 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:01:53,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53 WrapperNode [2018-11-10 13:01:53,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:01:53,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:01:53,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:01:53,324 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:01:53,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:01:53,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:01:53,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:01:53,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:01:53,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... [2018-11-10 13:01:53,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:01:53,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:01:53,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:01:53,419 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:01:53,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/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 [2018-11-10 13:01:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 13:01:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 13:01:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 13:01:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 13:01:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 13:01:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 13:01:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:01:53,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:01:54,037 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:01:54,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:01:54 BoogieIcfgContainer [2018-11-10 13:01:54,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:01:54,038 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 13:01:54,038 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 13:01:54,047 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 13:01:54,047 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:01:54" (1/1) ... [2018-11-10 13:01:54,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:01:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 13:01:54,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2018-11-10 13:01:54,076 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2018-11-10 13:01:54,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 13:01:54,078 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 13:01:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:01:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:01:54,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 13:01:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-11-10 13:01:54,174 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-11-10 13:01:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 13:01:54,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 13:01:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:01:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:01:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 13:01:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2018-11-10 13:01:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-11-10 13:01:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 13:01:54,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 13:01:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:01:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:01:54,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 13:01:54,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 32 states and 42 transitions. [2018-11-10 13:01:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2018-11-10 13:01:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 13:01:54,709 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 13:01:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:01:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:01:55,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 13:01:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2018-11-10 13:01:55,267 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2018-11-10 13:01:55,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 13:01:55,269 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 13:01:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:01:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:01:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 13:01:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2018-11-10 13:01:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2018-11-10 13:01:55,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 13:01:55,891 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 13:01:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:01:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:01:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:01:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:01:55,952 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-11-10 13:01:55,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 01:01:55 ImpRootNode [2018-11-10 13:01:55,976 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 13:01:55,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:01:55,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:01:55,976 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:01:55,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:01:54" (3/4) ... [2018-11-10 13:01:55,979 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 13:01:56,016 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_03a382cf-fcdf-4fbf-ad6d-b75c1cedc91c/bin-2019/ukojak/witness.graphml [2018-11-10 13:01:56,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:01:56,017 INFO L168 Benchmark]: Toolchain (without parser) took 2986.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -125.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:01:56,018 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-10 13:01:56,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.57 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:01:56,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:01:56,019 INFO L168 Benchmark]: Boogie Preprocessor took 21.41 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:01:56,020 INFO L168 Benchmark]: RCFGBuilder took 618.77 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: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:01:56,020 INFO L168 Benchmark]: CodeCheck took 1937.66 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: -22.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:01:56,021 INFO L168 Benchmark]: Witness Printer took 40.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:01:56,023 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, 78 locations, 3 error locations. UNSAFE Result, 1.8s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 264 SDtfs, 236 SDslu, 340 SDs, 0 SdLazy, 408 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 396 GetRequests, 355 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 4024 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/8 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: 1040]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L994] EXPR, FCALL malloc(sizeof(SLL)) [L994] SLL* list = malloc(sizeof(SLL)); [L995] FCALL list->next = ((void*)0) [L996] FCALL list->prev = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1025] end = ((void*)0) [L1026] end = list [L1029] COND FALSE !(!(((void*)0) != end)) [L1029] COND FALSE !(0) [L1030] EXPR, FCALL end->colour [L1030] COND FALSE !(!(BLACK == end->colour)) [L1030] COND FALSE !(0) [L1032] COND TRUE ((void*)0) != end [L1034] EXPR, FCALL end->colour [L1034] COND FALSE !(RED == end->colour) [L1040] EXPR, FCALL end->next [L1040] COND TRUE !(end->next) [L1040] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 291.57 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.41 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 618.77 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: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. * CodeCheck took 1937.66 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: -22.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 40.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...