./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/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 3d5040117e2eabdebb8b19ac037d1eb680a830cf ...................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 19:26:54,879 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 19:26:54,880 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 19:26:54,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 19:26:54,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 19:26:54,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 19:26:54,890 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 19:26:54,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 19:26:54,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 19:26:54,894 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 19:26:54,894 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 19:26:54,894 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 19:26:54,895 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 19:26:54,896 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 19:26:54,896 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 19:26:54,898 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 19:26:54,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 19:26:54,900 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 19:26:54,901 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 19:26:54,903 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 19:26:54,904 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 19:26:54,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 19:26:54,907 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 19:26:54,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 19:26:54,907 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 19:26:54,908 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 19:26:54,908 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 19:26:54,910 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 19:26:54,910 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 19:26:54,911 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 19:26:54,911 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 19:26:54,912 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 19:26:54,912 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 19:26:54,912 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 19:26:54,914 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 19:26:54,914 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 19:26:54,914 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 19:26:54,925 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 19:26:54,926 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 19:26:54,926 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 19:26:54,926 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 19:26:54,927 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 19:26:54,928 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 19:26:54,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 19:26:54,928 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 19:26:54,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 19:26:54,928 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 19:26:54,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 19:26:54,929 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 19:26:54,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 19:26:54,929 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 19:26:54,929 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 19:26:54,929 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 19:26:54,929 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 19:26:54,929 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 19:26:54,930 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 19:26:54,930 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 19:26:54,930 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 19:26:54,930 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 19:26:54,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 19:26:54,930 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 19:26:54,930 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 19:26:54,931 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 19:26:54,931 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 19:26:54,931 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 19:26:54,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 19:26:54,931 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_4d6b5946-e4e9-40bf-a582-9ea6d744a373/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 -> 3d5040117e2eabdebb8b19ac037d1eb680a830cf [2018-11-18 19:26:54,958 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 19:26:54,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 19:26:54,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 19:26:54,973 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 19:26:54,973 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 19:26:54,974 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/../../sv-benchmarks/c/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i [2018-11-18 19:26:55,030 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/data/4490c89b8/8cd79a3c0fd1486aa5f8582beb535652/FLAGef42ab1d8 [2018-11-18 19:26:55,390 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 19:26:55,390 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/sv-benchmarks/c/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i [2018-11-18 19:26:55,394 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/data/4490c89b8/8cd79a3c0fd1486aa5f8582beb535652/FLAGef42ab1d8 [2018-11-18 19:26:55,406 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/data/4490c89b8/8cd79a3c0fd1486aa5f8582beb535652 [2018-11-18 19:26:55,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 19:26:55,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 19:26:55,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 19:26:55,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 19:26:55,414 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 19:26:55,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f003888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55, skipping insertion in model container [2018-11-18 19:26:55,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 19:26:55,439 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 19:26:55,557 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 19:26:55,565 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 19:26:55,576 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 19:26:55,587 INFO L195 MainTranslator]: Completed translation [2018-11-18 19:26:55,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55 WrapperNode [2018-11-18 19:26:55,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 19:26:55,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 19:26:55,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 19:26:55,589 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 19:26:55,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 19:26:55,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 19:26:55,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 19:26:55,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 19:26:55,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:55,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 19:26:55,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 19:26:55,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 19:26:55,638 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 19:26:55,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:26:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/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 19:26:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 19:26:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 19:26:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 19:26:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 19:26:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 19:26:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 19:26:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 19:26:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure append [2018-11-18 19:26:55,733 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2018-11-18 19:26:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 19:26:55,994 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 19:26:55,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:26:55 BoogieIcfgContainer [2018-11-18 19:26:55,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 19:26:55,995 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 19:26:55,996 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 19:26:56,006 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 19:26:56,007 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:26:55" (1/1) ... [2018-11-18 19:26:56,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 19:26:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 19:26:56,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-11-18 19:26:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-18 19:26:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 19:26:56,078 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 19:26:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 19:26:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 19:26:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 19:26:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 19:26:56,370 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2018-11-18 19:26:56,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 07:26:56 ImpRootNode [2018-11-18 19:26:56,416 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 19:26:56,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 19:26:56,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 19:26:56,417 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 19:26:56,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:26:55" (3/4) ... [2018-11-18 19:26:56,420 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 19:26:56,467 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4d6b5946-e4e9-40bf-a582-9ea6d744a373/bin-2019/ukojak/witness.graphml [2018-11-18 19:26:56,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 19:26:56,468 INFO L168 Benchmark]: Toolchain (without parser) took 1059.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 958.5 MB in the beginning and 1.0 GB in the end (delta: -77.3 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-11-18 19:26:56,470 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 19:26:56,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.47 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 19:26:56,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 1.0 GB. Free memory was 947.6 MB in the beginning and 944.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 19:26:56,471 INFO L168 Benchmark]: Boogie Preprocessor took 20.34 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 19:26:56,471 INFO L168 Benchmark]: RCFGBuilder took 357.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.9 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-18 19:26:56,472 INFO L168 Benchmark]: CodeCheck took 421.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-11-18 19:26:56,472 INFO L168 Benchmark]: Witness Printer took 50.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-11-18 19:26:56,475 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 2 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 1 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int i = 1; [L37] struct list *l,m; [L38] l = &m [L39] FCALL l->next = 0 [L40] FCALL l->n = 0 VAL [i=1] [L42] CALL, EXPR append(l, 1) VAL [i=1] [L25] struct list *new_el; [L27] CALL, EXPR allocate_memory() [L20] EXPR, FCALL malloc(8U) [L20] RET return malloc(8U); [L27] EXPR allocate_memory() [L27] new_el = allocate_memory() [L29] FCALL new_el->n = n [L30] FCALL new_el->next = l [L32] RET return new_el; [L42] EXPR append(l, 1) VAL [i=1] [L42] l = append(l, 1) [L43] CALL, EXPR append(l, 2) VAL [i=1] [L25] struct list *new_el; [L27] CALL, EXPR allocate_memory() [L20] EXPR, FCALL malloc(8U) [L20] RET return malloc(8U); [L27] EXPR allocate_memory() [L27] new_el = allocate_memory() [L29] FCALL new_el->n = n [L30] FCALL new_el->next = l [L32] RET return new_el; [L43] EXPR append(l, 2) VAL [i=1] [L43] l = append(l, 2) [L48] EXPR, FCALL l->next [L48] EXPR, FCALL l->next->next [L48] EXPR, FCALL l->next->next->n VAL [i=1] [L48] COND TRUE l->next->next->n == 0 [L48] CALL err() [L8] __VERIFIER_error() VAL [i=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.47 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 1.0 GB. Free memory was 947.6 MB in the beginning and 944.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.34 ms. Allocated memory is still 1.0 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 357.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.9 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * CodeCheck took 421.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...