./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/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_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/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 0.1.23-1dbac8b [2018-11-10 11:48:05,971 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:48:05,972 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:48:05,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:48:05,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:48:05,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:48:05,982 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:48:05,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:48:05,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:48:05,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:48:05,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:48:05,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:48:05,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:48:05,987 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:48:05,988 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:48:05,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:48:05,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:48:05,990 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:48:05,992 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:48:05,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:48:05,993 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:48:05,994 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:48:05,995 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:48:05,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:48:05,996 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:48:05,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:48:05,997 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:48:05,997 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:48:05,998 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:48:05,999 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:48:05,999 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:48:06,000 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:48:06,000 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:48:06,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:48:06,001 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:48:06,001 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:48:06,002 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 11:48:06,009 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:48:06,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:48:06,010 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:48:06,010 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:48:06,011 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:48:06,011 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:48:06,011 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:48:06,011 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:48:06,012 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:48:06,012 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:48:06,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:48:06,012 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:48:06,012 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:48:06,012 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:48:06,013 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:48:06,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:48:06,013 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:48:06,013 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 11:48:06,013 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 11:48:06,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:48:06,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:48:06,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 11:48:06,014 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:48:06,014 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:48:06,014 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:48:06,014 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 11:48:06,014 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:48:06,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:48:06,015 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_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/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 [2018-11-10 11:48:06,041 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:48:06,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:48:06,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:48:06,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:48:06,056 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:48:06,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/../../sv-benchmarks/c/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i [2018-11-10 11:48:06,110 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/data/002d6fa2a/c0c0f4ea2dc34cf99a550db848d940a8/FLAGf4c3ceaeb [2018-11-10 11:48:06,488 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:48:06,489 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/sv-benchmarks/c/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i [2018-11-10 11:48:06,494 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/data/002d6fa2a/c0c0f4ea2dc34cf99a550db848d940a8/FLAGf4c3ceaeb [2018-11-10 11:48:06,508 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/data/002d6fa2a/c0c0f4ea2dc34cf99a550db848d940a8 [2018-11-10 11:48:06,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:48:06,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:48:06,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:06,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:48:06,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:48:06,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11661478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06, skipping insertion in model container [2018-11-10 11:48:06,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:48:06,549 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:48:06,675 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:06,684 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:48:06,698 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:48:06,712 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:48:06,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06 WrapperNode [2018-11-10 11:48:06,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:48:06,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:48:06,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:48:06,714 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:48:06,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:48:06,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:48:06,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:48:06,744 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:48:06,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... [2018-11-10 11:48:06,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:48:06,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:48:06,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:48:06,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:48:06,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:48:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/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 11:48:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 11:48:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 11:48:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 11:48:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 11:48:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:48:06,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:48:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure append [2018-11-10 11:48:06,848 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2018-11-10 11:48:07,168 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:48:07,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:07 BoogieIcfgContainer [2018-11-10 11:48:07,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:48:07,169 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 11:48:07,169 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 11:48:07,180 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 11:48:07,180 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:07" (1/1) ... [2018-11-10 11:48:07,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:48:07,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 11:48:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-11-10 11:48:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-10 11:48:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 11:48:07,233 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 11:48:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:48:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:48:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:48:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:48:07,479 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2018-11-10 11:48:07,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 11:48:07 ImpRootNode [2018-11-10 11:48:07,509 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 11:48:07,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:48:07,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:48:07,509 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:48:07,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:48:07" (3/4) ... [2018-11-10 11:48:07,512 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 11:48:07,547 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_54dea6ed-dfba-45d2-83d5-bed9cd24eb8a/bin-2019/ukojak/witness.graphml [2018-11-10 11:48:07,547 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:48:07,547 INFO L168 Benchmark]: Toolchain (without parser) took 1035.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -118.9 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:07,549 INFO L168 Benchmark]: CDTParser took 0.17 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 11:48:07,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:07,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.56 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:07,550 INFO L168 Benchmark]: Boogie Preprocessor took 15.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:48:07,550 INFO L168 Benchmark]: RCFGBuilder took 408.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:07,550 INFO L168 Benchmark]: CodeCheck took 339.70 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:07,551 INFO L168 Benchmark]: Witness Printer took 37.99 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: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:48:07,553 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, 30 locations, 1 error locations. UNSAFE Result, 0.2s 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] CALL, EXPR l->next->next->n [L48] RET, EXPR l->next->next->n [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 0.17 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 199.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 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 30.56 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 408.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * CodeCheck took 339.70 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 37.99 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: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...