./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-ext-properties/list-ext_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_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/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 64c66cee5e197d422d57bcbd967acefa86ecac75 ............................................................................................................................................................................................................................................ 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 00:48:48,993 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 00:48:48,994 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 00:48:49,002 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 00:48:49,002 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 00:48:49,003 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 00:48:49,004 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 00:48:49,005 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 00:48:49,007 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 00:48:49,007 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 00:48:49,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 00:48:49,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 00:48:49,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 00:48:49,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 00:48:49,010 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 00:48:49,011 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 00:48:49,011 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 00:48:49,013 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 00:48:49,014 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 00:48:49,015 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 00:48:49,016 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 00:48:49,017 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 00:48:49,019 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 00:48:49,019 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 00:48:49,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 00:48:49,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 00:48:49,020 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 00:48:49,021 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 00:48:49,022 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 00:48:49,022 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 00:48:49,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 00:48:49,023 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 00:48:49,023 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 00:48:49,023 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 00:48:49,024 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 00:48:49,025 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 00:48:49,025 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 00:48:49,035 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 00:48:49,036 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 00:48:49,036 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 00:48:49,036 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 00:48:49,037 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 00:48:49,037 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 00:48:49,037 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 00:48:49,037 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 00:48:49,038 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 00:48:49,039 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 00:48:49,039 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 00:48:49,039 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 00:48:49,039 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 00:48:49,039 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 00:48:49,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 00:48:49,040 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 00:48:49,040 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 00:48:49,040 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 00:48:49,040 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 00:48:49,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 00:48:49,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 00:48:49,040 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_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/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 -> 64c66cee5e197d422d57bcbd967acefa86ecac75 [2018-11-10 00:48:49,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 00:48:49,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 00:48:49,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 00:48:49,071 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 00:48:49,072 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 00:48:49,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/../../sv-benchmarks/c/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i [2018-11-10 00:48:49,107 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/data/e3f510e7d/bcf2582b718849618800590004def226/FLAG9c4739e83 [2018-11-10 00:48:49,538 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 00:48:49,538 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/sv-benchmarks/c/list-ext-properties/list-ext_false-unreach-call_false-valid-deref.i [2018-11-10 00:48:49,544 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/data/e3f510e7d/bcf2582b718849618800590004def226/FLAG9c4739e83 [2018-11-10 00:48:49,553 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/data/e3f510e7d/bcf2582b718849618800590004def226 [2018-11-10 00:48:49,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 00:48:49,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 00:48:49,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 00:48:49,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 00:48:49,559 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 00:48:49,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb1b920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49, skipping insertion in model container [2018-11-10 00:48:49,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 00:48:49,593 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 00:48:49,760 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 00:48:49,765 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 00:48:49,792 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 00:48:49,823 INFO L193 MainTranslator]: Completed translation [2018-11-10 00:48:49,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49 WrapperNode [2018-11-10 00:48:49,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 00:48:49,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 00:48:49,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 00:48:49,824 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 00:48:49,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 00:48:49,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 00:48:49,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 00:48:49,896 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 00:48:49,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... [2018-11-10 00:48:49,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 00:48:49,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 00:48:49,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 00:48:49,915 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 00:48:49,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:48:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/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 00:48:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 00:48:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 00:48:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 00:48:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 00:48:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 00:48:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 00:48:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 00:48:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 00:48:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 00:48:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 00:48:50,333 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 00:48:50,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:48:50 BoogieIcfgContainer [2018-11-10 00:48:50,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 00:48:50,334 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 00:48:50,334 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 00:48:50,340 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 00:48:50,341 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:48:50" (1/1) ... [2018-11-10 00:48:50,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 00:48:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 00:48:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2018-11-10 00:48:50,373 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2018-11-10 00:48:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 00:48:50,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 00:48:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 00:48:50,450 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 00:48:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 00:48:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2018-11-10 00:48:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2018-11-10 00:48:50,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 00:48:50,457 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 00:48:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 00:48:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 00:48:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 00:48:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 00:48:50,540 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2018-11-10 00:48:50,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 12:48:50 ImpRootNode [2018-11-10 00:48:50,563 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 00:48:50,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 00:48:50,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 00:48:50,564 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 00:48:50,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:48:50" (3/4) ... [2018-11-10 00:48:50,566 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 00:48:50,597 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9ee9ddb2-25f8-4ab0-9969-329eb7cbf45b/bin-2019/ukojak/witness.graphml [2018-11-10 00:48:50,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 00:48:50,598 INFO L168 Benchmark]: Toolchain (without parser) took 1041.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -66.9 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-11-10 00:48:50,599 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 00:48:50,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.58 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 930.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 00:48:50,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 930.7 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-10 00:48:50,600 INFO L168 Benchmark]: Boogie Preprocessor took 18.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 00:48:50,600 INFO L168 Benchmark]: RCFGBuilder took 419.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2018-11-10 00:48:50,601 INFO L168 Benchmark]: CodeCheck took 229.34 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-10 00:48:50,601 INFO L168 Benchmark]: Witness Printer took 33.33 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 00:48:50,604 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, 64 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 74 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, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 662]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] int i = 0; [L628] int y = 0; [L629] EXPR, FCALL malloc(sizeof(struct node)) [L629] List a = (List) malloc(sizeof(struct node)); [L630] COND FALSE !(a == 0) [L631] List t; [L632] List p = a; [L633] i < 10 && __VERIFIER_nondet_int() [L633] i < 10 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 10 && __VERIFIER_nondet_int()) [L641] y < 10 && __VERIFIER_nondet_int() [L641] y < 10 && __VERIFIER_nondet_int() [L641] COND FALSE !(y < 10 && __VERIFIER_nondet_int()) [L649] FCALL p->h = 3 [L650] i = 0 [L651] y = 0 [L652] p = a [L653] EXPR, FCALL p->h [L653] COND FALSE !(p->h == 1) [L657] EXPR, FCALL p->h [L657] COND FALSE !(p->h == 2) [L661] EXPR, FCALL p->h [L661] COND TRUE p->h != 3 || (i + y) < 20 [L662] __VERIFIER_error() * 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.58 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 930.7 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 930.7 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 419.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. * CodeCheck took 229.34 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Witness Printer took 33.33 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...