./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-01_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-01_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/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 b7feccaf382e9f358fe7bd48bccc9b98dfa2aebd ................................................................................................................................................................................................................................................................................................................................ 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 0.1.23-635dfa2 [2018-12-09 11:04:23,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:04:23,844 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:04:23,850 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:04:23,850 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:04:23,851 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:04:23,851 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:04:23,852 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:04:23,853 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:04:23,853 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:04:23,854 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:04:23,854 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:04:23,854 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:04:23,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:04:23,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:04:23,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:04:23,856 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:04:23,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:04:23,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:04:23,858 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:04:23,859 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:04:23,859 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:04:23,860 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:04:23,860 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:04:23,861 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:04:23,861 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:04:23,861 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:04:23,862 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:04:23,862 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:04:23,863 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:04:23,863 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:04:23,863 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:04:23,863 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:04:23,863 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:04:23,864 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:04:23,864 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:04:23,864 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 11:04:23,871 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:04:23,871 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:04:23,872 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:04:23,872 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 11:04:23,872 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 11:04:23,872 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 11:04:23,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:04:23,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 11:04:23,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:04:23,873 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 11:04:23,874 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 11:04:23,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:04:23,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 11:04:23,874 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_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/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 -> b7feccaf382e9f358fe7bd48bccc9b98dfa2aebd [2018-12-09 11:04:23,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:04:23,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:04:23,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:04:23,900 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:04:23,901 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:04:23,901 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-01_false-unreach-call_false-valid-memcleanup.i [2018-12-09 11:04:23,935 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/data/47a578c6f/f0b07033ab3042e69307d70f32a4dfa3/FLAG68be5ad3c [2018-12-09 11:04:24,312 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:04:24,313 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/sv-benchmarks/c/forester-heap/dll-01_false-unreach-call_false-valid-memcleanup.i [2018-12-09 11:04:24,319 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/data/47a578c6f/f0b07033ab3042e69307d70f32a4dfa3/FLAG68be5ad3c [2018-12-09 11:04:24,686 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/data/47a578c6f/f0b07033ab3042e69307d70f32a4dfa3 [2018-12-09 11:04:24,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:04:24,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:04:24,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:04:24,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:04:24,698 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:04:24,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:24,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211e4e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24, skipping insertion in model container [2018-12-09 11:04:24,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:24,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:04:24,737 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:04:24,910 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:04:24,915 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:04:24,976 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:04:24,995 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:04:24,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24 WrapperNode [2018-12-09 11:04:24,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:04:24,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:04:24,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:04:24,996 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:04:25,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:04:25,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:04:25,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:04:25,023 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:04:25,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... [2018-12-09 11:04:25,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:04:25,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:04:25,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:04:25,043 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:04:25,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:04:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/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 [2018-12-09 11:04:25,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:04:25,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 11:04:25,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-09 11:04:25,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:04:25,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:04:25,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:04:25,371 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:04:25,371 INFO L280 CfgBuilder]: Removed 34 assue(true) statements. [2018-12-09 11:04:25,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:04:25 BoogieIcfgContainer [2018-12-09 11:04:25,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:04:25,372 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 11:04:25,372 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 11:04:25,380 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 11:04:25,380 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:04:25" (1/1) ... [2018-12-09 11:04:25,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:04:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:25,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 74 states and 118 transitions. [2018-12-09 11:04:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2018-12-09 11:04:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 11:04:25,416 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:25,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2018-12-09 11:04:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2018-12-09 11:04:25,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 11:04:25,529 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 70 states and 108 transitions. [2018-12-09 11:04:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2018-12-09 11:04:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 11:04:25,584 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:25,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2018-12-09 11:04:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2018-12-09 11:04:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 11:04:25,604 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:25,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:25,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 70 states and 102 transitions. [2018-12-09 11:04:25,822 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 102 transitions. [2018-12-09 11:04:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 11:04:25,822 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 74 states and 109 transitions. [2018-12-09 11:04:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2018-12-09 11:04:25,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 11:04:25,893 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:25,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2018-12-09 11:04:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2018-12-09 11:04:25,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 11:04:25,958 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:26,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 74 states and 105 transitions. [2018-12-09 11:04:26,004 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2018-12-09 11:04:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 11:04:26,005 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2018-12-09 11:04:26,059 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2018-12-09 11:04:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 11:04:26,062 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:26,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 74 states and 100 transitions. [2018-12-09 11:04:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2018-12-09 11:04:26,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 11:04:26,091 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:26,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 72 states and 96 transitions. [2018-12-09 11:04:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 96 transitions. [2018-12-09 11:04:26,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 11:04:26,163 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:04:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 83 states and 112 transitions. [2018-12-09 11:04:27,764 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2018-12-09 11:04:27,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 11:04:27,765 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:04:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 11:04:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 11:04:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 81 states and 110 transitions. [2018-12-09 11:04:27,793 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2018-12-09 11:04:27,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 11:04:27,793 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 11:04:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:04:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:04:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:04:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:04:27,900 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2018-12-09 11:04:27,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 11:04:27 ImpRootNode [2018-12-09 11:04:27,929 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 11:04:27,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:04:27,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:04:27,930 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:04:27,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:04:25" (3/4) ... [2018-12-09 11:04:27,932 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 11:04:27,976 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0ce937b5-ac22-4b3a-900c-2d2b21c1edce/bin-2019/ukojak/witness.graphml [2018-12-09 11:04:27,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:04:27,978 INFO L168 Benchmark]: Toolchain (without parser) took 3287.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 950.6 MB in the beginning and 873.9 MB in the end (delta: 76.7 MB). Peak memory consumption was 280.2 MB. Max. memory is 11.5 GB. [2018-12-09 11:04:27,979 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:04:27,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-12-09 11:04:27,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.31 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:04:27,981 INFO L168 Benchmark]: Boogie Preprocessor took 19.21 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:04:27,981 INFO L168 Benchmark]: RCFGBuilder took 329.06 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: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. [2018-12-09 11:04:27,982 INFO L168 Benchmark]: CodeCheck took 2557.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 879.2 MB in the end (delta: 178.8 MB). Peak memory consumption was 253.8 MB. Max. memory is 11.5 GB. [2018-12-09 11:04:27,982 INFO L168 Benchmark]: Witness Printer took 47.11 ms. Allocated memory is still 1.2 GB. Free memory was 879.2 MB in the beginning and 873.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:04:27,985 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, 83 locations, 13 error locations. UNSAFE Result, 2.5s OverallTime, 13 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25646 SDtfs, 8600 SDslu, 7304 SDs, 0 SdLazy, 33150 SolverSat, 15846 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1199 GetRequests, 1126 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1494 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 18995 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 1/1 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: 1029]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* list = malloc(sizeof(SLL)); [L993] list->next = ((void*)0) [L994] list->prev = ((void*)0) [L995] COND FALSE !(!(list != ((void*)0))) [L995] COND FALSE !(__VERIFIER_nondet_int()) [L995] list->inner = malloc(sizeof(SLL)) [L995] EXPR list->inner [L995] list->inner->next = ((void*)0) [L995] EXPR list->inner [L995] list->inner->inner = ((void*)0) [L995] EXPR list->inner [L995] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L995] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L997] SLL* end = list; [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1011] end = ((void*)0) [L1012] end = list [L1015] COND FALSE !(!(((void*)0) != end)) [L1017] COND TRUE ((void*)0) != end [L1019] int len = 0; [L1020] EXPR end->inner [L1020] SLL* inner = end->inner; [L1021] COND TRUE ((void*)0) != inner [L1023] COND TRUE len == 0 [L1024] len = 1 [L1027] COND FALSE !(!(((void*)0) != inner)) [L1028] EXPR inner->inner [L1028] COND FALSE !(!(((void*)0) == inner->inner)) [L1029] EXPR inner->next [L1029] COND TRUE !(((void*)0) != inner->next) [L1029] __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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.31 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.21 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 329.06 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: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 11.5 GB. * CodeCheck took 2557.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 879.2 MB in the end (delta: 178.8 MB). Peak memory consumption was 253.8 MB. Max. memory is 11.5 GB. * Witness Printer took 47.11 ms. Allocated memory is still 1.2 GB. Free memory was 879.2 MB in the beginning and 873.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...