./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/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 b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:49:02,592 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:49:02,593 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:49:02,599 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:49:02,599 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:49:02,600 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:49:02,601 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:49:02,602 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:49:02,604 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:49:02,604 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:49:02,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:49:02,605 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:49:02,606 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:49:02,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:49:02,607 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:49:02,608 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:49:02,608 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:49:02,609 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:49:02,611 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:49:02,612 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:49:02,613 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:49:02,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:49:02,614 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:49:02,614 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:49:02,614 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:49:02,615 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:49:02,615 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:49:02,616 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:49:02,616 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:49:02,617 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:49:02,617 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:49:02,618 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:49:02,618 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:49:02,618 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:49:02,619 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:49:02,619 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:49:02,619 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 10:49:02,626 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:49:02,627 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:49:02,627 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:49:02,627 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:49:02,627 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:49:02,628 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:49:02,628 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:49:02,629 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:49:02,629 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 10:49:02,629 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 10:49:02,629 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:49:02,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:49:02,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 10:49:02,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:49:02,629 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:49:02,630 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:49:02,630 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 10:49:02,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:49:02,630 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:49:02,630 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_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/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 -> b9633ec6dc7e01a7231c1be5ed310faef61ba6b0 [2018-11-18 10:49:02,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:49:02,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:49:02,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:49:02,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:49:02,667 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:49:02,668 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 10:49:02,713 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/data/53c483fb3/d3914951e21f4101ae9d18f51d50f43d/FLAGc3e238039 [2018-11-18 10:49:03,157 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:49:03,158 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-11-18 10:49:03,164 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/data/53c483fb3/d3914951e21f4101ae9d18f51d50f43d/FLAGc3e238039 [2018-11-18 10:49:03,172 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/data/53c483fb3/d3914951e21f4101ae9d18f51d50f43d [2018-11-18 10:49:03,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:49:03,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:49:03,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:49:03,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:49:03,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:49:03,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2995dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03, skipping insertion in model container [2018-11-18 10:49:03,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:49:03,216 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:49:03,414 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:49:03,419 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:49:03,448 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:49:03,518 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:49:03,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03 WrapperNode [2018-11-18 10:49:03,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:49:03,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:49:03,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:49:03,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:49:03,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:49:03,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:49:03,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:49:03,552 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:49:03,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... [2018-11-18 10:49:03,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:49:03,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:49:03,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:49:03,575 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:49:03,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:49:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 10:49:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:49:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:49:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:49:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 10:49:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 10:49:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:49:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:49:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:49:04,004 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:49:04,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:49:04 BoogieIcfgContainer [2018-11-18 10:49:04,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:49:04,005 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 10:49:04,005 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 10:49:04,013 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 10:49:04,013 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:49:04" (1/1) ... [2018-11-18 10:49:04,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:49:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:04,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 47 states and 74 transitions. [2018-11-18 10:49:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2018-11-18 10:49:04,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 10:49:04,046 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:04,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:04,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 47 states and 71 transitions. [2018-11-18 10:49:04,388 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 71 transitions. [2018-11-18 10:49:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 10:49:04,388 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:04,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 52 states and 76 transitions. [2018-11-18 10:49:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2018-11-18 10:49:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:49:04,553 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 50 states and 71 transitions. [2018-11-18 10:49:04,912 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 71 transitions. [2018-11-18 10:49:04,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:49:04,912 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 58 states and 80 transitions. [2018-11-18 10:49:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2018-11-18 10:49:05,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 10:49:05,418 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:05,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:06,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 68 states and 94 transitions. [2018-11-18 10:49:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2018-11-18 10:49:06,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 10:49:06,207 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:06,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:06,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 71 states and 95 transitions. [2018-11-18 10:49:06,509 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 95 transitions. [2018-11-18 10:49:06,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:49:06,510 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 10:49:07,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:07,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 82 states and 108 transitions. [2018-11-18 10:49:07,343 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 108 transitions. [2018-11-18 10:49:07,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 10:49:07,343 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:07,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:08,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 97 states and 134 transitions. [2018-11-18 10:49:08,893 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2018-11-18 10:49:08,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:49:08,894 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 110 states and 157 transitions. [2018-11-18 10:49:10,995 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 157 transitions. [2018-11-18 10:49:10,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:49:10,996 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 121 states and 179 transitions. [2018-11-18 10:49:13,807 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 179 transitions. [2018-11-18 10:49:13,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:49:13,808 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:14,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:14,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 123 states and 184 transitions. [2018-11-18 10:49:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 184 transitions. [2018-11-18 10:49:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 10:49:14,317 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:14,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 10:49:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 125 states and 187 transitions. [2018-11-18 10:49:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 187 transitions. [2018-11-18 10:49:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 10:49:14,616 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 154 states and 248 transitions. [2018-11-18 10:49:25,208 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 248 transitions. [2018-11-18 10:49:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 10:49:25,208 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:25,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 156 states and 252 transitions. [2018-11-18 10:49:25,901 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 252 transitions. [2018-11-18 10:49:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 10:49:25,901 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 158 states and 257 transitions. [2018-11-18 10:49:26,642 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 257 transitions. [2018-11-18 10:49:26,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 10:49:26,642 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:27,581 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 181 states and 300 transitions. [2018-11-18 10:49:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 300 transitions. [2018-11-18 10:49:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 10:49:35,393 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:36,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 185 states and 309 transitions. [2018-11-18 10:49:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 309 transitions. [2018-11-18 10:49:36,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 10:49:36,913 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:37,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 187 states and 314 transitions. [2018-11-18 10:49:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 314 transitions. [2018-11-18 10:49:37,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 10:49:37,991 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:49:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:49:39,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:49:39,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 189 states and 319 transitions. [2018-11-18 10:49:39,059 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 319 transitions. [2018-11-18 10:49:39,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 10:49:39,059 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:49:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:49:39,209 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 20 iterations. [2018-11-18 10:49:39,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 10:49:39 ImpRootNode [2018-11-18 10:49:39,247 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 10:49:39,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:49:39,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:49:39,248 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:49:39,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:49:04" (3/4) ... [2018-11-18 10:49:39,250 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 10:49:39,320 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e7b9dd01-a6f4-47e8-962b-0bcf3727bd44/bin-2019/ukojak/witness.graphml [2018-11-18 10:49:39,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:49:39,320 INFO L168 Benchmark]: Toolchain (without parser) took 36145.98 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 485.5 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -131.5 MB). Peak memory consumption was 354.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:49:39,322 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:49:39,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:49:39,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:49:39,323 INFO L168 Benchmark]: Boogie Preprocessor took 22.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:49:39,324 INFO L168 Benchmark]: RCFGBuilder took 430.26 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:49:39,324 INFO L168 Benchmark]: CodeCheck took 35242.05 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 351.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.4 MB). Peak memory consumption was 338.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:49:39,325 INFO L168 Benchmark]: Witness Printer took 72.11 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:49:39,329 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, 53 locations, 7 error locations. UNSAFE Result, 35.1s OverallTime, 20 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3506432 SDtfs, 4036536 SDslu, 6726572 SDs, 0 SdLazy, 10927300 SolverSat, 4982860 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3876 GetRequests, 3308 SyntacticMatches, 188 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70650 ImplicationChecksByTransitivity, 30.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 444 NumberOfCodeBlocks, 444 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 259452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 11/112 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: 1038]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L987] EXPR, FCALL malloc(sizeof(struct TSLL)) [L987] struct TSLL* null = malloc(sizeof(struct TSLL)); [L988] FCALL null->next = ((void*)0) [L989] FCALL null->prev = ((void*)0) [L990] FCALL null->colour = BLACK [L992] EXPR, FCALL malloc(sizeof(struct TSLL)) [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); [L993] FCALL list->next = null [L994] FCALL list->prev = null [L995] FCALL list->colour = BLACK [L997] struct TSLL* end = list; [L1000] COND TRUE __VERIFIER_nondet_int() [L1003] EXPR, FCALL malloc(sizeof(struct TSLL)) [L1003] FCALL end->next = malloc(sizeof(struct TSLL)) [L1004] EXPR, FCALL end->next [L1004] FCALL end->next->prev = end [L1005] EXPR, FCALL end->next [L1005] end = end->next [L1006] FCALL end->next = null [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL end->colour = RED [L1015] EXPR, FCALL malloc(sizeof(struct TSLL)) [L1015] FCALL end->next = malloc(sizeof(struct TSLL)) [L1016] EXPR, FCALL end->next [L1016] FCALL end->next->prev = end [L1017] EXPR, FCALL end->next [L1017] end = end->next [L1018] FCALL end->next = null [L1019] FCALL end->colour = BLACK [L1021] EXPR, FCALL end->colour [L1021] COND FALSE !(!(BLACK == end->colour)) [L1021] COND FALSE !(0) [L1022] EXPR, FCALL end->next [L1022] COND FALSE !(!(null == end->next)) [L1022] COND FALSE !(0) [L1023] COND FALSE !(!(null != end)) [L1023] COND FALSE !(0) [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1026] end = null [L1027] end = list [L1030] COND FALSE !(!(null != end)) [L1030] COND FALSE !(0) [L1031] EXPR, FCALL end->colour [L1031] COND FALSE !(!(BLACK == end->colour)) [L1031] COND FALSE !(0) [L1032] COND TRUE null != end [L1034] EXPR, FCALL end->colour [L1034] COND FALSE !(RED == end->colour) [L1041] EXPR, FCALL end->next [L1041] end = end->next [L1032] COND TRUE null != end [L1034] EXPR, FCALL end->colour [L1034] COND TRUE RED == end->colour [L1036] EXPR, FCALL end->next [L1036] end = end->next [L1037] COND FALSE !(!(null != end)) [L1037] COND FALSE !(0) [L1038] EXPR, FCALL end->colour [L1038] COND TRUE !(BLACK != end->colour) [L1038] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 343.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 430.26 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * CodeCheck took 35242.05 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 351.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -12.4 MB). Peak memory consumption was 338.9 MB. Max. memory is 11.5 GB. * Witness Printer took 72.11 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...