./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/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_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/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 0.1.23-635dfa2 [2018-12-08 12:56:07,793 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 12:56:07,794 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 12:56:07,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 12:56:07,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 12:56:07,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 12:56:07,804 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 12:56:07,805 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 12:56:07,806 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 12:56:07,807 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 12:56:07,807 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 12:56:07,807 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 12:56:07,808 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 12:56:07,809 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 12:56:07,809 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 12:56:07,810 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 12:56:07,810 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 12:56:07,811 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 12:56:07,812 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 12:56:07,813 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 12:56:07,813 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 12:56:07,814 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 12:56:07,816 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 12:56:07,816 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 12:56:07,816 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 12:56:07,817 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 12:56:07,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 12:56:07,818 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 12:56:07,818 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 12:56:07,819 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 12:56:07,819 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 12:56:07,819 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 12:56:07,819 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 12:56:07,819 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 12:56:07,820 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 12:56:07,820 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 12:56:07,820 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-08 12:56:07,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 12:56:07,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 12:56:07,829 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 12:56:07,829 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-08 12:56:07,829 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 12:56:07,830 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 12:56:07,830 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 12:56:07,830 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 12:56:07,830 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 12:56:07,830 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 12:56:07,830 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 12:56:07,831 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 12:56:07,831 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 12:56:07,831 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 12:56:07,831 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 12:56:07,831 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 12:56:07,831 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 12:56:07,831 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 12:56:07,832 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 12:56:07,832 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 12:56:07,832 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 12:56:07,832 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 12:56:07,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 12:56:07,832 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 12:56:07,833 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 12:56:07,833 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 12:56:07,833 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 12:56:07,833 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 12:56:07,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 12:56:07,833 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_729cdc36-e6ff-45cb-a564-e494070c8e21/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 [2018-12-08 12:56:07,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 12:56:07,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 12:56:07,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 12:56:07,865 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 12:56:07,866 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 12:56:07,866 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-12-08 12:56:07,902 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/data/64eda9ead/018c5af58799406ab788ee13bb41c6b7/FLAG3a96b33c0 [2018-12-08 12:56:08,262 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 12:56:08,263 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-12-08 12:56:08,269 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/data/64eda9ead/018c5af58799406ab788ee13bb41c6b7/FLAG3a96b33c0 [2018-12-08 12:56:08,277 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/data/64eda9ead/018c5af58799406ab788ee13bb41c6b7 [2018-12-08 12:56:08,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 12:56:08,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 12:56:08,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 12:56:08,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 12:56:08,283 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 12:56:08,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56412a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08, skipping insertion in model container [2018-12-08 12:56:08,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 12:56:08,314 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 12:56:08,480 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 12:56:08,486 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 12:56:08,550 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 12:56:08,570 INFO L195 MainTranslator]: Completed translation [2018-12-08 12:56:08,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08 WrapperNode [2018-12-08 12:56:08,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 12:56:08,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 12:56:08,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 12:56:08,571 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 12:56:08,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 12:56:08,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 12:56:08,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 12:56:08,598 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 12:56:08,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... [2018-12-08 12:56:08,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 12:56:08,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 12:56:08,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 12:56:08,616 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 12:56:08,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 12:56:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/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 [2018-12-08 12:56:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 12:56:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 12:56:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 12:56:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 12:56:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 12:56:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 12:56:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 12:56:08,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 12:56:09,010 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 12:56:09,010 INFO L280 CfgBuilder]: Removed 21 assue(true) statements. [2018-12-08 12:56:09,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:56:09 BoogieIcfgContainer [2018-12-08 12:56:09,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 12:56:09,010 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 12:56:09,010 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 12:56:09,019 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 12:56:09,020 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:56:09" (1/1) ... [2018-12-08 12:56:09,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 12:56:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:09,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 41 states and 66 transitions. [2018-12-08 12:56:09,050 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 66 transitions. [2018-12-08 12:56:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 12:56:09,052 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2018-12-08 12:56:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2018-12-08 12:56:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 12:56:09,158 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:09,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:09,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 39 states and 56 transitions. [2018-12-08 12:56:09,305 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2018-12-08 12:56:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 12:56:09,305 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:09,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:09,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 43 states and 62 transitions. [2018-12-08 12:56:09,404 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2018-12-08 12:56:09,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 12:56:09,405 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 43 states and 58 transitions. [2018-12-08 12:56:09,430 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2018-12-08 12:56:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 12:56:09,431 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2018-12-08 12:56:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2018-12-08 12:56:09,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 12:56:09,677 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:10,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 48 states and 62 transitions. [2018-12-08 12:56:10,101 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2018-12-08 12:56:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 12:56:10,102 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:10,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:10,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 57 states and 76 transitions. [2018-12-08 12:56:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2018-12-08 12:56:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 12:56:10,871 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 59 states and 77 transitions. [2018-12-08 12:56:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2018-12-08 12:56:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 12:56:11,150 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 12:56:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:11,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 67 states and 85 transitions. [2018-12-08 12:56:11,786 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2018-12-08 12:56:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 12:56:11,787 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 79 states and 106 transitions. [2018-12-08 12:56:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 106 transitions. [2018-12-08 12:56:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 12:56:13,091 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 89 states and 122 transitions. [2018-12-08 12:56:16,458 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 122 transitions. [2018-12-08 12:56:16,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 12:56:16,458 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 12:56:16,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 90 states and 123 transitions. [2018-12-08 12:56:16,680 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 123 transitions. [2018-12-08 12:56:16,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 12:56:16,681 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:16,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 12:56:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 98 states and 133 transitions. [2018-12-08 12:56:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 133 transitions. [2018-12-08 12:56:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 12:56:18,285 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:31,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 122 states and 186 transitions. [2018-12-08 12:56:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 186 transitions. [2018-12-08 12:56:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 12:56:31,602 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:32,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:38,642 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-12-08 12:56:40,510 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-12-08 12:56:40,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 132 states and 206 transitions. [2018-12-08 12:56:40,875 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 206 transitions. [2018-12-08 12:56:40,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 12:56:40,876 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:41,534 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:56:42,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:56:42,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 134 states and 210 transitions. [2018-12-08 12:56:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 210 transitions. [2018-12-08 12:56:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 12:56:42,640 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:56:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:56:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:57:01,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:57:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 155 states and 259 transitions. [2018-12-08 12:57:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 259 transitions. [2018-12-08 12:57:01,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 12:57:01,563 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:57:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 12:57:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 12:57:02,752 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2018-12-08 12:57:03,291 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2018-12-08 12:57:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 12:57:05,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 157 states and 262 transitions. [2018-12-08 12:57:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 262 transitions. [2018-12-08 12:57:05,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 12:57:05,189 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 12:57:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:57:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:57:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:57:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 12:57:05,385 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 19 iterations. [2018-12-08 12:57:05,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 12:57:05 ImpRootNode [2018-12-08 12:57:05,409 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 12:57:05,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 12:57:05,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 12:57:05,410 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 12:57:05,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 12:56:09" (3/4) ... [2018-12-08 12:57:05,412 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 12:57:05,452 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_729cdc36-e6ff-45cb-a564-e494070c8e21/bin-2019/ukojak/witness.graphml [2018-12-08 12:57:05,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 12:57:05,453 INFO L168 Benchmark]: Toolchain (without parser) took 57173.38 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 358.1 MB). Free memory was 950.6 MB in the beginning and 877.2 MB in the end (delta: 73.4 MB). Peak memory consumption was 431.5 MB. Max. memory is 11.5 GB. [2018-12-08 12:57:05,453 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-08 12:57:05,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-12-08 12:57:05,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.11 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 12:57:05,454 INFO L168 Benchmark]: Boogie Preprocessor took 18.58 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 12:57:05,455 INFO L168 Benchmark]: RCFGBuilder took 393.87 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2018-12-08 12:57:05,455 INFO L168 Benchmark]: CodeCheck took 56399.12 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 260.0 MB). Free memory was 1.0 GB in the beginning and 889.4 MB in the end (delta: 143.4 MB). Peak memory consumption was 403.5 MB. Max. memory is 11.5 GB. [2018-12-08 12:57:05,455 INFO L168 Benchmark]: Witness Printer took 42.30 ms. Allocated memory is still 1.4 GB. Free memory was 889.4 MB in the beginning and 877.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2018-12-08 12:57:05,458 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, 47 locations, 7 error locations. UNSAFE Result, 56.3s OverallTime, 19 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1861632 SDtfs, 461172 SDslu, 618912 SDs, 0 SdLazy, 2216606 SolverSat, 1160942 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2761 GetRequests, 2259 SyntacticMatches, 114 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72439 ImplicationChecksByTransitivity, 49.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 211043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 11/72 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] struct TSLL* null = malloc(sizeof(struct TSLL)); [L988] null->next = ((void*)0) [L989] null->prev = ((void*)0) [L990] null->colour = BLACK [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); [L993] list->next = null [L994] list->prev = null [L995] list->colour = BLACK [L997] struct TSLL* end = list; [L1000] COND TRUE __VERIFIER_nondet_int() [L1003] end->next = malloc(sizeof(struct TSLL)) [L1004] EXPR end->next [L1004] end->next->prev = end [L1005] EXPR end->next [L1005] end = end->next [L1006] end->next = null [L1008] COND FALSE !(__VERIFIER_nondet_int()) [L1014] end->colour = RED [L1015] end->next = malloc(sizeof(struct TSLL)) [L1016] EXPR end->next [L1016] end->next->prev = end [L1017] EXPR end->next [L1017] end = end->next [L1018] end->next = null [L1019] end->colour = BLACK [L1021] EXPR end->colour [L1021] COND FALSE !(!(BLACK == end->colour)) [L1022] EXPR end->next [L1022] COND FALSE !(!(null == end->next)) [L1023] COND FALSE !(!(null != end)) [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1026] end = null [L1027] end = list [L1030] COND FALSE !(!(null != end)) [L1031] EXPR end->colour [L1031] COND FALSE !(!(BLACK == end->colour)) [L1032] COND TRUE null != end [L1034] EXPR end->colour [L1034] COND FALSE !(RED == end->colour) [L1041] EXPR end->next [L1041] end = end->next [L1032] COND TRUE null != end [L1034] EXPR end->colour [L1034] COND TRUE RED == end->colour [L1036] EXPR end->next [L1036] end = end->next [L1037] COND FALSE !(!(null != end)) [L1038] EXPR 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 0.11 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 290.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.11 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.58 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 393.87 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * CodeCheck took 56399.12 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 260.0 MB). Free memory was 1.0 GB in the beginning and 889.4 MB in the end (delta: 143.4 MB). Peak memory consumption was 403.5 MB. Max. memory is 11.5 GB. * Witness Printer took 42.30 ms. Allocated memory is still 1.4 GB. Free memory was 889.4 MB in the beginning and 877.2 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...