./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_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/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_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/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 [2018-12-01 15:06:35,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 15:06:35,103 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 15:06:35,109 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 15:06:35,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 15:06:35,110 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 15:06:35,110 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 15:06:35,111 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 15:06:35,112 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 15:06:35,112 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 15:06:35,112 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 15:06:35,112 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 15:06:35,113 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 15:06:35,113 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 15:06:35,114 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 15:06:35,114 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 15:06:35,115 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 15:06:35,115 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 15:06:35,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 15:06:35,117 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 15:06:35,117 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 15:06:35,118 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 15:06:35,119 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 15:06:35,119 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 15:06:35,119 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 15:06:35,120 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 15:06:35,120 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 15:06:35,120 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 15:06:35,121 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 15:06:35,121 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 15:06:35,121 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 15:06:35,122 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 15:06:35,122 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 15:06:35,122 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 15:06:35,122 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 15:06:35,123 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 15:06:35,123 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-01 15:06:35,130 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 15:06:35,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 15:06:35,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 15:06:35,131 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-01 15:06:35,131 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 15:06:35,131 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 15:06:35,131 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 15:06:35,131 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 15:06:35,131 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 15:06:35,131 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 15:06:35,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 15:06:35,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 15:06:35,132 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 15:06:35,132 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 15:06:35,132 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 15:06:35,132 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 15:06:35,133 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 15:06:35,133 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 15:06:35,133 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 15:06:35,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 15:06:35,133 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_91de1b7e-6da4-4e70-8c7c-d87381c63868/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 [2018-12-01 15:06:35,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 15:06:35,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 15:06:35,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 15:06:35,163 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 15:06:35,163 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 15:06:35,164 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-12-01 15:06:35,209 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/data/a4e275e65/7b286e6e25c34650a06674543df68bda/FLAG42f99f2cb [2018-12-01 15:06:35,630 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 15:06:35,630 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/sv-benchmarks/c/forester-heap/dll-rb-sentinel_false-unreach-call_false-valid-memtrack.i [2018-12-01 15:06:35,639 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/data/a4e275e65/7b286e6e25c34650a06674543df68bda/FLAG42f99f2cb [2018-12-01 15:06:35,650 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/data/a4e275e65/7b286e6e25c34650a06674543df68bda [2018-12-01 15:06:35,651 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 15:06:35,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 15:06:35,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 15:06:35,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 15:06:35,655 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 15:06:35,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,657 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 01.12 03:06:35, skipping insertion in model container [2018-12-01 15:06:35,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 15:06:35,682 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 15:06:35,828 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 15:06:35,864 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 15:06:35,892 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 15:06:35,912 INFO L195 MainTranslator]: Completed translation [2018-12-01 15:06:35,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35 WrapperNode [2018-12-01 15:06:35,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 15:06:35,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 15:06:35,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 15:06:35,913 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 15:06:35,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 15:06:35,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 15:06:35,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 15:06:35,939 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 15:06:35,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... [2018-12-01 15:06:35,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 15:06:35,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 15:06:35,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 15:06:35,957 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 15:06:35,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/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 [2018-12-01 15:06:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 15:06:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 15:06:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 15:06:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 15:06:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 15:06:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 15:06:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 15:06:35,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 15:06:36,330 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 15:06:36,330 INFO L280 CfgBuilder]: Removed 21 assue(true) statements. [2018-12-01 15:06:36,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:36 BoogieIcfgContainer [2018-12-01 15:06:36,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 15:06:36,331 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 15:06:36,331 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 15:06:36,337 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 15:06:36,338 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:36" (1/1) ... [2018-12-01 15:06:36,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:06:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:36,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 41 states and 66 transitions. [2018-12-01 15:06:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 66 transitions. [2018-12-01 15:06:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 15:06:36,366 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:36,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2018-12-01 15:06:36,447 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2018-12-01 15:06:36,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 15:06:36,447 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:36,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:36,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 39 states and 56 transitions. [2018-12-01 15:06:36,585 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2018-12-01 15:06:36,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 15:06:36,586 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:36,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 43 states and 62 transitions. [2018-12-01 15:06:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2018-12-01 15:06:36,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 15:06:36,671 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:36,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:36,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 43 states and 58 transitions. [2018-12-01 15:06:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2018-12-01 15:06:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 15:06:36,688 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:36,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2018-12-01 15:06:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2018-12-01 15:06:36,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 15:06:36,913 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 48 states and 62 transitions. [2018-12-01 15:06:37,372 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2018-12-01 15:06:37,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 15:06:37,372 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:38,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 57 states and 76 transitions. [2018-12-01 15:06:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2018-12-01 15:06:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 15:06:38,118 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:38,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:38,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 59 states and 77 transitions. [2018-12-01 15:06:38,386 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 77 transitions. [2018-12-01 15:06:38,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 15:06:38,386 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 15:06:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 67 states and 85 transitions. [2018-12-01 15:06:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2018-12-01 15:06:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 15:06:40,641 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:41,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 79 states and 106 transitions. [2018-12-01 15:06:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 106 transitions. [2018-12-01 15:06:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 15:06:41,940 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:44,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 89 states and 122 transitions. [2018-12-01 15:06:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 122 transitions. [2018-12-01 15:06:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 15:06:44,715 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-01 15:06:44,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 90 states and 123 transitions. [2018-12-01 15:06:44,933 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 123 transitions. [2018-12-01 15:06:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 15:06:44,933 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:45,071 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 15:06:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:06:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 98 states and 133 transitions. [2018-12-01 15:06:46,630 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 133 transitions. [2018-12-01 15:06:46,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-01 15:06:46,630 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:06:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:06:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:06:49,060 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2018-12-01 15:07:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:07:00,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 122 states and 186 transitions. [2018-12-01 15:07:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 186 transitions. [2018-12-01 15:07:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 15:07:00,160 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:07:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:07:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:07:04,796 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2018-12-01 15:07:05,315 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2018-12-01 15:07:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:07:08,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 132 states and 206 transitions. [2018-12-01 15:07:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 206 transitions. [2018-12-01 15:07:08,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 15:07:08,043 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:07:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:07:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:07:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:07:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 134 states and 210 transitions. [2018-12-01 15:07:09,915 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 210 transitions. [2018-12-01 15:07:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 15:07:09,915 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:07:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:07:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:07:14,489 WARN L180 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-12-01 15:07:16,007 WARN L180 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2018-12-01 15:07:18,497 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2018-12-01 15:07:20,113 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2018-12-01 15:07:26,567 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-01 15:07:27,484 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-12-01 15:07:28,434 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-12-01 15:07:28,915 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-01 15:07:35,579 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2018-12-01 15:07:35,947 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2018-12-01 15:07:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:07:40,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 155 states and 259 transitions. [2018-12-01 15:07:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 259 transitions. [2018-12-01 15:07:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 15:07:40,258 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:07:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:07:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:07:41,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 15:07:41,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 157 states and 262 transitions. [2018-12-01 15:07:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 262 transitions. [2018-12-01 15:07:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 15:07:41,571 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 15:07:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:07:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:07:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:07:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:07:41,771 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 19 iterations. [2018-12-01 15:07:41,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 03:07:41 ImpRootNode [2018-12-01 15:07:41,797 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 15:07:41,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 15:07:41,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 15:07:41,797 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 15:07:41,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:36" (3/4) ... [2018-12-01 15:07:41,799 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 15:07:41,840 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_91de1b7e-6da4-4e70-8c7c-d87381c63868/bin-2019/ukojak/witness.graphml [2018-12-01 15:07:41,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 15:07:41,840 INFO L168 Benchmark]: Toolchain (without parser) took 66188.81 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 342.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -139.9 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. [2018-12-01 15:07:41,841 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-12-01 15:07:41,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-01 15:07:41,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:07:41,842 INFO L168 Benchmark]: Boogie Preprocessor took 17.82 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-01 15:07:41,842 INFO L168 Benchmark]: RCFGBuilder took 373.62 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2018-12-01 15:07:41,842 INFO L168 Benchmark]: CodeCheck took 65465.52 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.3 MB). Peak memory consumption was 186.6 MB. Max. memory is 11.5 GB. [2018-12-01 15:07:41,843 INFO L168 Benchmark]: Witness Printer took 43.13 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:07:41,845 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, 65.4s 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, 24.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2761 GetRequests, 2259 SyntacticMatches, 114 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72439 ImplicationChecksByTransitivity, 59.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.0s 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 0.14 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 259.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.82 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 373.62 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * CodeCheck took 65465.52 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 213.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.3 MB). Peak memory consumption was 186.6 MB. Max. memory is 11.5 GB. * Witness Printer took 43.13 ms. Allocated memory is still 1.4 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...