./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-simple-white-blue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/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 f369e67185304fce6130a1dfc66e8cb89abf0605 .................................................................................................................................................................................................................................... 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 [2018-12-02 07:22:43,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 07:22:43,259 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 07:22:43,265 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 07:22:43,265 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 07:22:43,266 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 07:22:43,266 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 07:22:43,267 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 07:22:43,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 07:22:43,269 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 07:22:43,269 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 07:22:43,269 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 07:22:43,270 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 07:22:43,270 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 07:22:43,271 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 07:22:43,271 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 07:22:43,272 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 07:22:43,273 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 07:22:43,273 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 07:22:43,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 07:22:43,275 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 07:22:43,275 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 07:22:43,276 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 07:22:43,276 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 07:22:43,277 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 07:22:43,277 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 07:22:43,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 07:22:43,278 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 07:22:43,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 07:22:43,279 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 07:22:43,279 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 07:22:43,279 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 07:22:43,279 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 07:22:43,280 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 07:22:43,280 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 07:22:43,280 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 07:22:43,281 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-02 07:22:43,288 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 07:22:43,288 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 07:22:43,288 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 07:22:43,288 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 07:22:43,289 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 07:22:43,289 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 07:22:43,289 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 07:22:43,289 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 07:22:43,289 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 07:22:43,289 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 07:22:43,289 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 07:22:43,290 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 07:22:43,290 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 07:22:43,290 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 07:22:43,290 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 07:22:43,290 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 07:22:43,290 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 07:22:43,290 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 07:22:43,290 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 07:22:43,291 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 07:22:43,291 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 07:22:43,291 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 07:22:43,291 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 07:22:43,291 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 07:22:43,291 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 07:22:43,291 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 07:22:43,291 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 07:22:43,292 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 07:22:43,292 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 07:22:43,292 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_72b7516c-4f02-4981-b7eb-5449384e5db7/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 -> f369e67185304fce6130a1dfc66e8cb89abf0605 [2018-12-02 07:22:43,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 07:22:43,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 07:22:43,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 07:22:43,321 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 07:22:43,321 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 07:22:43,322 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-simple-white-blue_false-unreach-call_false-valid-memcleanup.i [2018-12-02 07:22:43,356 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/data/a70a44466/29a089d96154433198b27f59cbb1b632/FLAG0c4105932 [2018-12-02 07:22:43,748 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 07:22:43,748 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/sv-benchmarks/c/forester-heap/dll-simple-white-blue_false-unreach-call_false-valid-memcleanup.i [2018-12-02 07:22:43,754 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/data/a70a44466/29a089d96154433198b27f59cbb1b632/FLAG0c4105932 [2018-12-02 07:22:44,091 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/data/a70a44466/29a089d96154433198b27f59cbb1b632 [2018-12-02 07:22:44,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 07:22:44,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 07:22:44,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 07:22:44,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 07:22:44,096 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 07:22:44,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340b48b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44, skipping insertion in model container [2018-12-02 07:22:44,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 07:22:44,124 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 07:22:44,267 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:22:44,273 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 07:22:44,340 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:22:44,363 INFO L195 MainTranslator]: Completed translation [2018-12-02 07:22:44,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44 WrapperNode [2018-12-02 07:22:44,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 07:22:44,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 07:22:44,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 07:22:44,364 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 07:22:44,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 07:22:44,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 07:22:44,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 07:22:44,393 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 07:22:44,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 07:22:44,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 07:22:44,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 07:22:44,413 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 07:22:44,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:22:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/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 [2018-12-02 07:22:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 07:22:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 07:22:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 07:22:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 07:22:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 07:22:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 07:22:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 07:22:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 07:22:44,743 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 07:22:44,743 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-02 07:22:44,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:44 BoogieIcfgContainer [2018-12-02 07:22:44,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 07:22:44,744 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 07:22:44,744 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 07:22:44,752 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 07:22:44,752 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:44" (1/1) ... [2018-12-02 07:22:44,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:22:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 07:22:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2018-12-02 07:22:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2018-12-02 07:22:44,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 07:22:44,784 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 07:22:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:22:44,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:22:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 07:22:44,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2018-12-02 07:22:44,873 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2018-12-02 07:22:44,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-02 07:22:44,874 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 07:22:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:22:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:22:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:22:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:22:44,970 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2018-12-02 07:22:44,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 07:22:44 ImpRootNode [2018-12-02 07:22:44,987 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 07:22:44,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 07:22:44,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 07:22:44,988 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 07:22:44,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:22:44" (3/4) ... [2018-12-02 07:22:44,990 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 07:22:45,015 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_72b7516c-4f02-4981-b7eb-5449384e5db7/bin-2019/ukojak/witness.graphml [2018-12-02 07:22:45,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 07:22:45,016 INFO L168 Benchmark]: Toolchain (without parser) took 923.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 950.6 MB in the beginning and 987.9 MB in the end (delta: -37.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2018-12-02 07:22:45,017 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:22:45,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 07:22:45,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.95 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. [2018-12-02 07:22:45,018 INFO L168 Benchmark]: Boogie Preprocessor took 19.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:22:45,018 INFO L168 Benchmark]: RCFGBuilder took 331.06 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2018-12-02 07:22:45,019 INFO L168 Benchmark]: CodeCheck took 242.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 987.9 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-02 07:22:45,019 INFO L168 Benchmark]: Witness Printer took 28.32 ms. Allocated memory is still 1.1 GB. Free memory is still 987.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:22:45,020 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, 27 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1052]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L989] SLL* head = malloc(sizeof(SLL)); [L990] head->next = ((void*)0) [L991] head->prev = ((void*)0) [L992] head->data = 0 [L994] SLL* x = head; [L997] COND FALSE !(__VERIFIER_nondet_int()) [L1008] COND TRUE __VERIFIER_nondet_int() [L1009] x = malloc(sizeof(SLL)) [L1010] x->data = 1 [L1011] x->next = head [L1012] x->prev = ((void*)0) [L1013] head = x [L1039] x = head [L1042] EXPR x->data [L1042] COND FALSE !(x->data != 1) [L1048] EXPR x->next [L1048] x = x->next [L1049] COND TRUE \read(*x) [L1051] EXPR x->data [L1051] COND TRUE x->data != 1 [L1052] __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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.95 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 19.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 331.06 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * CodeCheck took 242.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 987.9 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 28.32 ms. Allocated memory is still 1.1 GB. Free memory is still 987.9 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...