./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/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 007e384484156a98966ed1421b3dd3e5ea133849 ...................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 12:33:41,345 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:33:41,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:33:41,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:33:41,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:33:41,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:33:41,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:33:41,356 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:33:41,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:33:41,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:33:41,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:33:41,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:33:41,359 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:33:41,360 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:33:41,360 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:33:41,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:33:41,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:33:41,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:33:41,363 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:33:41,364 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:33:41,365 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:33:41,366 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:33:41,367 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:33:41,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:33:41,367 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:33:41,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:33:41,368 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:33:41,369 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:33:41,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:33:41,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:33:41,370 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:33:41,370 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:33:41,370 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:33:41,370 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:33:41,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:33:41,371 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:33:41,371 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 12:33:41,379 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:33:41,379 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:33:41,379 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:33:41,379 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:33:41,380 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:33:41,380 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:33:41,380 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:33:41,380 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:33:41,381 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:33:41,381 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 12:33:41,382 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 12:33:41,382 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:33:41,382 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:33:41,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 12:33:41,382 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:33:41,382 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:33:41,382 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:33:41,382 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 12:33:41,382 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:33:41,383 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:33:41,383 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_515a1e1a-8686-4165-8db8-f4402614ad6b/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 -> 007e384484156a98966ed1421b3dd3e5ea133849 [2018-11-10 12:33:41,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:33:41,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:33:41,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:33:41,420 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:33:41,421 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:33:41,421 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/../../sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-memcleanup.i [2018-11-10 12:33:41,457 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/data/19eb4a42a/a341924dab11491b9afa101361af763d/FLAG5b5cf6c20 [2018-11-10 12:33:41,890 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:33:41,891 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-memcleanup.i [2018-11-10 12:33:41,899 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/data/19eb4a42a/a341924dab11491b9afa101361af763d/FLAG5b5cf6c20 [2018-11-10 12:33:41,908 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/data/19eb4a42a/a341924dab11491b9afa101361af763d [2018-11-10 12:33:41,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:33:41,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:33:41,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:33:41,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:33:41,914 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:33:41,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:33:41" (1/1) ... [2018-11-10 12:33:41,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba810fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:41, skipping insertion in model container [2018-11-10 12:33:41,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:33:41" (1/1) ... [2018-11-10 12:33:41,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:33:41,951 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:33:42,137 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:33:42,144 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:33:42,177 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:33:42,201 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:33:42,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42 WrapperNode [2018-11-10 12:33:42,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:33:42,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:33:42,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:33:42,202 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:33:42,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:33:42,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:33:42,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:33:42,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:33:42,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:33:42,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:33:42,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:33:42,309 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:33:42,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:33:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 12:33:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 12:33:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 12:33:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-10 12:33:42,356 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-10 12:33:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 12:33:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 12:33:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 12:33:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 12:33:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:33:42,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:33:42,940 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:33:42,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:33:42 BoogieIcfgContainer [2018-11-10 12:33:42,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:33:42,941 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 12:33:42,941 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 12:33:42,948 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 12:33:42,948 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:33:42" (1/1) ... [2018-11-10 12:33:42,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:33:42,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:42,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 36 states and 59 transitions. [2018-11-10 12:33:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2018-11-10 12:33:42,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 12:33:42,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:43,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2018-11-10 12:33:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2018-11-10 12:33:43,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 12:33:43,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 42 states and 59 transitions. [2018-11-10 12:33:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2018-11-10 12:33:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 12:33:43,197 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:43,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:43,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 44 states and 63 transitions. [2018-11-10 12:33:43,363 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2018-11-10 12:33:43,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 12:33:43,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 12:33:43,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2018-11-10 12:33:43,857 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2018-11-10 12:33:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:33:43,857 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:44,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:44,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 57 states and 85 transitions. [2018-11-10 12:33:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2018-11-10 12:33:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 12:33:44,782 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:45,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:45,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 67 states and 102 transitions. [2018-11-10 12:33:45,999 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 102 transitions. [2018-11-10 12:33:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 12:33:46,000 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 72 states and 112 transitions. [2018-11-10 12:33:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 112 transitions. [2018-11-10 12:33:46,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 12:33:46,733 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:33:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:33:47,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 12:33:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 74 states and 118 transitions. [2018-11-10 12:33:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2018-11-10 12:33:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 12:33:47,476 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 12:33:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:33:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:33:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:33:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:33:47,791 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2018-11-10 12:33:47,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 12:33:47 ImpRootNode [2018-11-10 12:33:47,822 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 12:33:47,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:33:47,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:33:47,823 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:33:47,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:33:42" (3/4) ... [2018-11-10 12:33:47,825 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 12:33:47,879 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_515a1e1a-8686-4165-8db8-f4402614ad6b/bin-2019/ukojak/witness.graphml [2018-11-10 12:33:47,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:33:47,880 INFO L168 Benchmark]: Toolchain (without parser) took 5968.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 957.5 MB in the beginning and 935.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 189.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:47,881 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:33:47,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.80 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 928.0 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:47,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 928.0 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:47,883 INFO L168 Benchmark]: Boogie Preprocessor took 26.73 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:47,883 INFO L168 Benchmark]: RCFGBuilder took 631.61 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: 71.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:47,884 INFO L168 Benchmark]: CodeCheck took 4881.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.0 GB in the beginning and 940.5 MB in the end (delta: 97.4 MB). Peak memory consumption was 148.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:47,886 INFO L168 Benchmark]: Witness Printer took 56.06 ms. Allocated memory is still 1.2 GB. Free memory was 940.5 MB in the beginning and 935.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:33:47,890 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 2 procedures, 91 locations, 1 error locations. UNSAFE Result, 4.8s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3960 SDtfs, 3004 SDslu, 3784 SDs, 0 SdLazy, 5184 SolverSat, 1792 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1311 GetRequests, 1183 SyntacticMatches, 18 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4403 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 23908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 14/30 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: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L621] CALL, EXPR create_tree() [L574] struct node *nodelast = ((void *)0); [L575] struct node *node = ((void *)0); [L576] COND TRUE __VERIFIER_nondet_int() [L577] EXPR, FCALL malloc(sizeof *node) [L577] node = malloc(sizeof *node) [L578] COND FALSE !(!node) [L580] FCALL node->left = ((void *)0) [L581] FCALL node->right = nodelast [L582] COND FALSE !(\read(*nodelast)) [L584] int value = __VERIFIER_nondet_int(); [L585] FCALL node->value = value [L586] nodelast = node [L576] COND FALSE !(__VERIFIER_nondet_int()) [L588] COND TRUE node != ((void *)0) [L589] FCALL node->parent = ((void *)0) [L590] COND TRUE node != ((void *)0) [L591] EXPR, FCALL malloc(sizeof *node) [L591] FCALL node->left = malloc(sizeof *node) [L592] COND FALSE !(!node) [L594] EXPR, FCALL node->left [L594] FCALL node->left->left = ((void *)0) [L595] EXPR, FCALL node->left [L595] FCALL node->left->right = ((void *)0) [L596] EXPR, FCALL node->left [L596] FCALL node->left->value = 42 [L597] EXPR, FCALL node->left [L597] FCALL node->left->parent = node [L598] EXPR, FCALL node->right [L598] node = node->right [L590] COND FALSE !(node != ((void *)0)) [L600] RET return nodelast; [L621] EXPR create_tree() [L621] struct node *data = create_tree(); [L622] COND FALSE !(!data) [L624] CALL inspect(data) [L564] COND FALSE !(!(node)) [L564] COND FALSE !(0) [L565] COND TRUE node != ((void *)0) [L566] FCALL node->left [L566] COND TRUE node->left [L567] EXPR, FCALL node->left [L567] EXPR, FCALL node->left->value [L567] COND FALSE !(!(node->left->value == 42)) [L567] COND FALSE !(0) [L568] EXPR, FCALL node->value [L568] COND TRUE !(node->value) [L568] CALL fail() [L554] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.80 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 928.0 MB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 928.0 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.73 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 631.61 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: 71.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 11.5 GB. * CodeCheck took 4881.91 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 51.4 MB). Free memory was 1.0 GB in the beginning and 940.5 MB in the end (delta: 97.4 MB). Peak memory consumption was 148.8 MB. Max. memory is 11.5 GB. * Witness Printer took 56.06 ms. Allocated memory is still 1.2 GB. Free memory was 940.5 MB in the beginning and 935.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...