./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-deref.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_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/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 b50a14aaadb91f0d2171e26e1cac3b7310be0682 ............................................................................................................................................................................................................................................................................................................... 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 05:19:19,441 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:19:19,442 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:19:19,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:19:19,449 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:19:19,450 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:19:19,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:19:19,452 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:19:19,454 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:19:19,454 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:19:19,455 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:19:19,455 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:19:19,456 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:19:19,457 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:19:19,458 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:19:19,458 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:19:19,459 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:19:19,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:19:19,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:19:19,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:19:19,463 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:19:19,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:19:19,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:19:19,465 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:19:19,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:19:19,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:19:19,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:19:19,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:19:19,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:19:19,468 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:19:19,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:19:19,469 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:19:19,469 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:19:19,470 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:19:19,470 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:19:19,471 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:19:19,471 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 05:19:19,479 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:19:19,479 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:19:19,480 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:19:19,480 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:19:19,480 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:19:19,481 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:19:19,481 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:19:19,481 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:19:19,481 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:19:19,481 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:19:19,481 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:19:19,481 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:19:19,482 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:19:19,482 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:19:19,482 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:19:19,482 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:19:19,482 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:19:19,482 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 05:19:19,482 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 05:19:19,483 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:19:19,483 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:19:19,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 05:19:19,483 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:19:19,483 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:19:19,483 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:19:19,483 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 05:19:19,484 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:19:19,484 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:19:19,484 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_c5942736-a4f0-48ea-9267-f83c11c8e09c/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 -> b50a14aaadb91f0d2171e26e1cac3b7310be0682 [2018-11-10 05:19:19,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:19:19,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:19:19,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:19:19,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:19:19,522 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:19:19,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/../../sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-deref.i [2018-11-10 05:19:19,566 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/data/3fdebd354/7376ba14cd994f88a3be3c216c2ae095/FLAGade698dbe [2018-11-10 05:19:19,946 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:19:19,946 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/sv-benchmarks/c/heap-manipulation/tree_false-unreach-call_false-valid-deref.i [2018-11-10 05:19:19,955 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/data/3fdebd354/7376ba14cd994f88a3be3c216c2ae095/FLAGade698dbe [2018-11-10 05:19:19,965 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/data/3fdebd354/7376ba14cd994f88a3be3c216c2ae095 [2018-11-10 05:19:19,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:19:19,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:19:19,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:19:19,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:19:19,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:19:19,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:19:19" (1/1) ... [2018-11-10 05:19:19,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9e1ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:19, skipping insertion in model container [2018-11-10 05:19:19,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:19:19" (1/1) ... [2018-11-10 05:19:19,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:19:20,019 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:19:20,230 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:19:20,237 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:19:20,269 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:19:20,302 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:19:20,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20 WrapperNode [2018-11-10 05:19:20,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:19:20,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:19:20,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:19:20,303 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:19:20,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:19:20,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:19:20,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:19:20,381 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:19:20,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... [2018-11-10 05:19:20,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:19:20,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:19:20,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:19:20,405 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:19:20,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:19:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/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 05:19:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 05:19:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 05:19:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-10 05:19:20,442 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-10 05:19:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 05:19:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 05:19:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 05:19:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 05:19:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:19:20,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:19:21,114 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:19:21,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:19:21 BoogieIcfgContainer [2018-11-10 05:19:21,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:19:21,115 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 05:19:21,115 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 05:19:21,124 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 05:19:21,124 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:19:21" (1/1) ... [2018-11-10 05:19:21,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:19:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 58 transitions. [2018-11-10 05:19:21,170 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2018-11-10 05:19:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 05:19:21,172 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:21,252 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 05:19:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 34 states and 50 transitions. [2018-11-10 05:19:21,258 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2018-11-10 05:19:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:19:21,258 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:21,351 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 05:19:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:21,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 40 states and 57 transitions. [2018-11-10 05:19:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 57 transitions. [2018-11-10 05:19:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 05:19:21,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:21,473 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 05:19:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 42 states and 61 transitions. [2018-11-10 05:19:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2018-11-10 05:19:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 05:19:21,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:21,675 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 05:19:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2018-11-10 05:19:22,020 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2018-11-10 05:19:22,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 05:19:22,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:22,309 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 05:19:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2018-11-10 05:19:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2018-11-10 05:19:23,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 05:19:23,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:23,307 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 05:19:24,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:24,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 65 states and 100 transitions. [2018-11-10 05:19:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 100 transitions. [2018-11-10 05:19:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 05:19:24,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:24,653 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 05:19:25,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:25,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 69 states and 109 transitions. [2018-11-10 05:19:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 109 transitions. [2018-11-10 05:19:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 05:19:25,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:19:25,199 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 05:19:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:19:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 71 states and 114 transitions. [2018-11-10 05:19:25,606 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 114 transitions. [2018-11-10 05:19:25,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 05:19:25,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:19:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:19:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:19:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:19:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:19:25,778 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2018-11-10 05:19:25,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 05:19:25 ImpRootNode [2018-11-10 05:19:25,810 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 05:19:25,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:19:25,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:19:25,810 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:19:25,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:19:21" (3/4) ... [2018-11-10 05:19:25,814 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:19:25,867 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c5942736-a4f0-48ea-9267-f83c11c8e09c/bin-2019/ukojak/witness.graphml [2018-11-10 05:19:25,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:19:25,868 INFO L168 Benchmark]: Toolchain (without parser) took 5900.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -72.9 MB). Peak memory consumption was 114.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:19:25,869 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:19:25,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.70 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 927.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:19:25,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 927.0 MB in the beginning and 1.1 GB in the end (delta: -213.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:19:25,871 INFO L168 Benchmark]: Boogie Preprocessor took 22.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:19:25,871 INFO L168 Benchmark]: RCFGBuilder took 709.91 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: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:19:25,872 INFO L168 Benchmark]: CodeCheck took 4695.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.1 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. [2018-11-10 05:19:25,872 INFO L168 Benchmark]: Witness Printer took 57.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:19:25,876 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, 89 locations, 1 error locations. UNSAFE Result, 4.6s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3512 SDtfs, 2476 SDslu, 3612 SDs, 0 SdLazy, 4706 SolverSat, 1826 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1247 GetRequests, 1120 SyntacticMatches, 21 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3929 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 19908 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 18/30 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: [L619] 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] EXPR, FCALL malloc(sizeof *node) [L589] FCALL node->left = malloc(sizeof *node) [L590] COND FALSE !(!node) [L592] EXPR, FCALL node->left [L592] FCALL node->left->left = ((void *)0) [L593] EXPR, FCALL node->left [L593] FCALL node->left->right = ((void *)0) [L594] EXPR, FCALL node->left [L594] FCALL node->left->value = 42 [L595] EXPR, FCALL node->left [L595] FCALL node->left->parent = node [L596] EXPR, FCALL node->right [L596] node = node->right [L588] COND FALSE !(node != ((void *)0)) [L598] RET return nodelast; [L619] EXPR create_tree() [L619] struct node *data = create_tree(); [L620] COND FALSE !(!data) [L622] 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 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 333.70 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 927.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 927.0 MB in the beginning and 1.1 GB in the end (delta: -213.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 709.91 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: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. * CodeCheck took 4695.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 43.5 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.1 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. * Witness Printer took 57.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...