./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-properties/list_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_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/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 9d5c9e73019496cf8de6b5e77c9588d54710972f ................................................................................................................................................................................................................................................................................................................................... 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 [2018-10-26 20:01:23,516 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 20:01:23,517 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 20:01:23,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 20:01:23,526 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 20:01:23,527 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 20:01:23,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 20:01:23,529 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 20:01:23,531 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 20:01:23,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 20:01:23,532 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 20:01:23,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 20:01:23,533 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 20:01:23,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 20:01:23,535 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 20:01:23,536 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 20:01:23,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 20:01:23,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 20:01:23,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 20:01:23,541 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 20:01:23,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 20:01:23,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 20:01:23,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 20:01:23,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 20:01:23,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 20:01:23,545 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 20:01:23,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 20:01:23,546 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 20:01:23,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 20:01:23,548 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 20:01:23,548 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 20:01:23,549 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 20:01:23,549 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 20:01:23,549 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 20:01:23,550 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 20:01:23,550 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 20:01:23,551 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 20:01:23,562 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 20:01:23,562 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 20:01:23,563 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 20:01:23,563 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 20:01:23,564 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 20:01:23,564 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 20:01:23,564 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 20:01:23,564 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 20:01:23,564 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 20:01:23,564 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 20:01:23,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 20:01:23,564 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 20:01:23,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 20:01:23,565 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 20:01:23,565 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 20:01:23,565 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 20:01:23,565 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 20:01:23,565 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 20:01:23,565 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 20:01:23,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 20:01:23,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 20:01:23,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 20:01:23,568 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 20:01:23,568 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 20:01:23,568 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 20:01:23,568 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 20:01:23,568 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 20:01:23,568 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 20:01:23,568 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_5fbe26c2-4702-4459-8019-ec16eb00bac2/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 -> 9d5c9e73019496cf8de6b5e77c9588d54710972f [2018-10-26 20:01:23,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 20:01:23,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 20:01:23,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 20:01:23,607 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 20:01:23,607 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 20:01:23,607 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/../../sv-benchmarks/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2018-10-26 20:01:23,657 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/data/89a71733f/63899054de564784a63be676eb35a843/FLAG57bc7841b [2018-10-26 20:01:24,065 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 20:01:24,065 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/sv-benchmarks/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2018-10-26 20:01:24,075 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/data/89a71733f/63899054de564784a63be676eb35a843/FLAG57bc7841b [2018-10-26 20:01:24,086 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/data/89a71733f/63899054de564784a63be676eb35a843 [2018-10-26 20:01:24,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 20:01:24,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 20:01:24,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 20:01:24,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 20:01:24,094 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 20:01:24,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e653c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24, skipping insertion in model container [2018-10-26 20:01:24,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 20:01:24,132 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 20:01:24,350 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:01:24,359 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 20:01:24,395 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 20:01:24,429 INFO L193 MainTranslator]: Completed translation [2018-10-26 20:01:24,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24 WrapperNode [2018-10-26 20:01:24,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 20:01:24,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 20:01:24,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 20:01:24,431 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 20:01:24,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 20:01:24,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 20:01:24,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 20:01:24,525 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 20:01:24,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... [2018-10-26 20:01:24,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 20:01:24,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 20:01:24,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 20:01:24,548 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 20:01:24,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:01:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/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 [2018-10-26 20:01:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 20:01:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 20:01:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 20:01:24,601 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-10-26 20:01:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 20:01:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 20:01:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 20:01:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 20:01:24,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 20:01:25,334 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 20:01:25,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:01:25 BoogieIcfgContainer [2018-10-26 20:01:25,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 20:01:25,335 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 20:01:25,335 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 20:01:25,345 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 20:01:25,345 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:01:25" (1/1) ... [2018-10-26 20:01:25,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:01:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:25,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2018-10-26 20:01:25,392 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-10-26 20:01:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 20:01:25,394 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:25,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:25,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2018-10-26 20:01:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-10-26 20:01:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 20:01:25,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2018-10-26 20:01:25,892 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2018-10-26 20:01:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 20:01:25,893 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:26,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:26,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2018-10-26 20:01:26,151 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2018-10-26 20:01:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 20:01:26,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:26,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 38 states and 49 transitions. [2018-10-26 20:01:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2018-10-26 20:01:26,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 20:01:26,714 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:27,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 76 transitions. [2018-10-26 20:01:27,390 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2018-10-26 20:01:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 20:01:27,393 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:27,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 60 states and 95 transitions. [2018-10-26 20:01:27,970 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 95 transitions. [2018-10-26 20:01:27,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:01:27,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:29,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 73 states and 121 transitions. [2018-10-26 20:01:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 121 transitions. [2018-10-26 20:01:29,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 20:01:29,427 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:30,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:30,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 82 states and 141 transitions. [2018-10-26 20:01:30,401 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 141 transitions. [2018-10-26 20:01:30,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 20:01:30,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:31,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 84 states and 151 transitions. [2018-10-26 20:01:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2018-10-26 20:01:31,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 20:01:31,150 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 86 states and 160 transitions. [2018-10-26 20:01:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 160 transitions. [2018-10-26 20:01:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 20:01:31,395 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 88 states and 170 transitions. [2018-10-26 20:01:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 170 transitions. [2018-10-26 20:01:33,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 20:01:33,118 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:01:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 20:01:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 20:01:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 101 states and 209 transitions. [2018-10-26 20:01:35,477 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 209 transitions. [2018-10-26 20:01:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 20:01:35,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 20:01:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:01:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:01:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:01:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 20:01:35,680 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2018-10-26 20:01:35,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 08:01:35 ImpRootNode [2018-10-26 20:01:35,738 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 20:01:35,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 20:01:35,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 20:01:35,738 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 20:01:35,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:01:25" (3/4) ... [2018-10-26 20:01:35,741 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 20:01:35,806 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5fbe26c2-4702-4459-8019-ec16eb00bac2/bin-2019/ukojak/witness.graphml [2018-10-26 20:01:35,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 20:01:35,810 INFO L168 Benchmark]: Toolchain (without parser) took 11720.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 958.1 MB in the beginning and 931.7 MB in the end (delta: 26.4 MB). Peak memory consumption was 236.1 MB. Max. memory is 11.5 GB. [2018-10-26 20:01:35,811 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 20:01:35,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.23 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 933.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-10-26 20:01:35,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 933.7 MB in the beginning and 1.2 GB in the end (delta: -217.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-10-26 20:01:35,812 INFO L168 Benchmark]: Boogie Preprocessor took 22.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2018-10-26 20:01:35,816 INFO L168 Benchmark]: RCFGBuilder took 786.86 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-10-26 20:01:35,818 INFO L168 Benchmark]: CodeCheck took 10402.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 938.1 MB in the end (delta: 169.4 MB). Peak memory consumption was 227.1 MB. Max. memory is 11.5 GB. [2018-10-26 20:01:35,819 INFO L168 Benchmark]: Witness Printer took 70.96 ms. Allocated memory is still 1.2 GB. Free memory was 938.1 MB in the beginning and 931.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-10-26 20:01:35,823 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, 53 locations, 1 error locations. UNSAFE Result, 10.3s OverallTime, 13 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67584 SDtfs, 41072 SDslu, 35828 SDs, 0 SdLazy, 121328 SolverSat, 24164 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2183 GetRequests, 1945 SyntacticMatches, 76 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11244 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 49934 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 4/46 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: 652]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] EXPR, FCALL malloc(sizeof(struct node)) [L627] List a = (List) malloc(sizeof(struct node)); [L628] COND FALSE !(a == 0) [L629] List t; [L630] List p = a; [L631] COND TRUE __VERIFIER_nondet_int() [L632] FCALL p->h = 1 [L633] EXPR, FCALL malloc(sizeof(struct node)) [L633] t = (List) malloc(sizeof(struct node)) [L634] COND FALSE !(t == 0) [L635] FCALL p->n = t [L636] EXPR, FCALL p->n [L636] p = p->n [L631] COND FALSE !(__VERIFIER_nondet_int()) [L638] COND TRUE __VERIFIER_nondet_int() [L639] FCALL p->h = 2 [L640] EXPR, FCALL malloc(sizeof(struct node)) [L640] t = (List) malloc(sizeof(struct node)) [L641] COND FALSE !(t == 0) [L642] FCALL p->n = t [L643] EXPR, FCALL p->n [L643] p = p->n [L638] COND FALSE !(__VERIFIER_nondet_int()) [L645] FCALL p->h = 3 [L646] p = a [L647] EXPR, FCALL p->h [L647] COND FALSE !(p->h == 2) [L649] EXPR, FCALL p->h [L649] COND TRUE p->h == 1 [L650] EXPR, FCALL p->n [L650] p = p->n [L649] EXPR, FCALL p->h [L649] COND FALSE !(p->h == 1) [L651] EXPR, FCALL p->h [L651] COND TRUE p->h != 3 [L652] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.23 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 933.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 933.7 MB in the beginning and 1.2 GB in the end (delta: -217.7 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 786.86 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * CodeCheck took 10402.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 938.1 MB in the end (delta: 169.4 MB). Peak memory consumption was 227.1 MB. Max. memory is 11.5 GB. * Witness Printer took 70.96 ms. Allocated memory is still 1.2 GB. Free memory was 938.1 MB in the beginning and 931.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...