./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/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 534681b11e8e68e6058985d885b01f2cbfa43e5b ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 13:31:48,284 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:31:48,285 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:31:48,291 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:31:48,291 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:31:48,292 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:31:48,292 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:31:48,293 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:31:48,294 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:31:48,294 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:31:48,295 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:31:48,295 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:31:48,296 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:31:48,296 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:31:48,297 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:31:48,297 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:31:48,297 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:31:48,298 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:31:48,299 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:31:48,300 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:31:48,300 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:31:48,301 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:31:48,302 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:31:48,302 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:31:48,302 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:31:48,303 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:31:48,303 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:31:48,304 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:31:48,304 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:31:48,304 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:31:48,305 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:31:48,305 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:31:48,305 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:31:48,305 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:31:48,306 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:31:48,306 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:31:48,306 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-08 13:31:48,313 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:31:48,313 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:31:48,314 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 13:31:48,314 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-08 13:31:48,314 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:31:48,314 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:31:48,314 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:31:48,314 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:31:48,315 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 13:31:48,315 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 13:31:48,316 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 13:31:48,316 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 13:31:48,316 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 13:31:48,316 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_f2bf8fad-27e8-46fc-b3c4-587328199959/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 -> 534681b11e8e68e6058985d885b01f2cbfa43e5b [2018-12-08 13:31:48,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:31:48,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:31:48,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:31:48,346 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:31:48,347 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:31:48,347 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-08 13:31:48,390 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/data/0756de3ed/07262991fc094b2b9ba1aa4e704739f3/FLAG7b419365f [2018-12-08 13:31:48,703 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:31:48,704 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-12-08 13:31:48,710 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/data/0756de3ed/07262991fc094b2b9ba1aa4e704739f3/FLAG7b419365f [2018-12-08 13:31:48,718 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/data/0756de3ed/07262991fc094b2b9ba1aa4e704739f3 [2018-12-08 13:31:48,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:31:48,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:31:48,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:31:48,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:31:48,723 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:31:48,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:31:48" (1/1) ... [2018-12-08 13:31:48,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417514c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:48, skipping insertion in model container [2018-12-08 13:31:48,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:31:48" (1/1) ... [2018-12-08 13:31:48,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:31:48,748 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:31:48,902 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:31:48,946 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:31:48,981 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:31:49,011 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:31:49,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49 WrapperNode [2018-12-08 13:31:49,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:31:49,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:31:49,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:31:49,012 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:31:49,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:31:49,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:31:49,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:31:49,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:31:49,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:31:49,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:31:49,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:31:49,063 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:31:49,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:31:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 13:31:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 13:31:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 13:31:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-12-08 13:31:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-12-08 13:31:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-12-08 13:31:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-12-08 13:31:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 13:31:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 13:31:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 13:31:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 13:31:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:31:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:31:49,499 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:31:49,500 INFO L280 CfgBuilder]: Removed 45 assue(true) statements. [2018-12-08 13:31:49,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:31:49 BoogieIcfgContainer [2018-12-08 13:31:49,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:31:49,500 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 13:31:49,501 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 13:31:49,509 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 13:31:49,509 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:31:49" (1/1) ... [2018-12-08 13:31:49,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:31:49,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 79 states and 145 transitions. [2018-12-08 13:31:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 145 transitions. [2018-12-08 13:31:49,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 13:31:49,546 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:49,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 78 states and 128 transitions. [2018-12-08 13:31:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 128 transitions. [2018-12-08 13:31:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 13:31:49,623 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:49,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:49,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:49,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 81 states and 131 transitions. [2018-12-08 13:31:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 131 transitions. [2018-12-08 13:31:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 13:31:49,693 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:49,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 80 states and 129 transitions. [2018-12-08 13:31:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 129 transitions. [2018-12-08 13:31:49,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 13:31:49,803 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 13:31:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:49,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 80 states and 126 transitions. [2018-12-08 13:31:49,823 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2018-12-08 13:31:49,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 13:31:49,823 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:49,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:49,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 83 states and 129 transitions. [2018-12-08 13:31:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2018-12-08 13:31:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 13:31:49,856 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:49,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 84 states and 130 transitions. [2018-12-08 13:31:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 130 transitions. [2018-12-08 13:31:49,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 13:31:49,881 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 13:31:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:50,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 87 states and 131 transitions. [2018-12-08 13:31:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 131 transitions. [2018-12-08 13:31:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 13:31:50,112 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 13:31:50,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 90 states and 132 transitions. [2018-12-08 13:31:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2018-12-08 13:31:50,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 13:31:50,194 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 99 states and 142 transitions. [2018-12-08 13:31:50,958 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 142 transitions. [2018-12-08 13:31:50,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 13:31:50,958 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:51,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 106 states and 148 transitions. [2018-12-08 13:31:51,330 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 148 transitions. [2018-12-08 13:31:51,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 13:31:51,331 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:31:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:31:52,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 13:31:52,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 113 states and 155 transitions. [2018-12-08 13:31:52,717 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2018-12-08 13:31:52,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 13:31:52,717 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 13:31:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:31:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:31:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:31:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 13:31:52,781 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2018-12-08 13:31:52,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 01:31:52 ImpRootNode [2018-12-08 13:31:52,804 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 13:31:52,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:31:52,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:31:52,805 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:31:52,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:31:49" (3/4) ... [2018-12-08 13:31:52,807 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 13:31:52,839 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f2bf8fad-27e8-46fc-b3c4-587328199959/bin-2019/ukojak/witness.graphml [2018-12-08 13:31:52,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:31:52,840 INFO L168 Benchmark]: Toolchain (without parser) took 4119.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 950.6 MB in the beginning and 818.4 MB in the end (delta: 132.2 MB). Peak memory consumption was 351.9 MB. Max. memory is 11.5 GB. [2018-12-08 13:31:52,841 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:31:52,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-08 13:31:52,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.75 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-08 13:31:52,842 INFO L168 Benchmark]: Boogie Preprocessor took 22.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:31:52,842 INFO L168 Benchmark]: RCFGBuilder took 436.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. [2018-12-08 13:31:52,842 INFO L168 Benchmark]: CodeCheck took 3303.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 818.4 MB in the end (delta: 230.9 MB). Peak memory consumption was 306.9 MB. Max. memory is 11.5 GB. [2018-12-08 13:31:52,843 INFO L168 Benchmark]: Witness Printer took 34.87 ms. Allocated memory is still 1.2 GB. Free memory is still 818.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:31:52,845 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 95 locations, 1 error locations. UNSAFE Result, 3.2s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30526 SDtfs, 7684 SDslu, 9540 SDs, 0 SdLazy, 14762 SolverSat, 7274 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1426 GetRequests, 1330 SyntacticMatches, 10 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2298 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 11919 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 16/18 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: [L627] struct list *data = ((void *)0); [L628] COND TRUE __VERIFIER_nondet_int() [L629] struct node *node = malloc(sizeof *node); [L630] COND FALSE !(!node) [L632] node->next = node [L633] node->value = __VERIFIER_nondet_int() [L634] struct list *item = malloc(sizeof *item); [L635] COND FALSE !(!item) [L637] item->slist = node [L638] item->next = data [L639] data = item [L628] COND FALSE !(__VERIFIER_nondet_int()) [L641] COND FALSE !(!data) [L604] COND FALSE !(!(shape)) [L605] shape->next [L605] COND FALSE !(shape->next) [L611] COND FALSE !(!(shape)) [L612] EXPR shape->next [L612] COND FALSE !(!(shape->next == ((void *)0))) [L613] EXPR shape->slist [L613] COND FALSE !(!(shape->slist)) [L614] EXPR shape->slist [L614] EXPR shape->slist->next [L614] COND TRUE !(shape->slist->next == ((void *)0)) [L614] CALL fail() [L554] __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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.75 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 436.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. * CodeCheck took 3303.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 818.4 MB in the end (delta: 230.9 MB). Peak memory consumption was 306.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.87 ms. Allocated memory is still 1.2 GB. Free memory is still 818.4 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...