./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/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 3d1a973dcd7009ffcd2eda1338249f4d290fb62a .......................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 12:50:21,465 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:50:21,467 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:50:21,474 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:50:21,474 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:50:21,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:50:21,475 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:50:21,476 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:50:21,477 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:50:21,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:50:21,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:50:21,479 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:50:21,479 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:50:21,480 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:50:21,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:50:21,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:50:21,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:50:21,483 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:50:21,484 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:50:21,485 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:50:21,486 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:50:21,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:50:21,488 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:50:21,488 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:50:21,488 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:50:21,489 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:50:21,489 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:50:21,490 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:50:21,490 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:50:21,491 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:50:21,491 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:50:21,492 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:50:21,492 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:50:21,492 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:50:21,493 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:50:21,494 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:50:21,494 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 12:50:21,502 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:50:21,503 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:50:21,503 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:50:21,504 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:50:21,504 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:50:21,504 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:50:21,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:50:21,505 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:50:21,505 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:50:21,505 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:50:21,505 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:50:21,505 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:50:21,505 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:50:21,505 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:50:21,506 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:50:21,506 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:50:21,506 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:50:21,506 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:50:21,506 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 12:50:21,506 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 12:50:21,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:50:21,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:50:21,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 12:50:21,507 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:50:21,507 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:50:21,507 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:50:21,507 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 12:50:21,508 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:50:21,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:50:21,508 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_a356cc51-f808-4f05-9162-491906511eae/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 -> 3d1a973dcd7009ffcd2eda1338249f4d290fb62a [2018-11-18 12:50:21,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:50:21,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:50:21,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:50:21,547 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:50:21,547 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:50:21,548 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-18 12:50:21,591 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/data/a9e393f03/39625f56e9934953928ff928779d6184/FLAG82d315f3a [2018-11-18 12:50:21,956 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:50:21,956 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/sv-benchmarks/c/forester-heap/dll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-11-18 12:50:21,963 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/data/a9e393f03/39625f56e9934953928ff928779d6184/FLAG82d315f3a [2018-11-18 12:50:21,975 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/data/a9e393f03/39625f56e9934953928ff928779d6184 [2018-11-18 12:50:21,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:50:21,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:50:21,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:50:21,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:50:21,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:50:21,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:50:21" (1/1) ... [2018-11-18 12:50:21,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7028a05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:21, skipping insertion in model container [2018-11-18 12:50:21,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:50:21" (1/1) ... [2018-11-18 12:50:21,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:50:22,031 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:50:22,254 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:50:22,262 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:50:22,301 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:50:22,382 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:50:22,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22 WrapperNode [2018-11-18 12:50:22,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:50:22,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:50:22,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:50:22,383 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:50:22,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:50:22,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:50:22,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:50:22,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:50:22,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:50:22,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:50:22,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:50:22,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:50:22,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:50:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/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 [2018-11-18 12:50:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:50:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:50:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:50:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 12:50:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 12:50:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:50:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:50:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:50:22,945 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:50:22,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:22 BoogieIcfgContainer [2018-11-18 12:50:22,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:50:22,946 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 12:50:22,946 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 12:50:22,955 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 12:50:22,956 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:22" (1/1) ... [2018-11-18 12:50:22,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:50:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:50:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 51 states and 80 transitions. [2018-11-18 12:50:22,990 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 80 transitions. [2018-11-18 12:50:22,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 12:50:22,992 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:50:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:50:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 76 transitions. [2018-11-18 12:50:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2018-11-18 12:50:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 12:50:23,092 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:50:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:50:23,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:50:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 53 states and 79 transitions. [2018-11-18 12:50:23,187 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions. [2018-11-18 12:50:23,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:50:23,187 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:50:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:50:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:50:23,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 77 transitions. [2018-11-18 12:50:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2018-11-18 12:50:23,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:50:23,428 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:50:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:50:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:50:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:50:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 51 states and 72 transitions. [2018-11-18 12:50:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2018-11-18 12:50:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:50:23,463 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:50:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:50:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:50:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:50:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:50:23,603 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2018-11-18 12:50:23,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 12:50:23 ImpRootNode [2018-11-18 12:50:23,629 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 12:50:23,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:50:23,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:50:23,630 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:50:23,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:50:22" (3/4) ... [2018-11-18 12:50:23,632 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 12:50:23,667 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a356cc51-f808-4f05-9162-491906511eae/bin-2019/ukojak/witness.graphml [2018-11-18 12:50:23,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:50:23,668 INFO L168 Benchmark]: Toolchain (without parser) took 1689.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.6 MB in the beginning and 988.6 MB in the end (delta: -32.0 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:23,669 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. [2018-11-18 12:50:23,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:23,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.56 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:23,670 INFO L168 Benchmark]: Boogie Preprocessor took 22.43 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. [2018-11-18 12:50:23,671 INFO L168 Benchmark]: RCFGBuilder took 503.96 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: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:23,671 INFO L168 Benchmark]: CodeCheck took 682.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.3 MB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:23,672 INFO L168 Benchmark]: Witness Printer took 37.83 ms. Allocated memory is still 1.2 GB. Free memory was 991.3 MB in the beginning and 988.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:50:23,674 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 65 locations, 6 error locations. UNSAFE Result, 0.6s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 48 SDslu, 56 SDs, 0 SdLazy, 152 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = ((void*)0) [L988] FCALL head->prev = ((void*)0) [L989] FCALL head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] EXPR, FCALL malloc(sizeof(SLL)) [L998] FCALL x->next = malloc(sizeof(SLL)) [L999] EXPR, FCALL x->next [L999] FCALL x->next->prev = x [L1000] EXPR, FCALL x->next [L1000] x = x->next [L1001] FCALL x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 [L1008] COND TRUE \read(marked) [L1009] FCALL x->data = 1 [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head [L1016] COND FALSE !(!(((void*)0) != x)) [L1016] COND FALSE !(0) [L1017] marked = 0 [L1019] EXPR, FCALL x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR, FCALL x->next [L1019] EXPR, FCALL x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR, FCALL x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR, FCALL x->next [L1026] x = x->next [L1027] EXPR, FCALL x->data [L1027] COND TRUE !(x->data != 1) [L1027] __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 403.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -159.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.56 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.43 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 503.96 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: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. * CodeCheck took 682.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.3 MB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.83 ms. Allocated memory is still 1.2 GB. Free memory was 991.3 MB in the beginning and 988.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...