./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-token_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_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/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 60dcf5da7f0124de96473d8010137f60c5cb2803 ........................................................................................................................................................................................................................................................... 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 [2018-12-03 00:28:22,457 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 00:28:22,458 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 00:28:22,466 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 00:28:22,466 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 00:28:22,467 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 00:28:22,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 00:28:22,468 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 00:28:22,469 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 00:28:22,470 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 00:28:22,470 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 00:28:22,470 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 00:28:22,471 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 00:28:22,472 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 00:28:22,472 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 00:28:22,473 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 00:28:22,473 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 00:28:22,475 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 00:28:22,476 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 00:28:22,477 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 00:28:22,478 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 00:28:22,478 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 00:28:22,480 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 00:28:22,480 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 00:28:22,480 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 00:28:22,481 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 00:28:22,482 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 00:28:22,482 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 00:28:22,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 00:28:22,483 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 00:28:22,483 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 00:28:22,483 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 00:28:22,484 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 00:28:22,484 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 00:28:22,484 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 00:28:22,485 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 00:28:22,485 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-03 00:28:22,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 00:28:22,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 00:28:22,493 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 00:28:22,493 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-03 00:28:22,494 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 00:28:22,494 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 00:28:22,494 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 00:28:22,494 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 00:28:22,494 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 00:28:22,494 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 00:28:22,494 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 00:28:22,495 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 00:28:22,495 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 00:28:22,495 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 00:28:22,495 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 00:28:22,495 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 00:28:22,495 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 00:28:22,495 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 00:28:22,496 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-03 00:28:22,496 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-03 00:28:22,496 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 00:28:22,496 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 00:28:22,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-03 00:28:22,496 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 00:28:22,497 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 00:28:22,497 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 00:28:22,497 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-03 00:28:22,497 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 00:28:22,497 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 00:28:22,497 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_64554aeb-a44e-4e8f-8615-e74906af1e4a/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 -> 60dcf5da7f0124de96473d8010137f60c5cb2803 [2018-12-03 00:28:22,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 00:28:22,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 00:28:22,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 00:28:22,529 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 00:28:22,529 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 00:28:22,529 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-12-03 00:28:22,568 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/data/b3a3a69b3/08a0469309384ef395411f60769cd95d/FLAGebb08ad79 [2018-12-03 00:28:22,998 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 00:28:22,998 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-12-03 00:28:23,004 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/data/b3a3a69b3/08a0469309384ef395411f60769cd95d/FLAGebb08ad79 [2018-12-03 00:28:23,012 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/data/b3a3a69b3/08a0469309384ef395411f60769cd95d [2018-12-03 00:28:23,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 00:28:23,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 00:28:23,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 00:28:23,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 00:28:23,017 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 00:28:23,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3629c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23, skipping insertion in model container [2018-12-03 00:28:23,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 00:28:23,049 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 00:28:23,188 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 00:28:23,225 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 00:28:23,258 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 00:28:23,282 INFO L195 MainTranslator]: Completed translation [2018-12-03 00:28:23,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23 WrapperNode [2018-12-03 00:28:23,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 00:28:23,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 00:28:23,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 00:28:23,283 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 00:28:23,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 00:28:23,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 00:28:23,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 00:28:23,313 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 00:28:23,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 00:28:23,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 00:28:23,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 00:28:23,337 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 00:28:23,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:28:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/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 [2018-12-03 00:28:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 00:28:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 00:28:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 00:28:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-03 00:28:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-03 00:28:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 00:28:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 00:28:23,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 00:28:23,568 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 00:28:23,568 INFO L280 CfgBuilder]: Removed 19 assue(true) statements. [2018-12-03 00:28:23,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:28:23 BoogieIcfgContainer [2018-12-03 00:28:23,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 00:28:23,569 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-03 00:28:23,569 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-03 00:28:23,578 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-03 00:28:23,579 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:28:23" (1/1) ... [2018-12-03 00:28:23,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 00:28:23,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:28:23,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 64 transitions. [2018-12-03 00:28:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2018-12-03 00:28:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-03 00:28:23,619 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:28:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:28:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:28:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:28:23,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2018-12-03 00:28:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2018-12-03 00:28:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-03 00:28:23,697 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:28:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:28:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:28:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:28:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 39 states and 55 transitions. [2018-12-03 00:28:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2018-12-03 00:28:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 00:28:23,752 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:28:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:28:23,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:28:23,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:28:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2018-12-03 00:28:23,823 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2018-12-03 00:28:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 00:28:23,823 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:28:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:28:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 00:28:23,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:28:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2018-12-03 00:28:23,841 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-12-03 00:28:23,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 00:28:23,841 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:28:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 00:28:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-03 00:28:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-03 00:28:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2018-12-03 00:28:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2018-12-03 00:28:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-03 00:28:23,912 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-03 00:28:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 00:28:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 00:28:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 00:28:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 00:28:23,976 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-12-03 00:28:23,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:28:23 ImpRootNode [2018-12-03 00:28:23,994 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-03 00:28:23,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 00:28:23,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 00:28:23,994 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 00:28:23,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:28:23" (3/4) ... [2018-12-03 00:28:23,996 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 00:28:24,021 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_64554aeb-a44e-4e8f-8615-e74906af1e4a/bin-2019/ukojak/witness.graphml [2018-12-03 00:28:24,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 00:28:24,022 INFO L168 Benchmark]: Toolchain (without parser) took 1007.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -76.0 MB). Peak memory consumption was 63.4 MB. Max. memory is 11.5 GB. [2018-12-03 00:28:24,023 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 00:28:24,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-12-03 00:28:24,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.28 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. [2018-12-03 00:28:24,024 INFO L168 Benchmark]: Boogie Preprocessor took 23.46 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 00:28:24,024 INFO L168 Benchmark]: RCFGBuilder took 232.04 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-03 00:28:24,024 INFO L168 Benchmark]: CodeCheck took 424.81 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2018-12-03 00:28:24,024 INFO L168 Benchmark]: Witness Printer took 27.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 00:28:24,026 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, 44 locations, 6 error locations. UNSAFE Result, 0.3s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 224 SDtfs, 44 SDslu, 52 SDs, 0 SdLazy, 160 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1020]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* head = malloc(sizeof(SLL)); [L993] head->next = ((void*)0) [L994] head->data = 0 [L996] SLL* x = head; [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] x->data = 1 [L1008] x->next = malloc(sizeof(SLL)) [L1009] EXPR x->next [L1009] x->next->data = 2 [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1015] EXPR x->data [L1015] COND FALSE !(1 != x->data) [L1020] EXPR x->data [L1020] COND TRUE !(2 == x->data) [L1020] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.28 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. * Boogie Preprocessor took 23.46 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 232.04 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * CodeCheck took 424.81 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: 52.3 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. * Witness Printer took 27.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...