./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/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 b651d63eb42259dfd3a213a6671e4c58ee528ad0 .................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:08:39,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:08:39,723 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:08:39,729 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:08:39,729 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:08:39,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:08:39,730 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:08:39,731 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:08:39,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:08:39,733 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:08:39,733 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:08:39,733 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:08:39,734 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:08:39,735 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:08:39,735 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:08:39,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:08:39,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:08:39,738 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:08:39,739 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:08:39,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:08:39,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:08:39,742 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:08:39,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:08:39,744 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:08:39,744 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:08:39,744 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:08:39,745 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:08:39,746 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:08:39,746 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:08:39,747 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:08:39,747 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:08:39,747 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:08:39,747 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:08:39,748 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:08:39,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:08:39,749 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:08:39,749 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 07:08:39,756 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:08:39,757 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:08:39,757 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:08:39,757 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:08:39,758 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:08:39,758 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:08:39,758 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:08:39,758 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:08:39,758 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:08:39,759 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:08:39,760 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 07:08:39,760 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 07:08:39,760 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:08:39,760 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:08:39,760 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 07:08:39,760 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:08:39,760 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:08:39,761 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:08:39,761 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 07:08:39,761 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:08:39,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:08:39,761 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_d8249e2d-2e60-4856-baf2-48b9456108c5/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 -> b651d63eb42259dfd3a213a6671e4c58ee528ad0 [2018-11-10 07:08:39,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:08:39,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:08:39,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:08:39,797 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:08:39,798 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:08:39,799 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:08:39,839 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/data/1951276fc/cbf4e6729e0a4e11865009fc4035e7e6/FLAG5aad94119 [2018-11-10 07:08:40,259 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:08:40,259 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/sv-benchmarks/c/forester-heap/sll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-10 07:08:40,265 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/data/1951276fc/cbf4e6729e0a4e11865009fc4035e7e6/FLAG5aad94119 [2018-11-10 07:08:40,275 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/data/1951276fc/cbf4e6729e0a4e11865009fc4035e7e6 [2018-11-10 07:08:40,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:08:40,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:08:40,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:08:40,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:08:40,280 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:08:40,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126fd608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40, skipping insertion in model container [2018-11-10 07:08:40,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:08:40,316 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:08:40,487 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:08:40,494 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:08:40,524 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:08:40,554 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:08:40,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40 WrapperNode [2018-11-10 07:08:40,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:08:40,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:08:40,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:08:40,555 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:08:40,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:08:40,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:08:40,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:08:40,628 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:08:40,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... [2018-11-10 07:08:40,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:08:40,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:08:40,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:08:40,650 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:08:40,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 07:08:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 07:08:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 07:08:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 07:08:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 07:08:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 07:08:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 07:08:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:08:40,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:08:41,081 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:08:41,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:41 BoogieIcfgContainer [2018-11-10 07:08:41,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:08:41,083 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 07:08:41,083 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 07:08:41,090 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 07:08:41,090 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:41" (1/1) ... [2018-11-10 07:08:41,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:41,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:08:41,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2018-11-10 07:08:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2018-11-10 07:08:41,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 07:08:41,123 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:08:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:08:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2018-11-10 07:08:41,207 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2018-11-10 07:08:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 07:08:41,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:08:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:08:41,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2018-11-10 07:08:41,312 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2018-11-10 07:08:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 07:08:41,313 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:08:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:41,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:41,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:08:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 39 states and 54 transitions. [2018-11-10 07:08:41,376 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2018-11-10 07:08:41,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 07:08:41,378 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:08:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:08:41,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2018-11-10 07:08:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2018-11-10 07:08:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:08:41,405 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:08:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:41,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:08:41,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 43 states and 60 transitions. [2018-11-10 07:08:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2018-11-10 07:08:41,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 07:08:41,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:08:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:41,638 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-11-10 07:08:41,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 07:08:41 ImpRootNode [2018-11-10 07:08:41,661 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 07:08:41,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:08:41,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:08:41,662 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:08:41,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:41" (3/4) ... [2018-11-10 07:08:41,664 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:08:41,694 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d8249e2d-2e60-4856-baf2-48b9456108c5/bin-2019/ukojak/witness.graphml [2018-11-10 07:08:41,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:08:41,694 INFO L168 Benchmark]: Toolchain (without parser) took 1417.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 957.6 MB in the beginning and 1.0 GB in the end (delta: -63.4 MB). Peak memory consumption was 75.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:41,695 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:08:41,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.23 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:41,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:41,697 INFO L168 Benchmark]: Boogie Preprocessor took 21.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:41,698 INFO L168 Benchmark]: RCFGBuilder took 432.93 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:41,698 INFO L168 Benchmark]: CodeCheck took 578.67 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:41,699 INFO L168 Benchmark]: Witness Printer took 32.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:08:41,701 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, 64 locations, 3 error locations. UNSAFE Result, 0.5s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 320 SDtfs, 168 SDslu, 268 SDs, 0 SdLazy, 250 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 693 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 1021]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data [L1021] EXPR, FCALL x->data [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data [L1021] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1021] __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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.23 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 933.5 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.27 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 432.93 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * CodeCheck took 578.67 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...