./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/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_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/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 0.1.23-5842f4b [2018-11-18 17:44:28,025 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:44:28,026 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:44:28,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:44:28,035 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:44:28,036 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:44:28,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:44:28,038 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:44:28,039 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:44:28,040 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:44:28,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:44:28,040 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:44:28,041 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:44:28,042 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:44:28,043 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:44:28,044 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:44:28,044 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:44:28,046 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:44:28,047 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:44:28,048 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:44:28,049 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:44:28,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:44:28,051 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:44:28,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:44:28,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:44:28,052 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:44:28,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:44:28,054 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:44:28,055 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:44:28,056 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:44:28,056 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:44:28,057 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:44:28,057 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:44:28,057 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:44:28,058 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:44:28,058 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:44:28,058 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 17:44:28,069 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:44:28,069 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:44:28,070 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:44:28,070 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 17:44:28,071 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:44:28,071 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:44:28,071 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:44:28,071 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:44:28,071 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:44:28,071 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:44:28,072 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:44:28,072 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:44:28,072 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:44:28,072 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:44:28,072 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:44:28,072 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:44:28,072 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:44:28,073 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:44:28,073 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 17:44:28,073 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 17:44:28,073 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:44:28,073 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:44:28,073 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 17:44:28,073 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:44:28,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:44:28,074 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:44:28,074 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 17:44:28,074 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:44:28,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:44:28,077 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_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/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 [2018-11-18 17:44:28,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:44:28,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:44:28,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:44:28,114 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:44:28,114 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:44:28,115 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:44:28,155 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/data/e7d566ae7/709689fb404547468707b896f554a0df/FLAG51755d2d1 [2018-11-18 17:44:28,529 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:44:28,529 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-18 17:44:28,537 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/data/e7d566ae7/709689fb404547468707b896f554a0df/FLAG51755d2d1 [2018-11-18 17:44:28,913 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/data/e7d566ae7/709689fb404547468707b896f554a0df [2018-11-18 17:44:28,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:44:28,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:44:28,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:44:28,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:44:28,918 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:44:28,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:44:28" (1/1) ... [2018-11-18 17:44:28,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aef1421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:28, skipping insertion in model container [2018-11-18 17:44:28,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:44:28" (1/1) ... [2018-11-18 17:44:28,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:44:28,953 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:44:29,134 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:44:29,141 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:44:29,172 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:44:29,247 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:44:29,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29 WrapperNode [2018-11-18 17:44:29,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:44:29,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:44:29,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:44:29,248 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:44:29,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:44:29,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:44:29,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:44:29,277 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:44:29,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:44:29,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:44:29,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:44:29,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:44:29,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:44:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/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 17:44:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:44:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:44:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 17:44:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 17:44:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 17:44:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:44:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:44:29,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:44:29,627 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:44:29,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:44:29 BoogieIcfgContainer [2018-11-18 17:44:29,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:44:29,629 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 17:44:29,629 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 17:44:29,636 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 17:44:29,636 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:44:29" (1/1) ... [2018-11-18 17:44:29,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:44:29,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:44:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 43 states and 66 transitions. [2018-11-18 17:44:29,666 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2018-11-18 17:44:29,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 17:44:29,669 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:44:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:44:29,772 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 17:44:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:44:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2018-11-18 17:44:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2018-11-18 17:44:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 17:44:29,781 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:44:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:44:29,817 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 17:44:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:44:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 41 states and 57 transitions. [2018-11-18 17:44:29,844 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2018-11-18 17:44:29,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:44:29,845 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:44:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:44:29,891 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 17:44:29,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:44:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 64 transitions. [2018-11-18 17:44:29,918 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2018-11-18 17:44:29,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 17:44:29,919 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:44:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:44:29,935 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 17:44:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:44:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 60 transitions. [2018-11-18 17:44:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-11-18 17:44:29,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 17:44:29,939 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:44:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:44:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:44:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:44:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:44:30,014 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2018-11-18 17:44:30,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 05:44:30 ImpRootNode [2018-11-18 17:44:30,039 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 17:44:30,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:44:30,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:44:30,040 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:44:30,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:44:29" (3/4) ... [2018-11-18 17:44:30,042 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 17:44:30,076 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dc6bc2d7-05f3-4a77-878e-f69a7fe1eba7/bin-2019/ukojak/witness.graphml [2018-11-18 17:44:30,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:44:30,077 INFO L168 Benchmark]: Toolchain (without parser) took 1161.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -111.2 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:44:30,078 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:44:30,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:44:30,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.76 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:44:30,079 INFO L168 Benchmark]: Boogie Preprocessor took 22.49 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. [2018-11-18 17:44:30,079 INFO L168 Benchmark]: RCFGBuilder took 328.26 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:44:30,080 INFO L168 Benchmark]: CodeCheck took 411.00 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:44:30,080 INFO L168 Benchmark]: Witness Printer took 36.30 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. [2018-11-18 17:44:30,083 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, 49 locations, 6 error locations. UNSAFE Result, 0.3s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 144 SDtfs, 40 SDslu, 48 SDs, 0 SdLazy, 72 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 1020]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] EXPR, FCALL malloc(sizeof(SLL)) [L992] SLL* head = malloc(sizeof(SLL)); [L993] FCALL head->next = ((void*)0) [L994] FCALL head->data = 0 [L996] SLL* x = head; [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] FCALL x->data = 1 [L1008] EXPR, FCALL malloc(sizeof(SLL)) [L1008] FCALL x->next = malloc(sizeof(SLL)) [L1009] EXPR, FCALL x->next [L1009] FCALL x->next->data = 2 [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1013] COND FALSE !(0) [L1015] EXPR, FCALL x->data [L1015] COND FALSE !(1 != x->data) [L1020] EXPR, FCALL 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.76 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 328.26 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: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * CodeCheck took 411.00 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Witness Printer took 36.30 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. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...