./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-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_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-circular_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/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 95b20088216028e3d05e3cb41d4ed5c20af6a751 ................................................................................................................................................................................................................................................................. 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 05:50:13,047 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:50:13,048 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:50:13,057 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:50:13,057 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:50:13,057 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:50:13,058 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:50:13,059 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:50:13,061 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:50:13,061 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:50:13,062 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:50:13,062 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:50:13,063 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:50:13,063 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:50:13,064 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:50:13,065 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:50:13,065 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:50:13,067 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:50:13,068 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:50:13,069 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:50:13,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:50:13,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:50:13,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:50:13,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:50:13,073 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:50:13,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:50:13,074 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:50:13,075 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:50:13,075 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:50:13,076 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:50:13,076 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:50:13,077 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:50:13,077 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:50:13,077 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:50:13,078 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:50:13,078 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:50:13,078 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 05:50:13,087 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:50:13,087 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:50:13,088 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:50:13,088 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:50:13,088 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:50:13,089 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:50:13,089 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:50:13,089 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:50:13,089 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:50:13,089 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:50:13,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:50:13,089 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:50:13,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:50:13,090 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:50:13,090 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:50:13,090 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:50:13,090 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:50:13,090 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 05:50:13,090 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 05:50:13,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:50:13,091 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:50:13,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 05:50:13,091 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:50:13,091 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:50:13,091 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:50:13,092 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 05:50:13,092 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:50:13,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:50:13,092 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_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/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 -> 95b20088216028e3d05e3cb41d4ed5c20af6a751 [2018-11-10 05:50:13,116 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:50:13,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:50:13,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:50:13,129 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:50:13,129 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:50:13,130 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/dll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-10 05:50:13,174 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/data/3f6e71f5e/666f1993af8a4108b8971756259901e0/FLAG91799aa2f [2018-11-10 05:50:13,504 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:50:13,505 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/sv-benchmarks/c/forester-heap/dll-circular_false-unreach-call_false-valid-memcleanup.i [2018-11-10 05:50:13,513 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/data/3f6e71f5e/666f1993af8a4108b8971756259901e0/FLAG91799aa2f [2018-11-10 05:50:13,522 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/data/3f6e71f5e/666f1993af8a4108b8971756259901e0 [2018-11-10 05:50:13,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:50:13,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:50:13,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:50:13,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:50:13,528 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:50:13,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9bb135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13, skipping insertion in model container [2018-11-10 05:50:13,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:50:13,563 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:50:13,741 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:50:13,748 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:50:13,778 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:50:13,800 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:50:13,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13 WrapperNode [2018-11-10 05:50:13,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:50:13,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:50:13,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:50:13,801 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:50:13,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:50:13,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:50:13,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:50:13,874 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:50:13,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... [2018-11-10 05:50:13,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:50:13,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:50:13,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:50:13,893 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:50:13,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:50:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/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 05:50:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 05:50:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 05:50:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 05:50:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 05:50:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 05:50:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 05:50:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:50:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:50:14,398 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:50:14,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:50:14 BoogieIcfgContainer [2018-11-10 05:50:14,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:50:14,399 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 05:50:14,399 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 05:50:14,407 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 05:50:14,407 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:50:14" (1/1) ... [2018-11-10 05:50:14,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:50:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:50:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2018-11-10 05:50:14,439 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2018-11-10 05:50:14,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 05:50:14,441 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:50:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:50:14,518 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 05:50:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:50:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2018-11-10 05:50:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2018-11-10 05:50:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 05:50:14,526 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:50:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:50:14,590 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 05:50:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:50:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2018-11-10 05:50:14,628 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2018-11-10 05:50:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 05:50:14,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:50:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:50:14,721 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 05:50:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:50:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 41 states and 58 transitions. [2018-11-10 05:50:14,801 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2018-11-10 05:50:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 05:50:14,803 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:50:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:50:14,842 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 05:50:14,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:50:14,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 41 states and 57 transitions. [2018-11-10 05:50:14,850 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2018-11-10 05:50:14,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:50:14,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:50:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:50:14,895 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 05:50:15,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:50:15,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 45 states and 65 transitions. [2018-11-10 05:50:15,021 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2018-11-10 05:50:15,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 05:50:15,022 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:50:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:50:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:50:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:50:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:50:15,101 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-11-10 05:50:15,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 05:50:15 ImpRootNode [2018-11-10 05:50:15,127 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 05:50:15,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:50:15,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:50:15,128 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:50:15,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:50:14" (3/4) ... [2018-11-10 05:50:15,130 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:50:15,167 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4cfcc3ca-867c-4867-ae2b-b867003a8e9f/bin-2019/ukojak/witness.graphml [2018-11-10 05:50:15,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:50:15,168 INFO L168 Benchmark]: Toolchain (without parser) took 1642.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -53.6 MB). Peak memory consumption was 110.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:50:15,169 INFO L168 Benchmark]: CDTParser took 0.14 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 05:50:15,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.84 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 932.4 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:50:15,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 932.4 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:50:15,171 INFO L168 Benchmark]: Boogie Preprocessor took 18.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:50:15,171 INFO L168 Benchmark]: RCFGBuilder took 506.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:50:15,172 INFO L168 Benchmark]: CodeCheck took 727.66 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: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:50:15,172 INFO L168 Benchmark]: Witness Printer took 40.05 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:50:15,175 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, 67 locations, 3 error locations. UNSAFE Result, 0.6s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 320 SDtfs, 184 SDslu, 332 SDs, 0 SdLazy, 286 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 320 GetRequests, 296 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 993 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: 1023]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] EXPR, FCALL malloc(sizeof(SLL)) [L986] SLL* head = malloc(sizeof(SLL)); [L987] FCALL head->next = head [L988] FCALL head->data = 0 [L990] SLL* x = head; [L991] int state = 1; [L994] COND FALSE !(__VERIFIER_nondet_int()) [L1016] FCALL x->data = state [L1018] EXPR, FCALL head->next [L1018] x = head->next [L1019] COND FALSE !(!(((void*)0) != x)) [L1019] COND FALSE !(0) [L1021] EXPR, FCALL x->data [L1021] COND TRUE x->data != 0 [L1023] EXPR, FCALL x->next [L1023] EXPR, FCALL x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] EXPR, FCALL x->data [L1023] EXPR, FCALL x->next [L1023] EXPR, FCALL x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1023] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 274.84 ms. Allocated memory is still 1.0 GB. Free memory was 956.6 MB in the beginning and 932.4 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 72.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 932.4 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 506.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. * CodeCheck took 727.66 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: 91.8 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.05 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...