./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.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_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/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 f8b5e0e0e65d6846584e1e0ff807dc6d17c7a0bd ......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 02:13:35,560 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 02:13:35,561 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 02:13:35,568 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 02:13:35,568 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 02:13:35,569 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 02:13:35,570 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 02:13:35,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 02:13:35,572 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 02:13:35,572 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 02:13:35,573 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 02:13:35,573 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 02:13:35,574 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 02:13:35,574 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 02:13:35,575 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 02:13:35,576 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 02:13:35,576 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 02:13:35,577 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 02:13:35,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 02:13:35,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 02:13:35,580 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 02:13:35,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 02:13:35,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 02:13:35,583 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 02:13:35,583 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 02:13:35,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 02:13:35,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 02:13:35,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 02:13:35,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 02:13:35,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 02:13:35,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 02:13:35,586 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 02:13:35,586 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 02:13:35,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 02:13:35,587 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 02:13:35,588 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 02:13:35,588 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 02:13:35,597 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 02:13:35,598 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 02:13:35,598 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 02:13:35,598 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 02:13:35,599 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 02:13:35,599 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 02:13:35,599 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 02:13:35,599 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 02:13:35,599 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 02:13:35,599 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 02:13:35,600 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 02:13:35,600 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 02:13:35,600 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 02:13:35,600 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 02:13:35,600 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 02:13:35,600 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 02:13:35,600 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 02:13:35,600 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 02:13:35,601 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 02:13:35,601 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 02:13:35,601 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 02:13:35,601 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 02:13:35,601 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 02:13:35,601 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 02:13:35,601 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 02:13:35,602 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 02:13:35,602 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 02:13:35,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 02:13:35,602 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_9c99b9b4-90cc-4164-bb60-4bc734e63747/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 -> f8b5e0e0e65d6846584e1e0ff807dc6d17c7a0bd [2018-11-10 02:13:35,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 02:13:35,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 02:13:35,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 02:13:35,637 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 02:13:35,637 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 02:13:35,638 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/../../sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-10 02:13:35,673 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/data/dd8bbd942/dbb49c788077462a82b81bf7e1deefd8/FLAG755d7dbe1 [2018-11-10 02:13:36,114 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 02:13:36,114 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/sv-benchmarks/c/list-simple/dll2c_remove_all_true-unreach-call_true-valid-memsafety.i [2018-11-10 02:13:36,124 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/data/dd8bbd942/dbb49c788077462a82b81bf7e1deefd8/FLAG755d7dbe1 [2018-11-10 02:13:36,133 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/data/dd8bbd942/dbb49c788077462a82b81bf7e1deefd8 [2018-11-10 02:13:36,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 02:13:36,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 02:13:36,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 02:13:36,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 02:13:36,141 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 02:13:36,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff31fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36, skipping insertion in model container [2018-11-10 02:13:36,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 02:13:36,182 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 02:13:36,365 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:13:36,373 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 02:13:36,405 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:13:36,434 INFO L193 MainTranslator]: Completed translation [2018-11-10 02:13:36,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36 WrapperNode [2018-11-10 02:13:36,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 02:13:36,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 02:13:36,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 02:13:36,435 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 02:13:36,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 02:13:36,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 02:13:36,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 02:13:36,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 02:13:36,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... [2018-11-10 02:13:36,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 02:13:36,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 02:13:36,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 02:13:36,527 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 02:13:36,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:13:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/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 02:13:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 02:13:36,562 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-10 02:13:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-10 02:13:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 02:13:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 02:13:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 02:13:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 02:13:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 02:13:37,052 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 02:13:37,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:13:37 BoogieIcfgContainer [2018-11-10 02:13:37,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 02:13:37,053 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 02:13:37,053 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 02:13:37,059 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 02:13:37,059 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:13:37" (1/1) ... [2018-11-10 02:13:37,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:13:37,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2018-11-10 02:13:37,092 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2018-11-10 02:13:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 02:13:37,096 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:37,192 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 02:13:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:37,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-11-10 02:13:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-10 02:13:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 02:13:37,202 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:37,263 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 02:13:37,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:37,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 26 transitions. [2018-11-10 02:13:37,306 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-11-10 02:13:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 02:13:37,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 02:13:37,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:37,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 25 states and 29 transitions. [2018-11-10 02:13:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-10 02:13:37,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 02:13:37,579 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:37,674 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 02:13:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 32 transitions. [2018-11-10 02:13:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2018-11-10 02:13:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 02:13:37,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:38,556 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 02:13:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 64 transitions. [2018-11-10 02:13:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2018-11-10 02:13:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 02:13:40,622 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 02:13:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 43 states and 65 transitions. [2018-11-10 02:13:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 65 transitions. [2018-11-10 02:13:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 02:13:41,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 02:13:41,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 67 transitions. [2018-11-10 02:13:41,284 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2018-11-10 02:13:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 02:13:41,285 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 02:13:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:41,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 47 states and 71 transitions. [2018-11-10 02:13:41,719 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 71 transitions. [2018-11-10 02:13:41,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 02:13:41,719 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 02:13:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:13:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 02:13:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 02:13:42,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 24 states and 24 transitions. [2018-11-10 02:13:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-10 02:13:42,024 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 02:13:42,024 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2018-11-10 02:13:42,032 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-10 02:13:42,141 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 02:13:42,143 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 02:13:42,143 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 02:13:42,143 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 02:13:42,143 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 02:13:42,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 02:13:42 ImpRootNode [2018-11-10 02:13:42,144 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 02:13:42,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 02:13:42,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 02:13:42,144 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 02:13:42,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:13:37" (3/4) ... [2018-11-10 02:13:42,147 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 02:13:42,151 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2018-11-10 02:13:42,153 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-11-10 02:13:42,154 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 02:13:42,154 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 02:13:42,154 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 02:13:42,192 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9c99b9b4-90cc-4164-bb60-4bc734e63747/bin-2019/ukojak/witness.graphml [2018-11-10 02:13:42,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 02:13:42,193 INFO L168 Benchmark]: Toolchain (without parser) took 6057.37 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 320.3 MB). Free memory was 952.2 MB in the beginning and 1.3 GB in the end (delta: -312.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:13:42,194 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:13:42,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.21 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 925.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 02:13:42,194 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 925.3 MB in the beginning and 1.1 GB in the end (delta: -220.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:13:42,195 INFO L168 Benchmark]: Boogie Preprocessor took 21.06 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. [2018-11-10 02:13:42,195 INFO L168 Benchmark]: RCFGBuilder took 525.93 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: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. [2018-11-10 02:13:42,195 INFO L168 Benchmark]: CodeCheck took 5090.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -192.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:13:42,195 INFO L168 Benchmark]: Witness Printer took 48.78 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:13:42,196 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 2 procedures, 63 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 10 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8768 SDtfs, 4324 SDslu, 4072 SDs, 0 SdLazy, 11450 SolverSat, 2618 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1847 GetRequests, 1723 SyntacticMatches, 14 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4376 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 31842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 89/114 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 - PositiveResult [Line: 616]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.21 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 925.3 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 925.3 MB in the beginning and 1.1 GB in the end (delta: -220.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.06 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 525.93 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: 62.4 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. * CodeCheck took 5090.88 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -192.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 48.78 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...