./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1_false-unreach-call_false-valid-deref.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_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/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 3aee1e8d9b723b18f218b6c1185554e637930c5d ....................................................................................................................................................................................................................................................... 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 06:35:01,472 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:35:01,473 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:35:01,481 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:35:01,482 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:35:01,482 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:35:01,483 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:35:01,485 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:35:01,486 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:35:01,486 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:35:01,487 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:35:01,487 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:35:01,488 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:35:01,489 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:35:01,490 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:35:01,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:35:01,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:35:01,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:35:01,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:35:01,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:35:01,495 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:35:01,496 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:35:01,498 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:35:01,498 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:35:01,498 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:35:01,499 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:35:01,500 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:35:01,501 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:35:01,501 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:35:01,502 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:35:01,502 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:35:01,503 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:35:01,503 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:35:01,503 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:35:01,504 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:35:01,504 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:35:01,505 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 06:35:01,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:35:01,515 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:35:01,516 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:35:01,516 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 06:35:01,516 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:35:01,516 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:35:01,517 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:35:01,517 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:35:01,517 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:35:01,517 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:35:01,517 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:35:01,517 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:35:01,517 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:35:01,518 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:35:01,518 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:35:01,518 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:35:01,518 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:35:01,518 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 06:35:01,518 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 06:35:01,518 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:35:01,519 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:35:01,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 06:35:01,519 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:35:01,519 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:35:01,519 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:35:01,519 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 06:35:01,519 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:35:01,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:35:01,520 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_0d8029dc-e699-4fd9-8c29-94e14ed44673/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 -> 3aee1e8d9b723b18f218b6c1185554e637930c5d [2018-11-10 06:35:01,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:35:01,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:35:01,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:35:01,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:35:01,553 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:35:01,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-11-10 06:35:01,591 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/data/1fddb33f6/6e86e9bac1024e3788bd13e3485c4aa2/FLAG1c64f2306 [2018-11-10 06:35:02,030 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:35:02,031 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/sv-benchmarks/c/forester-heap/sll-rb-cnstr_1_false-unreach-call_false-valid-deref.i [2018-11-10 06:35:02,038 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/data/1fddb33f6/6e86e9bac1024e3788bd13e3485c4aa2/FLAG1c64f2306 [2018-11-10 06:35:02,047 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/data/1fddb33f6/6e86e9bac1024e3788bd13e3485c4aa2 [2018-11-10 06:35:02,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:35:02,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:35:02,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:35:02,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:35:02,052 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:35:02,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4588e12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02, skipping insertion in model container [2018-11-10 06:35:02,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:35:02,088 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:35:02,267 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:35:02,274 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:35:02,304 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:35:02,328 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:35:02,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02 WrapperNode [2018-11-10 06:35:02,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:35:02,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:35:02,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:35:02,329 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:35:02,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:35:02,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:35:02,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:35:02,405 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:35:02,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:02,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:35:02,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:35:02,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:35:02,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:35:02,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:35:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/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 06:35:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 06:35:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 06:35:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 06:35:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 06:35:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 06:35:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 06:35:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:35:02,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:35:02,991 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:35:02,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:35:02 BoogieIcfgContainer [2018-11-10 06:35:02,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:35:02,992 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 06:35:02,992 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 06:35:02,999 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 06:35:02,999 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:35:02" (1/1) ... [2018-11-10 06:35:03,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:35:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:35:03,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2018-11-10 06:35:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2018-11-10 06:35:03,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 06:35:03,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:35:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:35:03,122 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 06:35:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:35:03,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2018-11-10 06:35:03,130 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2018-11-10 06:35:03,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 06:35:03,130 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:35:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:35:03,180 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 06:35:03,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:35:03,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2018-11-10 06:35:03,222 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-11-10 06:35:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 06:35:03,222 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:35:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:35:03,301 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 06:35:03,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:35:03,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 41 transitions. [2018-11-10 06:35:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2018-11-10 06:35:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 06:35:03,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:35:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:35:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:35:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 06:35:03,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2018-11-10 06:35:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-11-10 06:35:03,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 06:35:03,857 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 06:35:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:35:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:35:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:35:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:35:03,932 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2018-11-10 06:35:03,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 06:35:03 ImpRootNode [2018-11-10 06:35:03,960 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 06:35:03,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:35:03,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:35:03,961 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:35:03,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:35:02" (3/4) ... [2018-11-10 06:35:03,964 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 06:35:04,002 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d8029dc-e699-4fd9-8c29-94e14ed44673/bin-2019/ukojak/witness.graphml [2018-11-10 06:35:04,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:35:04,003 INFO L168 Benchmark]: Toolchain (without parser) took 1954.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 956.6 MB in the beginning and 930.7 MB in the end (delta: 25.9 MB). Peak memory consumption was 142.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:35:04,005 INFO L168 Benchmark]: CDTParser took 0.11 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 06:35:04,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.38 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 06:35:04,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 932.4 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:35:04,006 INFO L168 Benchmark]: Boogie Preprocessor took 17.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:35:04,007 INFO L168 Benchmark]: RCFGBuilder took 569.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:35:04,007 INFO L168 Benchmark]: CodeCheck took 967.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 933.3 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:35:04,008 INFO L168 Benchmark]: Witness Printer took 42.12 ms. Allocated memory is still 1.1 GB. Free memory was 933.3 MB in the beginning and 930.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:35:04,012 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, 71 locations, 3 error locations. UNSAFE Result, 0.9s OverallTime, 5 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 132 SDtfs, 108 SDslu, 148 SDs, 0 SdLazy, 172 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 2096 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1038]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L995] EXPR, FCALL malloc(sizeof(SLL)) [L995] SLL* list = malloc(sizeof(SLL)); [L996] FCALL list->next = ((void*)0) [L997] FCALL list->colour = BLACK [L999] SLL* end = list; [L1002] COND FALSE !(__VERIFIER_nondet_int()) [L1023] end = ((void*)0) [L1024] end = list [L1027] COND FALSE !(!(((void*)0) != end)) [L1027] COND FALSE !(0) [L1028] EXPR, FCALL end->colour [L1028] COND FALSE !(!(BLACK == end->colour)) [L1028] COND FALSE !(0) [L1030] COND TRUE ((void*)0) != end [L1032] EXPR, FCALL end->colour [L1032] COND FALSE !(RED == end->colour) [L1038] EXPR, FCALL end->next [L1038] COND TRUE !(end->next) [L1038] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 278.38 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 76.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 932.4 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 569.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. * CodeCheck took 967.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 933.3 MB in the end (delta: 113.8 MB). Peak memory consumption was 113.8 MB. Max. memory is 11.5 GB. * Witness Printer took 42.12 ms. Allocated memory is still 1.1 GB. Free memory was 933.3 MB in the beginning and 930.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...