./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/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 31de2fb67e84e52bb7705ac8720e6b139fef2d91 .................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 10:14:33,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:14:33,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:14:33,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:14:33,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:14:33,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:14:33,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:14:33,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:14:33,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:14:33,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:14:33,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:14:33,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:14:33,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:14:33,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:14:33,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:14:33,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:14:33,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:14:33,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:14:33,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:14:33,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:14:33,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:14:33,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:14:33,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:14:33,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:14:33,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:14:33,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:14:33,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:14:33,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:14:33,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:14:33,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:14:33,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:14:33,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:14:33,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:14:33,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:14:33,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:14:33,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:14:33,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:14:33,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:14:33,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:14:33,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:14:33,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:14:33,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:14:33,456 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:14:33,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:14:33,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:14:33,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:14:33,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:14:33,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:14:33,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:14:33,458 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:14:33,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:14:33,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:14:33,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:14:33,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:14:33,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:14:33,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:14:33,459 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:14:33,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:14:33,459 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:14:33,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:14:33,460 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:14:33,460 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:14:33,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:14:33,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:14:33,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:14:33,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:14:33,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:14:33,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:14:33,461 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:14:33,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:14:33,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:14:33,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/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 -> 31de2fb67e84e52bb7705ac8720e6b139fef2d91 [2019-10-22 10:14:33,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:14:33,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:14:33,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:14:33,509 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:14:33,509 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:14:33,510 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-01-2.i [2019-10-22 10:14:33,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/data/0a95872d7/094da84b61684ad8bc05bbfffd0ad733/FLAGce88527fe [2019-10-22 10:14:33,975 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:14:33,975 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/sv-benchmarks/c/forester-heap/sll-01-2.i [2019-10-22 10:14:33,986 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/data/0a95872d7/094da84b61684ad8bc05bbfffd0ad733/FLAGce88527fe [2019-10-22 10:14:34,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/data/0a95872d7/094da84b61684ad8bc05bbfffd0ad733 [2019-10-22 10:14:34,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:14:34,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:14:34,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:34,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:14:34,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:14:34,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1957f3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34, skipping insertion in model container [2019-10-22 10:14:34,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,365 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:14:34,409 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:14:34,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:34,798 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:14:34,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:14:34,898 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:14:34,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34 WrapperNode [2019-10-22 10:14:34,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:34,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:34,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:14:34,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:14:34,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:14:34,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:14:34,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:14:34,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:14:34,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... [2019-10-22 10:14:34,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:14:34,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:14:34,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:14:34,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:14:34,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/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 [2019-10-22 10:14:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 10:14:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 10:14:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 10:14:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:14:35,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:14:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:14:35,552 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:14:35,552 INFO L284 CfgBuilder]: Removed 34 assume(true) statements. [2019-10-22 10:14:35,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:35 BoogieIcfgContainer [2019-10-22 10:14:35,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:14:35,553 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:14:35,554 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:14:35,563 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:14:35,563 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:35" (1/1) ... [2019-10-22 10:14:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:14:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:35,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 74 states and 118 transitions. [2019-10-22 10:14:35,604 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2019-10-22 10:14:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:14:35,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 72 states and 113 transitions. [2019-10-22 10:14:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 113 transitions. [2019-10-22 10:14:35,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:14:35,746 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:35,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 70 states and 108 transitions. [2019-10-22 10:14:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2019-10-22 10:14:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:14:35,809 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:35,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:35,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2019-10-22 10:14:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-10-22 10:14:35,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:14:35,847 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:35,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 68 states and 98 transitions. [2019-10-22 10:14:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2019-10-22 10:14:35,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:14:35,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:36,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:36,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 72 states and 104 transitions. [2019-10-22 10:14:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2019-10-22 10:14:36,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 10:14:36,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 70 states and 99 transitions. [2019-10-22 10:14:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2019-10-22 10:14:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:14:36,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:36,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:36,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:36,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2019-10-22 10:14:36,215 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2019-10-22 10:14:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:14:36,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:36,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 70 states and 95 transitions. [2019-10-22 10:14:36,297 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2019-10-22 10:14:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 10:14:36,297 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:36,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:36,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:36,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 72 states and 95 transitions. [2019-10-22 10:14:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2019-10-22 10:14:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 10:14:36,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 70 states and 91 transitions. [2019-10-22 10:14:36,442 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2019-10-22 10:14:36,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-22 10:14:36,442 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:38,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:38,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 81 states and 106 transitions. [2019-10-22 10:14:38,136 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2019-10-22 10:14:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:14:38,137 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 10:14:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:38,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 79 states and 104 transitions. [2019-10-22 10:14:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2019-10-22 10:14:38,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:14:38,269 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 93 states and 122 transitions. [2019-10-22 10:14:40,936 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 122 transitions. [2019-10-22 10:14:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 10:14:40,939 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:14:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 86 states and 113 transitions. [2019-10-22 10:14:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 113 transitions. [2019-10-22 10:14:41,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 10:14:41,348 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:43,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 96 states and 131 transitions. [2019-10-22 10:14:43,909 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 131 transitions. [2019-10-22 10:14:43,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 10:14:43,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:44,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 97 states and 131 transitions. [2019-10-22 10:14:44,163 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 131 transitions. [2019-10-22 10:14:44,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 10:14:44,163 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:47,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 105 states and 143 transitions. [2019-10-22 10:14:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 143 transitions. [2019-10-22 10:14:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 10:14:47,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 116 states and 158 transitions. [2019-10-22 10:14:49,695 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 158 transitions. [2019-10-22 10:14:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 10:14:49,696 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:14:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:14:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:14:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 121 states and 169 transitions. [2019-10-22 10:14:51,817 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 169 transitions. [2019-10-22 10:14:51,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 10:14:51,818 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:14:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:14:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:14:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:14:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:14:51,951 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 20 iterations. [2019-10-22 10:14:52,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:14:52 ImpRootNode [2019-10-22 10:14:52,013 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:14:52,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:14:52,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:14:52,014 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:14:52,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:14:35" (3/4) ... [2019-10-22 10:14:52,016 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:14:52,075 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8cb23e51-8e5e-4377-95b2-76a7026b4212/bin/ukojak/witness.graphml [2019-10-22 10:14:52,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:14:52,077 INFO L168 Benchmark]: Toolchain (without parser) took 17728.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.8 MB). Free memory was 939.1 MB in the beginning and 982.7 MB in the end (delta: -43.7 MB). Peak memory consumption was 265.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:52,077 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:14:52,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 550.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:52,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:52,079 INFO L168 Benchmark]: Boogie Preprocessor took 28.64 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. [2019-10-22 10:14:52,079 INFO L168 Benchmark]: RCFGBuilder took 574.96 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:52,080 INFO L168 Benchmark]: CodeCheck took 16459.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.1 GB in the beginning and 994.8 MB in the end (delta: 68.2 MB). Peak memory consumption was 236.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:52,080 INFO L168 Benchmark]: Witness Printer took 61.48 ms. Allocated memory is still 1.3 GB. Free memory was 994.8 MB in the beginning and 982.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:52,083 INFO L335 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, 74 locations, 13 error locations. Result: UNSAFE, OverallTime: 16.3s, OverallIterations: 20, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3021296 SDtfs, 630588 SDslu, 398000 SDs, 0 SdLazy, 3207358 SolverSat, 1670418 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2589 GetRequests, 2347 SyntacticMatches, 34 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15274 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 67701 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 14 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1025]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L991] SLL* list = malloc(sizeof(SLL)); [L992] list->next = ((void*)0) [L993] COND FALSE !(!(list != ((void*)0))) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L993] list->inner = malloc(sizeof(SLL)) [L993] EXPR list->inner [L993] list->inner->next = ((void*)0) [L993] EXPR list->inner [L993] list->inner->inner = ((void*)0) [L993] EXPR list->inner [L993] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L993] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L995] SLL* end = list; [L998] COND FALSE !(__VERIFIER_nondet_int()) [L1008] end = ((void*)0) [L1009] end = list [L1012] COND FALSE !(!(((void*)0) != end)) [L1014] COND TRUE ((void*)0) != end [L1016] int len = 0; [L1017] EXPR end->inner [L1017] SLL* inner = end->inner; [L1018] COND TRUE ((void*)0) != inner [L1020] COND TRUE len == 0 [L1021] len = 1 [L1024] COND FALSE !(!(((void*)0) != inner)) [L1025] EXPR inner->inner [L1025] COND FALSE !(!(((void*)0) == inner->inner)) [L1026] EXPR inner->next [L1026] COND FALSE !(!(((void*)0) == inner->next)) [L1027] EXPR inner->inner [L1027] inner = inner->inner [L1028] COND TRUE len == 1 [L1029] EXPR inner->inner [L1029] inner = inner->inner [L1018] COND TRUE ((void*)0) != inner [L1020] COND FALSE !(len == 0) [L1023] len = 2 [L1024] COND FALSE !(!(((void*)0) != inner)) [L1025] EXPR inner->inner [L1025] COND TRUE !(((void*)0) == inner->inner) [L1025] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 550.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.64 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 574.96 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * CodeCheck took 16459.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.1 GB in the beginning and 994.8 MB in the end (delta: 68.2 MB). Peak memory consumption was 236.5 MB. Max. memory is 11.5 GB. * Witness Printer took 61.48 ms. Allocated memory is still 1.3 GB. Free memory was 994.8 MB in the beginning and 982.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...