./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60dcf5da7f0124de96473d8010137f60c5cb2803 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:31:19,419 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:31:19,420 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:31:19,426 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:31:19,427 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:31:19,427 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:31:19,428 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:31:19,429 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:31:19,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:31:19,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:31:19,431 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:31:19,432 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:31:19,432 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:31:19,433 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:31:19,433 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:31:19,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:31:19,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:31:19,435 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:31:19,437 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:31:19,437 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:31:19,438 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:31:19,439 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:31:19,440 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:31:19,441 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:31:19,441 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:31:19,441 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:31:19,442 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:31:19,442 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:31:19,443 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:31:19,443 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:31:19,444 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:31:19,444 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:31:19,444 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:31:19,444 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:31:19,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:31:19,446 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:31:19,446 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 00:31:19,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:31:19,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:31:19,456 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:31:19,456 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 00:31:19,456 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:31:19,456 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:31:19,457 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:31:19,457 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:31:19,457 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:31:19,457 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:31:19,457 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:31:19,457 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:31:19,457 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:31:19,458 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:31:19,458 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:31:19,458 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:31:19,458 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:31:19,458 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:31:19,458 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 00:31:19,458 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 00:31:19,458 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:31:19,459 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:31:19,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 00:31:19,459 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:31:19,459 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:31:19,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:31:19,459 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 00:31:19,459 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:31:19,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:31:19,459 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_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60dcf5da7f0124de96473d8010137f60c5cb2803 [2018-11-23 00:31:19,481 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:31:19,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:31:19,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:31:19,491 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:31:19,492 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:31:19,492 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-23 00:31:19,528 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/data/36904409a/d3d85d674fc94946a083c9c05106af19/FLAG5d8a07e1b [2018-11-23 00:31:19,965 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:31:19,965 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/sv-benchmarks/c/forester-heap/sll-token_false-unreach-call_false-valid-memcleanup.i [2018-11-23 00:31:19,971 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/data/36904409a/d3d85d674fc94946a083c9c05106af19/FLAG5d8a07e1b [2018-11-23 00:31:19,979 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/data/36904409a/d3d85d674fc94946a083c9c05106af19 [2018-11-23 00:31:19,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:31:19,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:31:19,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:31:19,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:31:19,986 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:31:19,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:31:19" (1/1) ... [2018-11-23 00:31:19,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa062a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:19, skipping insertion in model container [2018-11-23 00:31:19,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:31:19" (1/1) ... [2018-11-23 00:31:19,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:31:20,027 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:31:20,208 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:31:20,215 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:31:20,293 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:31:20,315 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:31:20,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20 WrapperNode [2018-11-23 00:31:20,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:31:20,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:31:20,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:31:20,316 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:31:20,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:31:20,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:31:20,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:31:20,346 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:31:20,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:31:20,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:31:20,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:31:20,369 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:31:20,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:31:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/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 [2018-11-23 00:31:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:31:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 00:31:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 00:31:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 00:31:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 00:31:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:31:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:31:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:31:20,666 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:31:20,666 INFO L280 CfgBuilder]: Removed 19 assue(true) statements. [2018-11-23 00:31:20,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:20 BoogieIcfgContainer [2018-11-23 00:31:20,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:31:20,667 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 00:31:20,667 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 00:31:20,675 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 00:31:20,676 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:20" (1/1) ... [2018-11-23 00:31:20,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:31:20,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:31:20,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 64 transitions. [2018-11-23 00:31:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2018-11-23 00:31:20,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 00:31:20,718 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:31:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:31:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:31:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:31:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2018-11-23 00:31:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2018-11-23 00:31:20,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 00:31:20,802 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:31:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:31:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:31:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:31:20,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 39 states and 55 transitions. [2018-11-23 00:31:20,875 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2018-11-23 00:31:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-23 00:31:20,875 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:31:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:31:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:31:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:31:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2018-11-23 00:31:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2018-11-23 00:31:20,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 00:31:20,972 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:31:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:31:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:31:20,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:31:20,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2018-11-23 00:31:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-11-23 00:31:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 00:31:20,998 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:31:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:31:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 00:31:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:31:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2018-11-23 00:31:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2018-11-23 00:31:21,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 00:31:21,070 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:31:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:31:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:31:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:31:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:31:21,153 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~nondet1, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem5.base, main_#t~mem5.offset, main_#t~mem7, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem6, main_#t~mem9, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem12, main_#t~mem14, main_#t~mem15.base, main_#t~mem15.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8);main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4);call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4);main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0] [?] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~nondet1|=0] [?] assume !(0 != main_#t~nondet1);havoc main_#t~nondet1; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0] [?] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(8);call write~$Pointer$(main_#t~malloc4.base, main_#t~malloc4.offset, main_~x~0.base, main_~x~0.offset, 4);call main_#t~mem5.base, main_#t~mem5.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4);call write~int(2, main_#t~mem5.base, 4 + main_#t~mem5.offset, 4);havoc main_#t~mem5.base, main_#t~mem5.offset;main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] assume !!(0 != main_~x~0.base || 0 != main_~x~0.offset); VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] goto; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] call main_#t~mem6 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0, |ULTIMATE.start_main_#t~mem6|=1] [?] assume !(1 != main_#t~mem6);havoc main_#t~mem6; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] call main_#t~mem9 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0, |ULTIMATE.start_main_#t~mem9|=1] [?] assume !(2 == main_#t~mem9);havoc main_#t~mem9; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] assume !false; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [?] havoc main_#res; [?] havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~nondet1, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem5.base, main_#t~mem5.offset, main_#t~mem7, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem6, main_#t~mem9, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem12, main_#t~mem14, main_#t~mem15.base, main_#t~mem15.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L992] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L992] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L993] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L994] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L996] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet1=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999-L1006] assume !(0 != main_#t~nondet1); [L999] havoc main_#t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(8); [L1008] call write~$Pointer$(main_#t~malloc4.base, main_#t~malloc4.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] call main_#t~mem5.base, main_#t~mem5.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1009] call write~int(2, main_#t~mem5.base, 4 + main_#t~mem5.offset, 4); [L1009] havoc main_#t~mem5.base, main_#t~mem5.offset; [L1011] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1013] assume !!(0 != main_~x~0.base || 0 != main_~x~0.offset); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015] call main_#t~mem6 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem6=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015-L1019] assume !(1 != main_#t~mem6); [L1015] havoc main_#t~mem6; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] call main_#t~mem9 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem9=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assume !(2 == main_#t~mem9); [L1020] havoc main_#t~mem9; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [?] havoc main_#res; [?] havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~nondet1, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem5.base, main_#t~mem5.offset, main_#t~mem7, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem6, main_#t~mem9, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem12, main_#t~mem14, main_#t~mem15.base, main_#t~mem15.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L992] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L992] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L993] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L994] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L996] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet1=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999-L1006] assume !(0 != main_#t~nondet1); [L999] havoc main_#t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(8); [L1008] call write~$Pointer$(main_#t~malloc4.base, main_#t~malloc4.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] call main_#t~mem5.base, main_#t~mem5.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1009] call write~int(2, main_#t~mem5.base, 4 + main_#t~mem5.offset, 4); [L1009] havoc main_#t~mem5.base, main_#t~mem5.offset; [L1011] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1013] assume !!(0 != main_~x~0.base || 0 != main_~x~0.offset); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015] call main_#t~mem6 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem6=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015-L1019] assume !(1 != main_#t~mem6); [L1015] havoc main_#t~mem6; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] call main_#t~mem9 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem9=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assume !(2 == main_#t~mem9); [L1020] havoc main_#t~mem9; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [?] havoc main_#res; [?] havoc main_#t~malloc0, main_#t~malloc2, main_#t~mem3, main_#t~nondet1, main_#t~malloc4, main_#t~mem5, main_#t~mem7, main_#t~mem8, main_#t~mem6, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem13, main_#t~mem12, main_#t~mem14, main_#t~mem15, main_~head~0, main_~x~0; [L992] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L992] main_~head~0 := main_#t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L996] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet1=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999-L1006] COND TRUE !(0 != main_#t~nondet1) [L999] havoc main_#t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call main_#t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(main_#t~malloc4, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call main_#t~mem5 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: main_#t~mem5!base, offset: 4 + main_#t~mem5!offset }, 4); [L1009] havoc main_#t~mem5; [L1011] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != main_~x~0)) VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015] FCALL call main_#t~mem6 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem6=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015-L1019] COND TRUE !(1 != main_#t~mem6) [L1015] havoc main_#t~mem6; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] FCALL call main_#t~mem9 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem9=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] COND TRUE !(2 == main_#t~mem9) [L1020] havoc main_#t~mem9; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [?] havoc main_#res; [?] havoc main_#t~malloc0, main_#t~malloc2, main_#t~mem3, main_#t~nondet1, main_#t~malloc4, main_#t~mem5, main_#t~mem7, main_#t~mem8, main_#t~mem6, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem13, main_#t~mem12, main_#t~mem14, main_#t~mem15, main_~head~0, main_~x~0; [L992] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L992] main_~head~0 := main_#t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L996] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet1=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999-L1006] COND TRUE !(0 != main_#t~nondet1) [L999] havoc main_#t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call main_#t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(main_#t~malloc4, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call main_#t~mem5 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: main_#t~mem5!base, offset: 4 + main_#t~mem5!offset }, 4); [L1009] havoc main_#t~mem5; [L1011] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != main_~x~0)) VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015] FCALL call main_#t~mem6 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem6=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015-L1019] COND TRUE !(1 != main_#t~mem6) [L1015] havoc main_#t~mem6; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] FCALL call main_#t~mem9 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem9=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] COND TRUE !(2 == main_#t~mem9) [L1020] havoc main_#t~mem9; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L992] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L992] ~head~0 := #t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L996] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L999] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L999-L1006] COND TRUE !(0 != #t~nondet1) [L999] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call #t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(#t~malloc4, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call #t~mem5 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: #t~mem5!base, offset: 4 + #t~mem5!offset }, 4); [L1009] havoc #t~mem5; [L1011] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != ~x~0)) VAL [#NULL!base=0, #NULL!offset=0] [L1015] FCALL call #t~mem6 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1015-L1019] COND TRUE !(1 != #t~mem6) [L1015] havoc #t~mem6; VAL [#NULL!base=0, #NULL!offset=0] [L1020] FCALL call #t~mem9 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1020] COND TRUE !(2 == #t~mem9) [L1020] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L992] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L992] ~head~0 := #t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L996] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L999] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L999-L1006] COND TRUE !(0 != #t~nondet1) [L999] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call #t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(#t~malloc4, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call #t~mem5 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: #t~mem5!base, offset: 4 + #t~mem5!offset }, 4); [L1009] havoc #t~mem5; [L1011] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != ~x~0)) VAL [#NULL!base=0, #NULL!offset=0] [L1015] FCALL call #t~mem6 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1015-L1019] COND TRUE !(1 != #t~mem6) [L1015] havoc #t~mem6; VAL [#NULL!base=0, #NULL!offset=0] [L1020] FCALL call #t~mem9 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1020] COND TRUE !(2 == #t~mem9) [L1020] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0] [L992] SLL* head = malloc(sizeof(SLL)); [L993] head->next = ((void*)0) [L994] head->data = 0 [L996] SLL* x = head; [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] x->data = 1 [L1008] x->next = malloc(sizeof(SLL)) [L1009] EXPR x->next [L1009] x->next->data = 2 [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1015] EXPR x->data [L1015] COND FALSE !(1 != x->data) [L1020] EXPR x->data [L1020] COND TRUE !(2 == x->data) [L1020] __VERIFIER_error() ----- [2018-11-23 00:31:21,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:31:21 ImpRootNode [2018-11-23 00:31:21,198 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 00:31:21,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:31:21,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:31:21,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:31:21,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:31:20" (3/4) ... [2018-11-23 00:31:21,202 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~nondet1, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem5.base, main_#t~mem5.offset, main_#t~mem7, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem6, main_#t~mem9, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem12, main_#t~mem14, main_#t~mem15.base, main_#t~mem15.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8);main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4);call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4);main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0] [?] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~nondet1|=0] [?] assume !(0 != main_#t~nondet1);havoc main_#t~nondet1; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0] [?] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(8);call write~$Pointer$(main_#t~malloc4.base, main_#t~malloc4.offset, main_~x~0.base, main_~x~0.offset, 4);call main_#t~mem5.base, main_#t~mem5.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4);call write~int(2, main_#t~mem5.base, 4 + main_#t~mem5.offset, 4);havoc main_#t~mem5.base, main_#t~mem5.offset;main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] assume !!(0 != main_~x~0.base || 0 != main_~x~0.offset); VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] goto; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] call main_#t~mem6 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0, |ULTIMATE.start_main_#t~mem6|=1] [?] assume !(1 != main_#t~mem6);havoc main_#t~mem6; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] call main_#t~mem9 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0, |ULTIMATE.start_main_#t~mem9|=1] [?] assume !(2 == main_#t~mem9);havoc main_#t~mem9; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] assume !false; VAL [ULTIMATE.start_main_~head~0.base=3, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=3, ULTIMATE.start_main_~x~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |ULTIMATE.start_main_#t~malloc0.base|=3, |ULTIMATE.start_main_#t~malloc0.offset|=0, |ULTIMATE.start_main_#t~malloc4.base|=37, |ULTIMATE.start_main_#t~malloc4.offset|=0] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [?] havoc main_#res; [?] havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~nondet1, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem5.base, main_#t~mem5.offset, main_#t~mem7, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem6, main_#t~mem9, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem12, main_#t~mem14, main_#t~mem15.base, main_#t~mem15.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L992] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L992] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L993] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L994] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L996] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet1=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999-L1006] assume !(0 != main_#t~nondet1); [L999] havoc main_#t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(8); [L1008] call write~$Pointer$(main_#t~malloc4.base, main_#t~malloc4.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] call main_#t~mem5.base, main_#t~mem5.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1009] call write~int(2, main_#t~mem5.base, 4 + main_#t~mem5.offset, 4); [L1009] havoc main_#t~mem5.base, main_#t~mem5.offset; [L1011] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1013] assume !!(0 != main_~x~0.base || 0 != main_~x~0.offset); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015] call main_#t~mem6 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem6=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015-L1019] assume !(1 != main_#t~mem6); [L1015] havoc main_#t~mem6; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] call main_#t~mem9 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem9=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assume !(2 == main_#t~mem9); [L1020] havoc main_#t~mem9; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; [?] havoc main_#res; [?] havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~nondet1, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem5.base, main_#t~mem5.offset, main_#t~mem7, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem6, main_#t~mem9, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem12, main_#t~mem14, main_#t~mem15.base, main_#t~mem15.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L992] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L992] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L993] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L994] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L996] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet1=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L999-L1006] assume !(0 != main_#t~nondet1); [L999] havoc main_#t~nondet1; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(8); [L1008] call write~$Pointer$(main_#t~malloc4.base, main_#t~malloc4.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] call main_#t~mem5.base, main_#t~mem5.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1009] call write~int(2, main_#t~mem5.base, 4 + main_#t~mem5.offset, 4); [L1009] havoc main_#t~mem5.base, main_#t~mem5.offset; [L1011] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1013] assume !!(0 != main_~x~0.base || 0 != main_~x~0.offset); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015] call main_#t~mem6 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem6=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1015-L1019] assume !(1 != main_#t~mem6); [L1015] havoc main_#t~mem6; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] call main_#t~mem9 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_#t~mem9=1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assume !(2 == main_#t~mem9); [L1020] havoc main_#t~mem9; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1020] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc4.base=37, main_#t~malloc4.offset=0, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [?] havoc main_#res; [?] havoc main_#t~malloc0, main_#t~malloc2, main_#t~mem3, main_#t~nondet1, main_#t~malloc4, main_#t~mem5, main_#t~mem7, main_#t~mem8, main_#t~mem6, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem13, main_#t~mem12, main_#t~mem14, main_#t~mem15, main_~head~0, main_~x~0; [L992] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L992] main_~head~0 := main_#t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L996] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet1=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999-L1006] COND TRUE !(0 != main_#t~nondet1) [L999] havoc main_#t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call main_#t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(main_#t~malloc4, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call main_#t~mem5 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: main_#t~mem5!base, offset: 4 + main_#t~mem5!offset }, 4); [L1009] havoc main_#t~mem5; [L1011] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != main_~x~0)) VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015] FCALL call main_#t~mem6 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem6=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015-L1019] COND TRUE !(1 != main_#t~mem6) [L1015] havoc main_#t~mem6; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] FCALL call main_#t~mem9 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem9=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] COND TRUE !(2 == main_#t~mem9) [L1020] havoc main_#t~mem9; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [?] havoc main_#res; [?] havoc main_#t~malloc0, main_#t~malloc2, main_#t~mem3, main_#t~nondet1, main_#t~malloc4, main_#t~mem5, main_#t~mem7, main_#t~mem8, main_#t~mem6, main_#t~mem9, main_#t~mem10, main_#t~mem11, main_#t~mem13, main_#t~mem12, main_#t~mem14, main_#t~mem15, main_~head~0, main_~x~0; [L992] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L992] main_~head~0 := main_#t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L996] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999] assume -2147483648 <= main_#t~nondet1 && main_#t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet1=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L999-L1006] COND TRUE !(0 != main_#t~nondet1) [L999] havoc main_#t~nondet1; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call main_#t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(main_#t~malloc4, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call main_#t~mem5 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: main_#t~mem5!base, offset: 4 + main_#t~mem5!offset }, 4); [L1009] havoc main_#t~mem5; [L1011] main_~x~0 := main_~head~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != main_~x~0)) VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015] FCALL call main_#t~mem6 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem6=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1015-L1019] COND TRUE !(1 != main_#t~mem6) [L1015] havoc main_#t~mem6; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] FCALL call main_#t~mem9 := read~int({ base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_#t~mem9=1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] COND TRUE !(2 == main_#t~mem9) [L1020] havoc main_#t~mem9; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc4!base=37, main_#t~malloc4!offset=0, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L992] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L992] ~head~0 := #t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L996] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L999] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L999-L1006] COND TRUE !(0 != #t~nondet1) [L999] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call #t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(#t~malloc4, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call #t~mem5 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: #t~mem5!base, offset: 4 + #t~mem5!offset }, 4); [L1009] havoc #t~mem5; [L1011] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != ~x~0)) VAL [#NULL!base=0, #NULL!offset=0] [L1015] FCALL call #t~mem6 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1015-L1019] COND TRUE !(1 != #t~mem6) [L1015] havoc #t~mem6; VAL [#NULL!base=0, #NULL!offset=0] [L1020] FCALL call #t~mem9 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1020] COND TRUE !(2 == #t~mem9) [L1020] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L992] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L992] ~head~0 := #t~malloc0; [L993] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L994] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L996] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L999] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L999-L1006] COND TRUE !(0 != #t~nondet1) [L999] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call #t~malloc4 := #Ultimate.alloc(8); [L1008] FCALL call write~$Pointer$(#t~malloc4, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call #t~mem5 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] FCALL call write~int(2, { base: #t~mem5!base, offset: 4 + #t~mem5!offset }, 4); [L1009] havoc #t~mem5; [L1011] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1013] COND FALSE !(!({ base: 0, offset: 0 } != ~x~0)) VAL [#NULL!base=0, #NULL!offset=0] [L1015] FCALL call #t~mem6 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1015-L1019] COND TRUE !(1 != #t~mem6) [L1015] havoc #t~mem6; VAL [#NULL!base=0, #NULL!offset=0] [L1020] FCALL call #t~mem9 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1020] COND TRUE !(2 == #t~mem9) [L1020] havoc #t~mem9; VAL [#NULL!base=0, #NULL!offset=0] [L1020] assert false; VAL [#NULL!base=0, #NULL!offset=0] [L992] SLL* head = malloc(sizeof(SLL)); [L993] head->next = ((void*)0) [L994] head->data = 0 [L996] SLL* x = head; [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] x->data = 1 [L1008] x->next = malloc(sizeof(SLL)) [L1009] EXPR x->next [L1009] x->next->data = 2 [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1015] EXPR x->data [L1015] COND FALSE !(1 != x->data) [L1020] EXPR x->data [L1020] COND TRUE !(2 == x->data) [L1020] __VERIFIER_error() ----- [2018-11-23 00:31:21,245 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3625369d-fb97-4eb8-a77e-d7e8c2f04bde/bin-2019/ukojak/witness.graphml [2018-11-23 00:31:21,246 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:31:21,246 INFO L168 Benchmark]: Toolchain (without parser) took 1264.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.0 GB in the end (delta: -85.1 MB). Peak memory consumption was 63.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:31:21,248 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:31:21,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-23 00:31:21,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.29 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:31:21,249 INFO L168 Benchmark]: Boogie Preprocessor took 22.61 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:31:21,250 INFO L168 Benchmark]: RCFGBuilder took 297.96 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-11-23 00:31:21,250 INFO L168 Benchmark]: CodeCheck took 531.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:31:21,250 INFO L168 Benchmark]: Witness Printer took 47.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:31:21,253 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, 44 locations, 6 error locations. UNSAFE Result, 0.4s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 224 SDtfs, 44 SDslu, 52 SDs, 0 SdLazy, 160 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1020]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L992] SLL* head = malloc(sizeof(SLL)); [L993] head->next = ((void*)0) [L994] head->data = 0 [L996] SLL* x = head; [L999] COND FALSE !(__VERIFIER_nondet_int()) [L1007] x->data = 1 [L1008] x->next = malloc(sizeof(SLL)) [L1009] EXPR x->next [L1009] x->next->data = 2 [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1015] EXPR x->data [L1015] COND FALSE !(1 != x->data) [L1020] EXPR x->data [L1020] COND TRUE !(2 == x->data) [L1020] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.29 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.61 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 297.96 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * CodeCheck took 531.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. * Witness Printer took 47.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...