./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue_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_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/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 adee0aad8018029b1a093d0ddfc0de44abfd0e03 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:10:46,433 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:10:46,434 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:10:46,440 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:10:46,440 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:10:46,441 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:10:46,442 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:10:46,443 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:10:46,444 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:10:46,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:10:46,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:10:46,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:10:46,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:10:46,446 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:10:46,447 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:10:46,447 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:10:46,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:10:46,448 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:10:46,449 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:10:46,450 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:10:46,451 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:10:46,452 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:10:46,453 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:10:46,454 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:10:46,454 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:10:46,454 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:10:46,455 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:10:46,455 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:10:46,456 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:10:46,456 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:10:46,456 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:10:46,457 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:10:46,457 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:10:46,457 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:10:46,457 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:10:46,458 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:10:46,458 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 00:10:46,465 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:10:46,465 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:10:46,465 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:10:46,466 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 00:10:46,466 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 00:10:46,466 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 00:10:46,466 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:10:46,466 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:10:46,466 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:10:46,467 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:10:46,468 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 00:10:46,468 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 00:10:46,468 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:10:46,468 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:10:46,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 00:10:46,468 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:10:46,468 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:10:46,469 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:10:46,469 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 00:10:46,469 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:10:46,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:10:46,469 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_527ad103-15b5-48d3-9d13-fb2a963de4f0/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 -> adee0aad8018029b1a093d0ddfc0de44abfd0e03 [2018-11-23 00:10:46,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:10:46,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:10:46,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:10:46,505 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:10:46,505 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:10:46,506 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-simple-white-blue_false-unreach-call_false-valid-memcleanup.i [2018-11-23 00:10:46,547 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/data/b7475c7d6/55bc8fa5a6be4e38acababce5d28fc82/FLAGc691d8fe8 [2018-11-23 00:10:46,999 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:10:46,999 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/sv-benchmarks/c/forester-heap/sll-simple-white-blue_false-unreach-call_false-valid-memcleanup.i [2018-11-23 00:10:47,008 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/data/b7475c7d6/55bc8fa5a6be4e38acababce5d28fc82/FLAGc691d8fe8 [2018-11-23 00:10:47,019 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/data/b7475c7d6/55bc8fa5a6be4e38acababce5d28fc82 [2018-11-23 00:10:47,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:10:47,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:10:47,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:10:47,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:10:47,026 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:10:47,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e1fb88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47, skipping insertion in model container [2018-11-23 00:10:47,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:10:47,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:10:47,269 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:10:47,276 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:10:47,356 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:10:47,388 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:10:47,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47 WrapperNode [2018-11-23 00:10:47,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:10:47,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:10:47,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:10:47,389 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:10:47,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:10:47,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:10:47,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:10:47,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:10:47,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:10:47,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:10:47,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:10:47,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:10:47,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:10:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/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 00:10:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:10:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 00:10:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 00:10:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 00:10:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 00:10:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:10:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:10:47,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:10:47,736 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:10:47,737 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-23 00:10:47,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:10:47 BoogieIcfgContainer [2018-11-23 00:10:47,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:10:47,737 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 00:10:47,738 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 00:10:47,745 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 00:10:47,746 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:10:47" (1/1) ... [2018-11-23 00:10:47,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:10:47,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:10:47,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2018-11-23 00:10:47,775 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2018-11-23 00:10:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 00:10:47,777 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:10:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:10:47,855 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 00:10:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 00:10:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2018-11-23 00:10:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2018-11-23 00:10:47,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 00:10:47,863 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 00:10:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:10:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:10:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:10:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:10:47,984 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 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~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem9.base, main_#t~mem9.offset, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_~y~0.base, main_~y~0.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.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] [?] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 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~nondet4|=(- 1)] [?] assume 0 != main_#t~nondet4;havoc main_#t~nondet4;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(8);main_~x~0.base, main_~x~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4);call write~$Pointer$(main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset, 4);main_~head~0.base, main_~head~0.offset := main_~x~0.base, main_~x~0.offset; VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] call main_#t~mem13 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0, |ULTIMATE.start_main_#t~mem13|=1] [?] assume !(1 != main_#t~mem13);havoc main_#t~mem13; VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4);main_~x~0.base, main_~x~0.offset := main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem15.base, main_#t~mem15.offset; VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] assume !!(main_~x~0.base != 0 || main_~x~0.offset != 0);call main_#t~mem16 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0, |ULTIMATE.start_main_#t~mem16|=0] [?] assume 1 != main_#t~mem16;havoc main_#t~mem16; VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] assume !false; VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.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~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem9.base, main_#t~mem9.offset, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_~y~0.base, main_~y~0.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L988] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L988] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L989] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L990] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L992] 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] [L995] 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] [L995-L1002] assume !(0 != main_#t~nondet1); [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet4=-1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1005-L1026] assume 0 != main_#t~nondet4; [L1005] havoc main_#t~nondet4; [L1006] call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(8); [L1006] main_~x~0.base, main_~x~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call write~$Pointer$(main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] main_~head~0.base, main_~head~0.offset := main_~x~0.base, main_~x~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1029] 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~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032] call main_#t~mem13 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem13=1, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032-L1035] assume !(1 != main_#t~mem13); [L1032] havoc main_#t~mem13; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1038] call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1038] main_~x~0.base, main_~x~0.offset := main_#t~mem15.base, main_#t~mem15.offset; [L1038] havoc main_#t~mem15.base, main_#t~mem15.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1039-L1044] assume !!(main_~x~0.base != 0 || main_~x~0.offset != 0); [L1041] call main_#t~mem16 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem16=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1041-L1042] assume 1 != main_#t~mem16; [L1041] havoc main_#t~mem16; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1042] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, 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~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem9.base, main_#t~mem9.offset, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_~y~0.base, main_~y~0.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L988] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L988] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L989] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L990] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L992] 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] [L995] 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] [L995-L1002] assume !(0 != main_#t~nondet1); [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet4=-1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1005-L1026] assume 0 != main_#t~nondet4; [L1005] havoc main_#t~nondet4; [L1006] call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(8); [L1006] main_~x~0.base, main_~x~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call write~$Pointer$(main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] main_~head~0.base, main_~head~0.offset := main_~x~0.base, main_~x~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1029] 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~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032] call main_#t~mem13 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem13=1, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032-L1035] assume !(1 != main_#t~mem13); [L1032] havoc main_#t~mem13; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1038] call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1038] main_~x~0.base, main_~x~0.offset := main_#t~mem15.base, main_#t~mem15.offset; [L1038] havoc main_#t~mem15.base, main_#t~mem15.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1039-L1044] assume !!(main_~x~0.base != 0 || main_~x~0.offset != 0); [L1041] call main_#t~mem16 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem16=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1041-L1042] assume 1 != main_#t~mem16; [L1041] havoc main_#t~mem16; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1042] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, 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~nondet4, main_#t~malloc5, main_#t~nondet6, main_#t~mem7, main_#t~mem8, main_#t~mem9, main_#t~malloc10, main_#t~mem11, main_#t~mem12, main_~y~0, main_#t~mem14, main_#t~mem13, main_#t~mem15, main_#t~mem16, main_#t~mem17, main_#t~mem18, main_~head~0, main_~x~0; [L988] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L988] main_~head~0 := main_#t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L992] 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] [L995] 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] [L995-L1002] COND TRUE !(0 != main_#t~nondet1) [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet4=-1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1005-L1026] COND TRUE 0 != main_#t~nondet4 [L1005] havoc main_#t~nondet4; [L1006] FCALL call main_#t~malloc5 := #Ultimate.alloc(8); [L1006] main_~x~0 := main_#t~malloc5; [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(main_~head~0, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] main_~head~0 := main_~x~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1029] 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~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032] FCALL call main_#t~mem13 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem13=1, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032-L1035] COND TRUE !(1 != main_#t~mem13) [L1032] havoc main_#t~mem13; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1038] FCALL call main_#t~mem15 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1038] main_~x~0 := main_#t~mem15; [L1038] havoc main_#t~mem15; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1039-L1044] COND FALSE !(!(main_~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call main_#t~mem16 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem16=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1041] COND TRUE 1 != main_#t~mem16 [L1041] havoc main_#t~mem16; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1042] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, 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~nondet4, main_#t~malloc5, main_#t~nondet6, main_#t~mem7, main_#t~mem8, main_#t~mem9, main_#t~malloc10, main_#t~mem11, main_#t~mem12, main_~y~0, main_#t~mem14, main_#t~mem13, main_#t~mem15, main_#t~mem16, main_#t~mem17, main_#t~mem18, main_~head~0, main_~x~0; [L988] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L988] main_~head~0 := main_#t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L992] 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] [L995] 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] [L995-L1002] COND TRUE !(0 != main_#t~nondet1) [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet4=-1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1005-L1026] COND TRUE 0 != main_#t~nondet4 [L1005] havoc main_#t~nondet4; [L1006] FCALL call main_#t~malloc5 := #Ultimate.alloc(8); [L1006] main_~x~0 := main_#t~malloc5; [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(main_~head~0, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] main_~head~0 := main_~x~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1029] 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~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032] FCALL call main_#t~mem13 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem13=1, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032-L1035] COND TRUE !(1 != main_#t~mem13) [L1032] havoc main_#t~mem13; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1038] FCALL call main_#t~mem15 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1038] main_~x~0 := main_#t~mem15; [L1038] havoc main_#t~mem15; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1039-L1044] COND FALSE !(!(main_~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call main_#t~mem16 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem16=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1041] COND TRUE 1 != main_#t~mem16 [L1041] havoc main_#t~mem16; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1042] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L988] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L988] ~head~0 := #t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L992] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L995] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L995-L1002] COND TRUE !(0 != #t~nondet1) [L995] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1005] assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L1005-L1026] COND TRUE 0 != #t~nondet4 [L1005] havoc #t~nondet4; [L1006] FCALL call #t~malloc5 := #Ultimate.alloc(8); [L1006] ~x~0 := #t~malloc5; [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(~head~0, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] ~head~0 := ~x~0; VAL [#NULL!base=0, #NULL!offset=0] [L1029] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1032] FCALL call #t~mem13 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1032-L1035] COND TRUE !(1 != #t~mem13) [L1032] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0] [L1038] FCALL call #t~mem15 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1038] ~x~0 := #t~mem15; [L1038] havoc #t~mem15; VAL [#NULL!base=0, #NULL!offset=0] [L1039-L1044] COND FALSE !(!(~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call #t~mem16 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1041] COND TRUE 1 != #t~mem16 [L1041] havoc #t~mem16; VAL [#NULL!base=0, #NULL!offset=0] [L1042] 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; [L988] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L988] ~head~0 := #t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L992] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L995] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L995-L1002] COND TRUE !(0 != #t~nondet1) [L995] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1005] assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L1005-L1026] COND TRUE 0 != #t~nondet4 [L1005] havoc #t~nondet4; [L1006] FCALL call #t~malloc5 := #Ultimate.alloc(8); [L1006] ~x~0 := #t~malloc5; [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(~head~0, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] ~head~0 := ~x~0; VAL [#NULL!base=0, #NULL!offset=0] [L1029] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1032] FCALL call #t~mem13 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1032-L1035] COND TRUE !(1 != #t~mem13) [L1032] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0] [L1038] FCALL call #t~mem15 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1038] ~x~0 := #t~mem15; [L1038] havoc #t~mem15; VAL [#NULL!base=0, #NULL!offset=0] [L1039-L1044] COND FALSE !(!(~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call #t~mem16 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1041] COND TRUE 1 != #t~mem16 [L1041] havoc #t~mem16; VAL [#NULL!base=0, #NULL!offset=0] [L1042] assert false; VAL [#NULL!base=0, #NULL!offset=0] [L988] SLL* head = malloc(sizeof(SLL)); [L989] head->next = ((void*)0) [L990] head->data = 0 [L992] SLL* x = head; [L995] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND TRUE __VERIFIER_nondet_int() [L1006] x = malloc(sizeof(SLL)) [L1007] x->data = 1 [L1008] x->next = head [L1009] head = x [L1029] x = head [L1032] EXPR x->data [L1032] COND FALSE !(x->data != 1) [L1038] EXPR x->next [L1038] x = x->next [L1039] COND TRUE \read(*x) [L1041] EXPR x->data [L1041] COND TRUE x->data != 1 [L1042] __VERIFIER_error() ----- [2018-11-23 00:10:48,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:10:48 ImpRootNode [2018-11-23 00:10:48,017 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 00:10:48,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:10:48,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:10:48,018 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:10:48,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:10:47" (3/4) ... [2018-11-23 00:10:48,020 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~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem9.base, main_#t~mem9.offset, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_~y~0.base, main_~y~0.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.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] [?] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 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~nondet4|=(- 1)] [?] assume 0 != main_#t~nondet4;havoc main_#t~nondet4;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(8);main_~x~0.base, main_~x~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4);call write~$Pointer$(main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset, 4);main_~head~0.base, main_~head~0.offset := main_~x~0.base, main_~x~0.offset; VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] main_~x~0.base, main_~x~0.offset := main_~head~0.base, main_~head~0.offset; VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] call main_#t~mem13 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0, |ULTIMATE.start_main_#t~mem13|=1] [?] assume !(1 != main_#t~mem13);havoc main_#t~mem13; VAL [ULTIMATE.start_main_~head~0.base=17, ULTIMATE.start_main_~head~0.offset=0, ULTIMATE.start_main_~x~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4);main_~x~0.base, main_~x~0.offset := main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem15.base, main_#t~mem15.offset; VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] assume !!(main_~x~0.base != 0 || main_~x~0.offset != 0);call main_#t~mem16 := read~int(main_~x~0.base, 4 + main_~x~0.offset, 4); VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0, |ULTIMATE.start_main_#t~mem16|=0] [?] assume 1 != main_#t~mem16;havoc main_#t~mem16; VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.offset|=0] [?] assume !false; VAL [ULTIMATE.start_main_~head~0.base=17, 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~malloc5.base|=17, |ULTIMATE.start_main_#t~malloc5.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~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem9.base, main_#t~mem9.offset, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_~y~0.base, main_~y~0.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L988] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L988] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L989] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L990] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L992] 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] [L995] 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] [L995-L1002] assume !(0 != main_#t~nondet1); [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet4=-1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1005-L1026] assume 0 != main_#t~nondet4; [L1005] havoc main_#t~nondet4; [L1006] call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(8); [L1006] main_~x~0.base, main_~x~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call write~$Pointer$(main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] main_~head~0.base, main_~head~0.offset := main_~x~0.base, main_~x~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1029] 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~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032] call main_#t~mem13 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem13=1, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032-L1035] assume !(1 != main_#t~mem13); [L1032] havoc main_#t~mem13; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1038] call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1038] main_~x~0.base, main_~x~0.offset := main_#t~mem15.base, main_#t~mem15.offset; [L1038] havoc main_#t~mem15.base, main_#t~mem15.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1039-L1044] assume !!(main_~x~0.base != 0 || main_~x~0.offset != 0); [L1041] call main_#t~mem16 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem16=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1041-L1042] assume 1 != main_#t~mem16; [L1041] havoc main_#t~mem16; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1042] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, 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~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet6, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem8.base, main_#t~mem8.offset, main_#t~mem9.base, main_#t~mem9.offset, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_~y~0.base, main_~y~0.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset; [L988] call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(8); [L988] main_~head~0.base, main_~head~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset; [L989] call write~$Pointer$(0, 0, main_~head~0.base, main_~head~0.offset, 4); [L990] call write~int(0, main_~head~0.base, 4 + main_~head~0.offset, 4); [L992] 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] [L995] 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] [L995-L1002] assume !(0 != main_#t~nondet1); [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~nondet4=-1, main_~head~0.base=3, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1005-L1026] assume 0 != main_#t~nondet4; [L1005] havoc main_#t~nondet4; [L1006] call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(8); [L1006] main_~x~0.base, main_~x~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; [L1007] call write~int(1, main_~x~0.base, 4 + main_~x~0.offset, 4); [L1008] call write~$Pointer$(main_~head~0.base, main_~head~0.offset, main_~x~0.base, main_~x~0.offset, 4); [L1009] main_~head~0.base, main_~head~0.offset := main_~x~0.base, main_~x~0.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1029] 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~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032] call main_#t~mem13 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem13=1, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1032-L1035] assume !(1 != main_#t~mem13); [L1032] havoc main_#t~mem13; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=17, main_~x~0.offset=0] [L1038] call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~x~0.base, main_~x~0.offset, 4); [L1038] main_~x~0.base, main_~x~0.offset := main_#t~mem15.base, main_#t~mem15.offset; [L1038] havoc main_#t~mem15.base, main_#t~mem15.offset; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1039-L1044] assume !!(main_~x~0.base != 0 || main_~x~0.offset != 0); [L1041] call main_#t~mem16 := 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~malloc5.base=17, main_#t~malloc5.offset=0, main_#t~mem16=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1041-L1042] assume 1 != main_#t~mem16; [L1041] havoc main_#t~mem16; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, main_~head~0.offset=0, main_~x~0.base=3, main_~x~0.offset=0] [L1042] assert false; VAL [#NULL.base=0, #NULL.offset=0, main_#t~malloc0.base=3, main_#t~malloc0.offset=0, main_#t~malloc5.base=17, main_#t~malloc5.offset=0, main_~head~0.base=17, 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~nondet4, main_#t~malloc5, main_#t~nondet6, main_#t~mem7, main_#t~mem8, main_#t~mem9, main_#t~malloc10, main_#t~mem11, main_#t~mem12, main_~y~0, main_#t~mem14, main_#t~mem13, main_#t~mem15, main_#t~mem16, main_#t~mem17, main_#t~mem18, main_~head~0, main_~x~0; [L988] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L988] main_~head~0 := main_#t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L992] 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] [L995] 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] [L995-L1002] COND TRUE !(0 != main_#t~nondet1) [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet4=-1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1005-L1026] COND TRUE 0 != main_#t~nondet4 [L1005] havoc main_#t~nondet4; [L1006] FCALL call main_#t~malloc5 := #Ultimate.alloc(8); [L1006] main_~x~0 := main_#t~malloc5; [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(main_~head~0, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] main_~head~0 := main_~x~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1029] 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~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032] FCALL call main_#t~mem13 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem13=1, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032-L1035] COND TRUE !(1 != main_#t~mem13) [L1032] havoc main_#t~mem13; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1038] FCALL call main_#t~mem15 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1038] main_~x~0 := main_#t~mem15; [L1038] havoc main_#t~mem15; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1039-L1044] COND FALSE !(!(main_~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call main_#t~mem16 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem16=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1041] COND TRUE 1 != main_#t~mem16 [L1041] havoc main_#t~mem16; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1042] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, 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~nondet4, main_#t~malloc5, main_#t~nondet6, main_#t~mem7, main_#t~mem8, main_#t~mem9, main_#t~malloc10, main_#t~mem11, main_#t~mem12, main_~y~0, main_#t~mem14, main_#t~mem13, main_#t~mem15, main_#t~mem16, main_#t~mem17, main_#t~mem18, main_~head~0, main_~x~0; [L988] FCALL call main_#t~malloc0 := #Ultimate.alloc(8); [L988] main_~head~0 := main_#t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: main_~head~0!base, offset: main_~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: main_~head~0!base, offset: 4 + main_~head~0!offset }, 4); [L992] 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] [L995] 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] [L995-L1002] COND TRUE !(0 != main_#t~nondet1) [L995] 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] [L1005] assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~nondet4=-1, main_~head~0!base=3, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1005-L1026] COND TRUE 0 != main_#t~nondet4 [L1005] havoc main_#t~nondet4; [L1006] FCALL call main_#t~malloc5 := #Ultimate.alloc(8); [L1006] main_~x~0 := main_#t~malloc5; [L1007] FCALL call write~int(1, { base: main_~x~0!base, offset: 4 + main_~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(main_~head~0, { base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1009] main_~head~0 := main_~x~0; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1029] 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~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032] FCALL call main_#t~mem13 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem13=1, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1032-L1035] COND TRUE !(1 != main_#t~mem13) [L1032] havoc main_#t~mem13; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=17, main_~x~0!offset=0] [L1038] FCALL call main_#t~mem15 := read~$Pointer$({ base: main_~x~0!base, offset: main_~x~0!offset }, 4); [L1038] main_~x~0 := main_#t~mem15; [L1038] havoc main_#t~mem15; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1039-L1044] COND FALSE !(!(main_~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call main_#t~mem16 := 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~malloc5!base=17, main_#t~malloc5!offset=0, main_#t~mem16=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1041] COND TRUE 1 != main_#t~mem16 [L1041] havoc main_#t~mem16; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [L1042] assert false; VAL [#NULL!base=0, #NULL!offset=0, main_#t~malloc0!base=3, main_#t~malloc0!offset=0, main_#t~malloc5!base=17, main_#t~malloc5!offset=0, main_~head~0!base=17, main_~head~0!offset=0, main_~x~0!base=3, main_~x~0!offset=0] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; [L988] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L988] ~head~0 := #t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L992] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L995] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L995-L1002] COND TRUE !(0 != #t~nondet1) [L995] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1005] assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L1005-L1026] COND TRUE 0 != #t~nondet4 [L1005] havoc #t~nondet4; [L1006] FCALL call #t~malloc5 := #Ultimate.alloc(8); [L1006] ~x~0 := #t~malloc5; [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(~head~0, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] ~head~0 := ~x~0; VAL [#NULL!base=0, #NULL!offset=0] [L1029] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1032] FCALL call #t~mem13 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1032-L1035] COND TRUE !(1 != #t~mem13) [L1032] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0] [L1038] FCALL call #t~mem15 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1038] ~x~0 := #t~mem15; [L1038] havoc #t~mem15; VAL [#NULL!base=0, #NULL!offset=0] [L1039-L1044] COND FALSE !(!(~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call #t~mem16 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1041] COND TRUE 1 != #t~mem16 [L1041] havoc #t~mem16; VAL [#NULL!base=0, #NULL!offset=0] [L1042] 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; [L988] FCALL call #t~malloc0 := #Ultimate.alloc(8); [L988] ~head~0 := #t~malloc0; [L989] FCALL call write~$Pointer$({ base: 0, offset: 0 }, { base: ~head~0!base, offset: ~head~0!offset }, 4); [L990] FCALL call write~int(0, { base: ~head~0!base, offset: 4 + ~head~0!offset }, 4); [L992] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L995] assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L995-L1002] COND TRUE !(0 != #t~nondet1) [L995] havoc #t~nondet1; VAL [#NULL!base=0, #NULL!offset=0] [L1005] assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0] [L1005-L1026] COND TRUE 0 != #t~nondet4 [L1005] havoc #t~nondet4; [L1006] FCALL call #t~malloc5 := #Ultimate.alloc(8); [L1006] ~x~0 := #t~malloc5; [L1007] FCALL call write~int(1, { base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); [L1008] FCALL call write~$Pointer$(~head~0, { base: ~x~0!base, offset: ~x~0!offset }, 4); [L1009] ~head~0 := ~x~0; VAL [#NULL!base=0, #NULL!offset=0] [L1029] ~x~0 := ~head~0; VAL [#NULL!base=0, #NULL!offset=0] [L1032] FCALL call #t~mem13 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1032-L1035] COND TRUE !(1 != #t~mem13) [L1032] havoc #t~mem13; VAL [#NULL!base=0, #NULL!offset=0] [L1038] FCALL call #t~mem15 := read~$Pointer$({ base: ~x~0!base, offset: ~x~0!offset }, 4); [L1038] ~x~0 := #t~mem15; [L1038] havoc #t~mem15; VAL [#NULL!base=0, #NULL!offset=0] [L1039-L1044] COND FALSE !(!(~x~0 != { base: 0, offset: 0 })) [L1041] FCALL call #t~mem16 := read~int({ base: ~x~0!base, offset: 4 + ~x~0!offset }, 4); VAL [#NULL!base=0, #NULL!offset=0] [L1041] COND TRUE 1 != #t~mem16 [L1041] havoc #t~mem16; VAL [#NULL!base=0, #NULL!offset=0] [L1042] assert false; VAL [#NULL!base=0, #NULL!offset=0] [L988] SLL* head = malloc(sizeof(SLL)); [L989] head->next = ((void*)0) [L990] head->data = 0 [L992] SLL* x = head; [L995] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND TRUE __VERIFIER_nondet_int() [L1006] x = malloc(sizeof(SLL)) [L1007] x->data = 1 [L1008] x->next = head [L1009] head = x [L1029] x = head [L1032] EXPR x->data [L1032] COND FALSE !(x->data != 1) [L1038] EXPR x->next [L1038] x = x->next [L1039] COND TRUE \read(*x) [L1041] EXPR x->data [L1041] COND TRUE x->data != 1 [L1042] __VERIFIER_error() ----- [2018-11-23 00:10:48,063 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_527ad103-15b5-48d3-9d13-fb2a963de4f0/bin-2019/ukojak/witness.graphml [2018-11-23 00:10:48,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:10:48,064 INFO L168 Benchmark]: Toolchain (without parser) took 1041.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -107.8 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:10:48,065 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:10:48,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-23 00:10:48,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.91 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:10:48,066 INFO L168 Benchmark]: Boogie Preprocessor took 22.45 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:10:48,067 INFO L168 Benchmark]: RCFGBuilder took 297.73 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-11-23 00:10:48,067 INFO L168 Benchmark]: CodeCheck took 279.56 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-23 00:10:48,068 INFO L168 Benchmark]: Witness Printer took 45.68 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:10:48,071 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, 26 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1042]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L988] SLL* head = malloc(sizeof(SLL)); [L989] head->next = ((void*)0) [L990] head->data = 0 [L992] SLL* x = head; [L995] COND FALSE !(__VERIFIER_nondet_int()) [L1005] COND TRUE __VERIFIER_nondet_int() [L1006] x = malloc(sizeof(SLL)) [L1007] x->data = 1 [L1008] x->next = head [L1009] head = x [L1029] x = head [L1032] EXPR x->data [L1032] COND FALSE !(x->data != 1) [L1038] EXPR x->next [L1038] x = x->next [L1039] COND TRUE \read(*x) [L1041] EXPR x->data [L1041] COND TRUE x->data != 1 [L1042] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 365.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.91 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.45 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 297.73 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * CodeCheck took 279.56 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.68 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...