./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/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 27142e71f3089c5c3b5bf4f358882e993f701ffc ...................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-09 16:45:05,555 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:45:05,556 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:45:05,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:45:05,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:45:05,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:45:05,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:45:05,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:45:05,565 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:45:05,565 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:45:05,566 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:45:05,566 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:45:05,566 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:45:05,567 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:45:05,567 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:45:05,568 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:45:05,568 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:45:05,569 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:45:05,570 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:45:05,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:45:05,571 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:45:05,571 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:45:05,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:45:05,573 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:45:05,573 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:45:05,573 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:45:05,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:45:05,574 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:45:05,574 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:45:05,575 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:45:05,575 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:45:05,575 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:45:05,576 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:45:05,576 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:45:05,576 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:45:05,576 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:45:05,577 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 16:45:05,584 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:45:05,584 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:45:05,585 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:45:05,585 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 16:45:05,585 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 16:45:05,585 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 16:45:05,585 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:45:05,585 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:45:05,585 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 16:45:05,586 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:45:05,586 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 16:45:05,587 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 16:45:05,587 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:45:05,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:45:05,587 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_30a40a98-8a93-46ba-a772-63aa0dae861b/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 -> 27142e71f3089c5c3b5bf4f358882e993f701ffc [2018-12-09 16:45:05,605 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:45:05,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:45:05,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:45:05,614 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:45:05,614 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:45:05,615 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:45:05,656 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/data/ccc608f6d/8f7a4899a0f14ddcb2ec91b575dcd67a/FLAG65e1355a7 [2018-12-09 16:45:06,104 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:45:06,104 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert_false-unreach-call_false-valid-memcleanup.i [2018-12-09 16:45:06,111 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/data/ccc608f6d/8f7a4899a0f14ddcb2ec91b575dcd67a/FLAG65e1355a7 [2018-12-09 16:45:06,118 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/data/ccc608f6d/8f7a4899a0f14ddcb2ec91b575dcd67a [2018-12-09 16:45:06,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:45:06,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:45:06,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:45:06,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:45:06,123 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:45:06,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c140d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06, skipping insertion in model container [2018-12-09 16:45:06,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:45:06,148 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:45:06,298 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:45:06,303 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:45:06,366 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:45:06,388 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:45:06,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06 WrapperNode [2018-12-09 16:45:06,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:45:06,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:45:06,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:45:06,389 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:45:06,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:45:06,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:45:06,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:45:06,416 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:45:06,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:45:06,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:45:06,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:45:06,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:45:06,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/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 [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-12-09 16:45:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2018-12-09 16:45:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-09 16:45:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:45:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:45:06,716 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:45:06,716 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-12-09 16:45:06,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:45:06 BoogieIcfgContainer [2018-12-09 16:45:06,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:45:06,717 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 16:45:06,717 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 16:45:06,723 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 16:45:06,724 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:45:06" (1/1) ... [2018-12-09 16:45:06,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:45:06,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 36 states and 50 transitions. [2018-12-09 16:45:06,754 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2018-12-09 16:45:06,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 16:45:06,757 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:06,823 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 16:45:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2018-12-09 16:45:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2018-12-09 16:45:06,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 16:45:06,831 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 16:45:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 38 states and 49 transitions. [2018-12-09 16:45:06,988 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2018-12-09 16:45:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 16:45:06,989 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:45:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:07,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 41 states and 55 transitions. [2018-12-09 16:45:07,298 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2018-12-09 16:45:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 16:45:07,299 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:07,360 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 16:45:07,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:07,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 59 transitions. [2018-12-09 16:45:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2018-12-09 16:45:07,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 16:45:07,668 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:45:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 49 states and 66 transitions. [2018-12-09 16:45:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2018-12-09 16:45:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-09 16:45:08,502 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:08,974 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-09 16:45:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 74 states and 111 transitions. [2018-12-09 16:45:12,664 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2018-12-09 16:45:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 16:45:12,665 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:45:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:19,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 91 states and 137 transitions. [2018-12-09 16:45:19,572 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 137 transitions. [2018-12-09 16:45:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 16:45:19,573 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:45:19,599 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 16:45:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:45:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 93 states and 143 transitions. [2018-12-09 16:45:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 143 transitions. [2018-12-09 16:45:20,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-09 16:45:20,538 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:45:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:45:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:45:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:45:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 16:45:20,633 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2018-12-09 16:45:20,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 04:45:20 ImpRootNode [2018-12-09 16:45:20,659 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 16:45:20,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:45:20,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:45:20,660 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:45:20,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:45:06" (3/4) ... [2018-12-09 16:45:20,661 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 16:45:20,702 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_30a40a98-8a93-46ba-a772-63aa0dae861b/bin-2019/ukojak/witness.graphml [2018-12-09 16:45:20,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:45:20,703 INFO L168 Benchmark]: Toolchain (without parser) took 14582.90 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 418.4 MB). Free memory was 957.1 MB in the beginning and 889.9 MB in the end (delta: 67.2 MB). Peak memory consumption was 485.6 MB. Max. memory is 11.5 GB. [2018-12-09 16:45:20,704 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:45:20,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:45:20,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:45:20,705 INFO L168 Benchmark]: Boogie Preprocessor took 17.95 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-09 16:45:20,705 INFO L168 Benchmark]: RCFGBuilder took 282.45 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2018-12-09 16:45:20,706 INFO L168 Benchmark]: CodeCheck took 13942.28 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 282.1 MB). Free memory was 1.1 GB in the beginning and 889.9 MB in the end (delta: 186.8 MB). Peak memory consumption was 468.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:45:20,706 INFO L168 Benchmark]: Witness Printer took 43.39 ms. Allocated memory is still 1.4 GB. Free memory is still 889.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:45:20,708 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 3 procedures, 49 locations, 1 error locations. UNSAFE Result, 13.8s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4592 SDtfs, 1496 SDslu, 1168 SDs, 0 SdLazy, 10300 SolverSat, 3404 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1896 GetRequests, 1631 SyntacticMatches, 25 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20018 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 59506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 50/92 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: 630]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L616] CALL, EXPR _get_nondet_int(2, 5) VAL [\old(from)=2, \old(until)=5] [L609] int len = from; VAL [\old(from)=2, \old(until)=5, from=2, len=2, until=5] [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=2, \old(until)=5, __VERIFIER_nondet_int()=0, from=2, len=2, len < until && __VERIFIER_nondet_int()=0, until=5] [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] return len; [L616] RET, EXPR _get_nondet_int(2, 5) [L616] const int len = _get_nondet_int(2, 5); [L617] SLL s = sll_create(len); [L564] SLL head = ((void *)0); [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND TRUE len-- > 0 [L566] SLL new_head = (SLL) malloc(sizeof(struct node)); [L567] COND FALSE !(((void *)0) == new_head) [L570] new_head->next = head [L571] head = new_head [L565] EXPR len-- [L565] COND FALSE !(len-- > 0) [L573] return head; [L617] SLL s = sll_create(len); [L618] CALL, EXPR _get_nondet_int(0, len - 1) VAL [\old(from)=0, \old(until)=1] [L609] int len = from; VAL [\old(from)=0, \old(until)=1, from=0, len=0, until=1] [L610] len < until && __VERIFIER_nondet_int() [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, __VERIFIER_nondet_int()=-1, from=0, len=0, len < until && __VERIFIER_nondet_int()=1, until=1] [L610] COND TRUE len < until && __VERIFIER_nondet_int() [L611] len++ VAL [\old(from)=0, \old(until)=1, from=0, len=1, until=1] [L610] len < until && __VERIFIER_nondet_int() VAL [\old(from)=0, \old(until)=1, __VERIFIER_nondet_int()=0, from=0, len=1, len < until && __VERIFIER_nondet_int()=0, until=1] [L610] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L613] return len; [L618] RET, EXPR _get_nondet_int(0, len - 1) [L618] const int k = _get_nondet_int(0, len - 1); [L619] int i = 0; [L620] i < k && __VERIFIER_nondet_int() [L620] i < k && __VERIFIER_nondet_int() [L620] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L625] EXPR \read(s) [L576] int len = 0; [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR head->next [L579] head = head->next [L577] COND TRUE \read(head) [L578] len++ [L579] EXPR head->next [L579] head = head->next [L577] COND FALSE !(\read(head)) [L581] return len; [L625] COND TRUE k + len != sll_length(s) [L630] __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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.95 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 282.45 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * CodeCheck took 13942.28 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 282.1 MB). Free memory was 1.1 GB in the beginning and 889.9 MB in the end (delta: 186.8 MB). Peak memory consumption was 468.8 MB. Max. memory is 11.5 GB. * Witness Printer took 43.39 ms. Allocated memory is still 1.4 GB. Free memory is still 889.9 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...