./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/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 534681b11e8e68e6058985d885b01f2cbfa43e5b .......................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 15:19:28,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:19:28,365 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:19:28,373 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:19:28,374 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:19:28,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:19:28,375 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:19:28,376 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:19:28,377 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:19:28,378 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:19:28,379 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:19:28,379 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:19:28,380 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:19:28,380 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:19:28,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:19:28,382 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:19:28,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:19:28,384 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:19:28,388 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:19:28,389 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:19:28,389 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:19:28,390 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:19:28,392 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:19:28,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:19:28,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:19:28,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:19:28,394 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:19:28,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:19:28,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:19:28,396 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:19:28,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:19:28,397 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:19:28,397 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:19:28,397 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:19:28,398 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:19:28,399 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:19:28,399 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 15:19:28,415 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:19:28,415 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:19:28,415 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:19:28,416 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:19:28,416 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:19:28,416 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:19:28,416 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:19:28,417 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:19:28,417 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:19:28,417 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:19:28,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:19:28,417 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:19:28,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:19:28,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:19:28,418 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:19:28,418 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:19:28,418 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:19:28,418 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:19:28,418 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:19:28,418 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:19:28,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:19:28,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:19:28,420 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:19:28,421 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:19:28,421 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:19:28,421 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:19:28,421 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:19:28,421 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:19:28,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:19:28,422 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_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/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 -> 534681b11e8e68e6058985d885b01f2cbfa43e5b [2018-11-18 15:19:28,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:19:28,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:19:28,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:19:28,464 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:19:28,464 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:19:28,465 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-11-18 15:19:28,524 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/data/d3edd5260/c63f40c2f7cd44fab307e26034b089f3/FLAGfd4789c39 [2018-11-18 15:19:28,933 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:19:28,933 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-11-18 15:19:28,945 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/data/d3edd5260/c63f40c2f7cd44fab307e26034b089f3/FLAGfd4789c39 [2018-11-18 15:19:29,295 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/data/d3edd5260/c63f40c2f7cd44fab307e26034b089f3 [2018-11-18 15:19:29,297 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:19:29,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:19:29,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:19:29,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:19:29,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:19:29,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f05d472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29, skipping insertion in model container [2018-11-18 15:19:29,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:19:29,345 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:19:29,582 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:19:29,590 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:19:29,640 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:19:29,731 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:19:29,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29 WrapperNode [2018-11-18 15:19:29,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:19:29,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:19:29,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:19:29,732 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:19:29,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:19:29,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:19:29,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:19:29,771 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:19:29,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... [2018-11-18 15:19:29,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:19:29,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:19:29,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:19:29,802 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:19:29,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:19:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/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 [2018-11-18 15:19:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:19:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:19:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-18 15:19:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-18 15:19:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 15:19:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 15:19:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:19:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 15:19:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 15:19:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:19:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:19:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:19:30,602 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:19:30,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:19:30 BoogieIcfgContainer [2018-11-18 15:19:30,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:19:30,603 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:19:30,603 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:19:30,612 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:19:30,613 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:19:30" (1/1) ... [2018-11-18 15:19:30,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:19:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 87 states and 155 transitions. [2018-11-18 15:19:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 155 transitions. [2018-11-18 15:19:30,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:19:30,657 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:19:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 86 states and 138 transitions. [2018-11-18 15:19:30,743 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 138 transitions. [2018-11-18 15:19:30,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 15:19:30,744 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:19:30,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:30,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 89 states and 141 transitions. [2018-11-18 15:19:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 141 transitions. [2018-11-18 15:19:30,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:19:30,948 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:19:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:31,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 88 states and 139 transitions. [2018-11-18 15:19:31,140 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 139 transitions. [2018-11-18 15:19:31,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 15:19:31,140 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:19:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:31,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 88 states and 136 transitions. [2018-11-18 15:19:31,168 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions. [2018-11-18 15:19:31,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:19:31,171 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:31,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:19:31,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 92 states and 142 transitions. [2018-11-18 15:19:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 142 transitions. [2018-11-18 15:19:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:19:31,280 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:19:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 94 states and 142 transitions. [2018-11-18 15:19:31,320 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 142 transitions. [2018-11-18 15:19:31,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 15:19:31,320 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:19:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 97 states and 143 transitions. [2018-11-18 15:19:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 143 transitions. [2018-11-18 15:19:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 15:19:31,656 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:19:31,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:31,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 100 states and 144 transitions. [2018-11-18 15:19:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 144 transitions. [2018-11-18 15:19:31,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 15:19:31,782 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:19:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:32,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 110 states and 155 transitions. [2018-11-18 15:19:32,769 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions. [2018-11-18 15:19:32,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 15:19:32,770 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:19:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:19:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:19:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 118 states and 162 transitions. [2018-11-18 15:19:33,287 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2018-11-18 15:19:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 15:19:33,287 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:19:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:19:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:19:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:19:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:19:33,386 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2018-11-18 15:19:33,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:19:33 ImpRootNode [2018-11-18 15:19:33,447 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:19:33,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:19:33,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:19:33,448 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:19:33,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:19:30" (3/4) ... [2018-11-18 15:19:33,450 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 15:19:33,508 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_770ef3d7-4aa3-413c-bd80-e7a7c447f7c6/bin-2019/ukojak/witness.graphml [2018-11-18 15:19:33,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:19:33,509 INFO L168 Benchmark]: Toolchain (without parser) took 4210.99 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 955.8 MB in the beginning and 1.0 GB in the end (delta: -65.4 MB). Peak memory consumption was 156.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:19:33,510 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:19:33,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:19:33,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.73 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:19:33,511 INFO L168 Benchmark]: Boogie Preprocessor took 31.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:19:33,512 INFO L168 Benchmark]: RCFGBuilder took 800.81 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:19:33,512 INFO L168 Benchmark]: CodeCheck took 2843.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.4 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:19:33,512 INFO L168 Benchmark]: Witness Printer took 60.57 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:19:33,516 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, 105 locations, 1 error locations. UNSAFE Result, 2.7s OverallTime, 11 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16570 SDtfs, 4604 SDslu, 5596 SDs, 0 SdLazy, 7346 SolverSat, 3638 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1340 GetRequests, 1267 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1274 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 10892 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 16/16 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: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] struct list *data = ((void *)0); [L628] COND TRUE __VERIFIER_nondet_int() [L629] EXPR, FCALL malloc(sizeof *node) [L629] struct node *node = malloc(sizeof *node); [L630] COND FALSE !(!node) [L632] FCALL node->next = node [L633] FCALL node->value = __VERIFIER_nondet_int() [L634] EXPR, FCALL malloc(sizeof *item) [L634] struct list *item = malloc(sizeof *item); [L635] COND FALSE !(!item) [L637] FCALL item->slist = node [L638] FCALL item->next = data [L639] data = item [L628] COND FALSE !(__VERIFIER_nondet_int()) [L641] COND FALSE !(!data) [L643] CALL inspect_before(data) [L604] COND FALSE !(!(shape)) [L604] COND FALSE !(0) [L605] FCALL shape->next [L605] COND FALSE !(shape->next) [L611] COND FALSE !(!(shape)) [L611] COND FALSE !(0) [L612] EXPR, FCALL shape->next [L612] COND FALSE !(!(shape->next == ((void *)0))) [L612] COND FALSE !(0) [L613] EXPR, FCALL shape->slist [L613] COND FALSE !(!(shape->slist)) [L613] COND FALSE !(0) [L614] EXPR, FCALL shape->slist [L614] EXPR, FCALL shape->slist->next [L614] COND TRUE !(shape->slist->next == ((void *)0)) [L614] CALL fail() [L554] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 432.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -184.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.73 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 800.81 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * CodeCheck took 2843.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.4 MB). Peak memory consumption was 114.5 MB. Max. memory is 11.5 GB. * Witness Printer took 60.57 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...