./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/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_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/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 0.1.23-1dbac8b [2018-11-10 05:34:20,358 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:34:20,360 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:34:20,368 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:34:20,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:34:20,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:34:20,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:34:20,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:34:20,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:34:20,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:34:20,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:34:20,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:34:20,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:34:20,375 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:34:20,376 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:34:20,376 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:34:20,377 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:34:20,378 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:34:20,380 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:34:20,381 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:34:20,382 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:34:20,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:34:20,384 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:34:20,384 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:34:20,385 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:34:20,385 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:34:20,386 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:34:20,387 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:34:20,387 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:34:20,388 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:34:20,388 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:34:20,389 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:34:20,389 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:34:20,389 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:34:20,390 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:34:20,390 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:34:20,390 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 05:34:20,400 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:34:20,400 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:34:20,401 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:34:20,401 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:34:20,401 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:34:20,402 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:34:20,402 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:34:20,402 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:34:20,402 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:34:20,402 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:34:20,402 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:34:20,402 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:34:20,403 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:34:20,403 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:34:20,403 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:34:20,403 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:34:20,403 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:34:20,403 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 05:34:20,404 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 05:34:20,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:34:20,404 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:34:20,404 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 05:34:20,404 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:34:20,404 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:34:20,405 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:34:20,405 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 05:34:20,405 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:34:20,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:34:20,405 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_03f59ffc-3cca-488e-8997-900c4b33ed4c/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 [2018-11-10 05:34:20,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:34:20,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:34:20,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:34:20,439 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:34:20,440 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:34:20,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/../../sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-11-10 05:34:20,475 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/data/75c2e78f7/3ff8fd8069d6477bb96d51dadb853224/FLAGb38ec8ef4 [2018-11-10 05:34:20,898 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:34:20,899 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/sv-benchmarks/c/heap-manipulation/merge_sort_false-unreach-call_false-valid-memcleanup.i [2018-11-10 05:34:20,905 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/data/75c2e78f7/3ff8fd8069d6477bb96d51dadb853224/FLAGb38ec8ef4 [2018-11-10 05:34:20,915 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/data/75c2e78f7/3ff8fd8069d6477bb96d51dadb853224 [2018-11-10 05:34:20,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:34:20,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:34:20,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:34:20,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:34:20,920 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:34:20,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:34:20" (1/1) ... [2018-11-10 05:34:20,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2863403e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:20, skipping insertion in model container [2018-11-10 05:34:20,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:34:20" (1/1) ... [2018-11-10 05:34:20,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:34:20,955 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:34:21,139 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:34:21,145 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:34:21,185 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:34:21,228 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:34:21,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21 WrapperNode [2018-11-10 05:34:21,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:34:21,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:34:21,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:34:21,229 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:34:21,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:34:21,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:34:21,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:34:21,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:34:21,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... [2018-11-10 05:34:21,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:34:21,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:34:21,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:34:21,335 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:34:21,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/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 [2018-11-10 05:34:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 05:34:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 05:34:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-10 05:34:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-10 05:34:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-10 05:34:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-10 05:34:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 05:34:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 05:34:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 05:34:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:34:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:34:22,219 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:34:22,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:34:22 BoogieIcfgContainer [2018-11-10 05:34:22,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:34:22,220 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 05:34:22,220 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 05:34:22,227 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 05:34:22,228 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:34:22" (1/1) ... [2018-11-10 05:34:22,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:34:22,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 87 states and 155 transitions. [2018-11-10 05:34:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 155 transitions. [2018-11-10 05:34:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-10 05:34:22,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:34:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 86 states and 138 transitions. [2018-11-10 05:34:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 138 transitions. [2018-11-10 05:34:22,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 05:34:22,343 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:34:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 89 states and 141 transitions. [2018-11-10 05:34:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 141 transitions. [2018-11-10 05:34:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:34:22,413 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:34:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 88 states and 139 transitions. [2018-11-10 05:34:22,553 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 139 transitions. [2018-11-10 05:34:22,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 05:34:22,554 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 05:34:22,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 88 states and 136 transitions. [2018-11-10 05:34:22,583 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 136 transitions. [2018-11-10 05:34:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 05:34:22,583 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:22,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:34:22,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 92 states and 142 transitions. [2018-11-10 05:34:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 142 transitions. [2018-11-10 05:34:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 05:34:22,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:34:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 94 states and 142 transitions. [2018-11-10 05:34:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 142 transitions. [2018-11-10 05:34:22,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 05:34:22,721 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 05:34:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:22,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 97 states and 143 transitions. [2018-11-10 05:34:22,957 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 143 transitions. [2018-11-10 05:34:22,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 05:34:22,958 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 05:34:23,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 100 states and 144 transitions. [2018-11-10 05:34:23,052 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 144 transitions. [2018-11-10 05:34:23,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 05:34:23,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:34:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 110 states and 155 transitions. [2018-11-10 05:34:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 155 transitions. [2018-11-10 05:34:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 05:34:23,759 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:34:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:34:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:34:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 118 states and 162 transitions. [2018-11-10 05:34:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2018-11-10 05:34:24,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 05:34:24,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:34:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:34:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:34:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:34:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:34:24,297 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2018-11-10 05:34:24,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 05:34:24 ImpRootNode [2018-11-10 05:34:24,329 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 05:34:24,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:34:24,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:34:24,329 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:34:24,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:34:22" (3/4) ... [2018-11-10 05:34:24,332 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:34:24,380 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_03f59ffc-3cca-488e-8997-900c4b33ed4c/bin-2019/ukojak/witness.graphml [2018-11-10 05:34:24,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:34:24,381 INFO L168 Benchmark]: Toolchain (without parser) took 3463.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 957.5 MB in the beginning and 957.0 MB in the end (delta: 548.9 kB). Peak memory consumption was 199.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:24,382 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-11-10 05:34:24,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.73 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 928.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:24,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 928.0 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:24,383 INFO L168 Benchmark]: Boogie Preprocessor took 29.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:24,384 INFO L168 Benchmark]: RCFGBuilder took 885.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.6 MB in the end (delta: 124.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:24,384 INFO L168 Benchmark]: CodeCheck took 2108.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 984.6 MB in the beginning and 962.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 102.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:24,385 INFO L168 Benchmark]: Witness Printer took 51.49 ms. Allocated memory is still 1.2 GB. Free memory was 962.5 MB in the beginning and 957.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:24,389 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, 181 locations, 1 error locations. UNSAFE Result, 2.0s 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, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1342 GetRequests, 1267 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s 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] CALL node->value = __VERIFIER_nondet_int() [L633] RET 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 0.10 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 310.73 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 928.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 928.0 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 885.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 984.6 MB in the end (delta: 124.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 11.5 GB. * CodeCheck took 2108.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.2 MB). Free memory was 984.6 MB in the beginning and 962.5 MB in the end (delta: 22.1 MB). Peak memory consumption was 102.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.49 ms. Allocated memory is still 1.2 GB. Free memory was 962.5 MB in the beginning and 957.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...