./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 54165abed718b8d39f88748583b76365fb540324 ....................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-28 04:42:45,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:45,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:45,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:45,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:45,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:45,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:45,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:45,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:45,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:45,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:45,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:45,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:45,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:45,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:45,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:45,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:45,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:45,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:45,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:45,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:45,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:45,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:45,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:45,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:45,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:45,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:45,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:45,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:45,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:45,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:45,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:45,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:45,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:45,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:45,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:45,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:45,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:45,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:45,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:45,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:45,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:42:45,708 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:45,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:45,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:42:45,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:42:45,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:45,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:45,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:45,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:42:45,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:45,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:42:45,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:45,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:42:45,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:45,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:42:45,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:42:45,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:42:45,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:45,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:42:45,717 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:45,718 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:45,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:45,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:45,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:45,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:45,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:45,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:42:45,719 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:45,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:45,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:42:45,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54165abed718b8d39f88748583b76365fb540324 [2020-11-28 04:42:46,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:46,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:46,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:46,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:46,043 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:46,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2020-11-28 04:42:46,113 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/data/9c3a6ca56/07b2c0559792436dbfda3d6ce24d736f/FLAG65b8a2f90 [2020-11-28 04:42:46,684 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:46,687 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2020-11-28 04:42:46,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/data/9c3a6ca56/07b2c0559792436dbfda3d6ce24d736f/FLAG65b8a2f90 [2020-11-28 04:42:46,945 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/data/9c3a6ca56/07b2c0559792436dbfda3d6ce24d736f [2020-11-28 04:42:46,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:46,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:46,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:46,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:46,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:46,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:46" (1/1) ... [2020-11-28 04:42:46,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cb1d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:46, skipping insertion in model container [2020-11-28 04:42:46,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:46" (1/1) ... [2020-11-28 04:42:46,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:47,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:47,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:47,376 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:47,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:47,495 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:47,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47 WrapperNode [2020-11-28 04:42:47,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:47,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:47,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:47,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:47,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:47,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:47,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:47,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:47,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... [2020-11-28 04:42:47,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:47,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:47,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:47,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:47,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/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 [2020-11-28 04:42:47,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:42:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2020-11-28 04:42:47,783 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2020-11-28 04:42:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-28 04:42:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-28 04:42:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:42:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:42:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 04:42:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:42:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 04:42:47,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:42:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:42:47,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:48,876 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:48,876 INFO L298 CfgBuilder]: Removed 47 assume(true) statements. [2020-11-28 04:42:48,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:48 BoogieIcfgContainer [2020-11-28 04:42:48,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:48,879 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:48,880 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:48,892 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:48,892 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:48" (1/1) ... [2020-11-28 04:42:48,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:48,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 82 states and 149 transitions. [2020-11-28 04:42:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 149 transitions. [2020-11-28 04:42:48,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:48,970 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:49,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 80 states and 130 transitions. [2020-11-28 04:42:49,138 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 130 transitions. [2020-11-28 04:42:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:42:49,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 83 states and 133 transitions. [2020-11-28 04:42:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 133 transitions. [2020-11-28 04:42:49,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:42:49,258 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:49,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 82 states and 131 transitions. [2020-11-28 04:42:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 131 transitions. [2020-11-28 04:42:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:49,519 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:42:49,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:49,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 82 states and 128 transitions. [2020-11-28 04:42:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 128 transitions. [2020-11-28 04:42:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:42:49,589 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 85 states and 133 transitions. [2020-11-28 04:42:49,687 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 133 transitions. [2020-11-28 04:42:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:42:49,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 86 states and 132 transitions. [2020-11-28 04:42:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 132 transitions. [2020-11-28 04:42:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:42:49,765 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:42:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 89 states and 133 transitions. [2020-11-28 04:42:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 133 transitions. [2020-11-28 04:42:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:42:50,246 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:42:50,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 92 states and 134 transitions. [2020-11-28 04:42:50,418 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2020-11-28 04:42:50,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:42:50,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 101 states and 144 transitions. [2020-11-28 04:42:52,124 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2020-11-28 04:42:52,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:42:52,125 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 108 states and 150 transitions. [2020-11-28 04:42:52,933 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 150 transitions. [2020-11-28 04:42:52,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 04:42:52,934 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:52,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:52,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:53,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:53,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:53,091 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2020-11-28 04:42:53,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:53 ImpRootNode [2020-11-28 04:42:53,135 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:53,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:53,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:53,136 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:53,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:48" (3/4) ... [2020-11-28 04:42:53,138 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:42:53,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1c918bb-6e05-4e73-a7d2-d620de83ebbb/bin/ukojak/witness.graphml [2020-11-28 04:42:53,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:53,228 INFO L168 Benchmark]: Toolchain (without parser) took 6277.68 ms. Allocated memory was 98.6 MB in the beginning and 151.0 MB in the end (delta: 52.4 MB). Free memory was 60.2 MB in the beginning and 122.4 MB in the end (delta: -62.2 MB). Peak memory consumption was 74.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:53,229 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 98.6 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:53,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.43 ms. Allocated memory is still 98.6 MB. Free memory was 60.0 MB in the beginning and 60.5 MB in the end (delta: -482.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:53,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.47 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 57.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:53,231 INFO L168 Benchmark]: Boogie Preprocessor took 77.18 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 55.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:53,233 INFO L168 Benchmark]: RCFGBuilder took 1211.18 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 55.1 MB in the beginning and 47.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:53,234 INFO L168 Benchmark]: CodeCheck took 4255.75 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 47.6 MB in the beginning and 39.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:53,235 INFO L168 Benchmark]: Witness Printer took 90.08 ms. Allocated memory is still 151.0 MB. Free memory was 39.1 MB in the beginning and 122.4 MB in the end (delta: -83.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:53,240 INFO L339 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, 82 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16250 SDtfs, 3832 SDslu, 4756 SDs, 0 SdLazy, 7346 SolverSat, 3638 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1326 GetRequests, 1256 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1252 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 9585 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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L638] struct list *data = ((void *)0); [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); [L641] COND FALSE !(!node) [L643] node->next = node [L644] node->value = __VERIFIER_nondet_int() [L645] struct list *item = malloc(sizeof *item); [L646] COND FALSE !(!item) [L648] item->slist = node [L649] item->next = data [L650] data = item [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L615] COND FALSE !(!(shape)) [L616] shape->next [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) [L623] EXPR shape->next [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist [L625] EXPR shape->slist->next [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "merge_sort-1.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 98.6 MB. Free memory is still 77.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 546.43 ms. Allocated memory is still 98.6 MB. Free memory was 60.0 MB in the beginning and 60.5 MB in the end (delta: -482.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.47 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 57.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.18 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 55.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1211.18 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 55.1 MB in the beginning and 47.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. * CodeCheck took 4255.75 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 47.6 MB in the beginning and 39.1 MB in the end (delta: 8.5 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * Witness Printer took 90.08 ms. Allocated memory is still 151.0 MB. Free memory was 39.1 MB in the beginning and 122.4 MB in the end (delta: -83.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...