./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/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 b50a14aaadb91f0d2171e26e1cac3b7310be0682 ............................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-26 02:52:24,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:52:24,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:52:24,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:52:24,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:52:24,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:52:24,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:52:24,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:52:24,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:52:24,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:52:24,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:52:24,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:52:24,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:52:24,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:52:24,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:52:24,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:52:24,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:52:24,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:52:24,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:52:24,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:52:24,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:52:24,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:52:24,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:52:24,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:52:24,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:52:24,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:52:24,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:52:24,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:52:24,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:52:24,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:52:24,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:52:24,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:52:24,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:52:24,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:52:24,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:52:24,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:52:24,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:52:24,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:52:24,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:52:24,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:52:24,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:52:24,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:52:24,443 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:52:24,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:52:24,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:52:24,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:52:24,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:52:24,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:52:24,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:52:24,456 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:52:24,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:52:24,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:52:24,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:52:24,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:52:24,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:52:24,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:52:24,458 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:52:24,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:52:24,458 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:52:24,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:52:24,459 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:52:24,460 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:52:24,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:52:24,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:52:24,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:52:24,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:52:24,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:52:24,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:52:24,462 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:52:24,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:52:24,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:52:24,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_008850d6-4cc8-4717-bb79-9255247ae492/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(__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 -> b50a14aaadb91f0d2171e26e1cac3b7310be0682 [2019-11-26 02:52:24,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:52:24,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:52:24,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:52:24,631 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:52:24,631 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:52:24,632 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/../../sv-benchmarks/c/heap-manipulation/tree-2.i [2019-11-26 02:52:24,682 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/data/1fec8981c/99f14803461f49fc8cb51afc0cd41830/FLAGd0c7f18dd [2019-11-26 02:52:25,119 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:52:25,120 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/sv-benchmarks/c/heap-manipulation/tree-2.i [2019-11-26 02:52:25,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/data/1fec8981c/99f14803461f49fc8cb51afc0cd41830/FLAGd0c7f18dd [2019-11-26 02:52:25,146 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/data/1fec8981c/99f14803461f49fc8cb51afc0cd41830 [2019-11-26 02:52:25,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:52:25,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:52:25,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:25,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:52:25,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:52:25,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca25ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25, skipping insertion in model container [2019-11-26 02:52:25,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:52:25,198 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:52:25,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:25,601 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:52:25,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:25,696 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:52:25,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25 WrapperNode [2019-11-26 02:52:25,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:25,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:25,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:52:25,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:52:25,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:25,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:52:25,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:52:25,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:52:25,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... [2019-11-26 02:52:25,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:52:25,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:52:25,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:52:25,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:52:25,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/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 [2019-11-26 02:52:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:52:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2019-11-26 02:52:25,870 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2019-11-26 02:52:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:52:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:52:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 02:52:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:52:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:52:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:52:25,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:52:26,568 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:52:26,568 INFO L284 CfgBuilder]: Removed 21 assume(true) statements. [2019-11-26 02:52:26,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:26 BoogieIcfgContainer [2019-11-26 02:52:26,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:52:26,570 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:52:26,570 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:52:26,580 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:52:26,580 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:26" (1/1) ... [2019-11-26 02:52:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:26,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:26,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2019-11-26 02:52:26,626 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2019-11-26 02:52:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:52:26,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:26,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:26,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2019-11-26 02:52:26,732 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2019-11-26 02:52:26,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:52:26,733 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2019-11-26 02:52:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2019-11-26 02:52:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:52:26,905 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2019-11-26 02:52:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2019-11-26 02:52:27,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:52:27,176 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:27,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2019-11-26 02:52:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2019-11-26 02:52:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:52:27,513 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:29,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 39 states and 65 transitions. [2019-11-26 02:52:29,313 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 65 transitions. [2019-11-26 02:52:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:52:29,316 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:31,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 45 states and 78 transitions. [2019-11-26 02:52:31,275 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2019-11-26 02:52:31,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 02:52:31,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:31,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 48 states and 86 transitions. [2019-11-26 02:52:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 86 transitions. [2019-11-26 02:52:32,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 02:52:32,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 49 states and 89 transitions. [2019-11-26 02:52:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 89 transitions. [2019-11-26 02:52:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-26 02:52:33,031 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:52:35,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 51 states and 107 transitions. [2019-11-26 02:52:35,491 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 107 transitions. [2019-11-26 02:52:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-26 02:52:35,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:52:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:52:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:52:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:52:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:52:36,360 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 10 iterations. [2019-11-26 02:52:36,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:52:36 ImpRootNode [2019-11-26 02:52:36,394 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:52:36,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:52:36,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:52:36,395 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:52:36,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:26" (3/4) ... [2019-11-26 02:52:36,397 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:52:36,460 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_008850d6-4cc8-4717-bb79-9255247ae492/bin/ukojak/witness.graphml [2019-11-26 02:52:36,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:52:36,462 INFO L168 Benchmark]: Toolchain (without parser) took 11311.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 939.4 MB in the beginning and 900.6 MB in the end (delta: 38.8 MB). Peak memory consumption was 209.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:36,463 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:36,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:36,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:36,465 INFO L168 Benchmark]: Boogie Preprocessor took 49.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:36,466 INFO L168 Benchmark]: RCFGBuilder took 756.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:36,467 INFO L168 Benchmark]: CodeCheck took 9824.16 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 52.4 MB). Free memory was 1.0 GB in the beginning and 902.7 MB in the end (delta: 130.9 MB). Peak memory consumption was 183.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:36,467 INFO L168 Benchmark]: Witness Printer took 65.49 ms. Allocated memory is still 1.2 GB. Free memory was 902.7 MB in the beginning and 900.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:36,471 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Result: UNSAFE, OverallTime: 9.7s, OverallIterations: 10, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 6416 SDtfs, 3048 SDslu, 4060 SDs, 0 SdLazy, 9152 SolverSat, 3600 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1249 GetRequests, 1136 SyntacticMatches, 13 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3016 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 12549 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 16/27 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: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L574] struct node *nodelast = ((void *)0); [L575] struct node *node = ((void *)0); [L576] COND TRUE __VERIFIER_nondet_int() [L577] node = malloc(sizeof *node) [L578] COND FALSE !(!node) [L580] node->left = ((void *)0) [L581] node->right = nodelast [L582] COND FALSE !(\read(*nodelast)) [L584] int value = __VERIFIER_nondet_int(); [L585] node->value = value [L586] nodelast = node [L576] COND FALSE !(__VERIFIER_nondet_int()) [L588] COND TRUE node != ((void *)0) [L589] node->left = malloc(sizeof *node) [L590] COND FALSE !(!node) [L592] EXPR node->left [L592] node->left->left = ((void *)0) [L593] EXPR node->left [L593] node->left->right = ((void *)0) [L594] EXPR node->left [L594] node->left->value = 42 [L595] EXPR node->left [L595] node->left->parent = node [L596] EXPR node->right [L596] node = node->right [L588] COND FALSE !(node != ((void *)0)) [L598] return nodelast; [L619] struct node *data = create_tree(); [L620] COND FALSE !(!data) [L564] COND FALSE !(!(node)) [L565] COND TRUE node != ((void *)0) [L566] node->left [L566] COND TRUE node->left [L567] EXPR node->left [L567] EXPR node->left->value [L567] COND FALSE !(!(node->left->value == 42)) [L568] EXPR node->value [L568] COND TRUE !(node->value) [L568] CALL fail() [L554] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 546.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 756.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. * CodeCheck took 9824.16 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 52.4 MB). Free memory was 1.0 GB in the beginning and 902.7 MB in the end (delta: 130.9 MB). Peak memory consumption was 183.4 MB. Max. memory is 11.5 GB. * Witness Printer took 65.49 ms. Allocated memory is still 1.2 GB. Free memory was 902.7 MB in the beginning and 900.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...