./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3_false-unreach-call_true-termination.c --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_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/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 5417ea5971c5cfa3624e07fbe8bf33ef4632cb6f .......................................................................................................................................................................................................................................... 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 04:49:26,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:49:26,964 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:49:26,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:49:26,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:49:26,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:49:26,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:49:26,974 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:49:26,975 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:49:26,976 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:49:26,976 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:49:26,977 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:49:26,977 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:49:26,978 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:49:26,978 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:49:26,979 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:49:26,980 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:49:26,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:49:26,982 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:49:26,983 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:49:26,984 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:49:26,985 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:49:26,986 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:49:26,987 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:49:26,987 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:49:26,987 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:49:26,988 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:49:26,989 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:49:26,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:49:26,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:49:26,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:49:26,991 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:49:26,991 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:49:26,991 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:49:26,992 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:49:26,992 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:49:26,992 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 04:49:27,002 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:49:27,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:49:27,003 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:49:27,003 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:49:27,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:49:27,004 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:49:27,004 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:49:27,004 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:49:27,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:49:27,004 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:49:27,004 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:49:27,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:49:27,005 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:49:27,005 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:49:27,005 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:49:27,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:49:27,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:49:27,005 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 04:49:27,005 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 04:49:27,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:49:27,006 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:49:27,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 04:49:27,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:49:27,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:49:27,006 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:49:27,006 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 04:49:27,006 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:49:27,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:49:27,006 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_e25579b7-53af-48e7-a443-ce243d1d8555/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 -> 5417ea5971c5cfa3624e07fbe8bf33ef4632cb6f [2018-11-10 04:49:27,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:49:27,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:49:27,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:49:27,039 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:49:27,039 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:49:27,039 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/sum_2x3_false-unreach-call_true-termination.c [2018-11-10 04:49:27,075 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/data/c80643fb6/96f522d4b9de4c089bc7f41c52edc1e9/FLAGd35c1db78 [2018-11-10 04:49:27,376 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:49:27,376 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/sv-benchmarks/c/recursive-simple/sum_2x3_false-unreach-call_true-termination.c [2018-11-10 04:49:27,380 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/data/c80643fb6/96f522d4b9de4c089bc7f41c52edc1e9/FLAGd35c1db78 [2018-11-10 04:49:27,390 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/data/c80643fb6/96f522d4b9de4c089bc7f41c52edc1e9 [2018-11-10 04:49:27,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:49:27,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:49:27,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:49:27,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:49:27,397 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:49:27,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46673125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27, skipping insertion in model container [2018-11-10 04:49:27,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:49:27,417 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:49:27,514 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:49:27,516 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:49:27,526 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:49:27,534 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:49:27,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27 WrapperNode [2018-11-10 04:49:27,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:49:27,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:49:27,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:49:27,535 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:49:27,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:49:27,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:49:27,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:49:27,555 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:49:27,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:49:27,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:49:27,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:49:27,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:49:27,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:49:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/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 04:49:27,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:49:27,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:49:27,646 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-11-10 04:49:27,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-11-10 04:49:27,748 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:49:27,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:49:27 BoogieIcfgContainer [2018-11-10 04:49:27,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:49:27,749 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 04:49:27,749 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 04:49:27,756 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 04:49:27,756 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:49:27" (1/1) ... [2018-11-10 04:49:27,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:49:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:49:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-10 04:49:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-10 04:49:27,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 04:49:27,803 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:49:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:49:27,907 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 04:49:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:49:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2018-11-10 04:49:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-10 04:49:27,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 04:49:27,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:49:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:49:28,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 04:49:28,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:49:28,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 23 transitions. [2018-11-10 04:49:28,158 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-11-10 04:49:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 04:49:28,159 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:49:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:49:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:49:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:49:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:49:28,222 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-11-10 04:49:28,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 04:49:28 ImpRootNode [2018-11-10 04:49:28,249 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 04:49:28,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:49:28,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:49:28,250 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:49:28,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:49:27" (3/4) ... [2018-11-10 04:49:28,252 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 04:49:28,287 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e25579b7-53af-48e7-a443-ce243d1d8555/bin-2019/ukojak/witness.graphml [2018-11-10 04:49:28,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:49:28,288 INFO L168 Benchmark]: Toolchain (without parser) took 894.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -114.3 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:49:28,289 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:49:28,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.67 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:49:28,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.78 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:49:28,290 INFO L168 Benchmark]: Boogie Preprocessor took 9.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:49:28,291 INFO L168 Benchmark]: RCFGBuilder took 183.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:49:28,291 INFO L168 Benchmark]: CodeCheck took 499.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. [2018-11-10 04:49:28,292 INFO L168 Benchmark]: Witness Printer took 38.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:49:28,294 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 2 procedures, 16 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 18 SDslu, 26 SDs, 0 SdLazy, 72 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 197 GetRequests, 182 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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: 16]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int a = 2; [L13] int b = 3; [L14] CALL, EXPR sum(a, b) VAL [\old(m)=3, \old(n)=2] [L4] COND FALSE !(n <= 0) VAL [\old(m)=3, \old(n)=2, m=3, n=2] [L7] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=1] [L4] COND FALSE !(n <= 0) VAL [\old(m)=4, \old(n)=1, m=4, n=1] [L7] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=5, \old(n)=0] [L4] COND TRUE n <= 0 [L5] RET return m + n; VAL [\old(m)=5, \old(n)=0, \result=5, m=5, n=0] [L7] EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=1, m=4, n=1, sum(n - 1, m + 1)=5] [L7] RET return sum(n - 1, m + 1); [L7] EXPR sum(n - 1, m + 1) VAL [\old(m)=3, \old(n)=2, m=3, n=2, sum(n - 1, m + 1)=5] [L7] RET return sum(n - 1, m + 1); [L14] EXPR sum(a, b) [L14] int result = sum(a, b); [L15] COND TRUE result == a + b [L16] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.67 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.78 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 183.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * CodeCheck took 499.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 11.5 GB. * Witness Printer took 38.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...