./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o2_false-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o2_false-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/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 a033d09eab07f8bc6e49bb4301ebd6c89110f535 ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:05:03,004 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:05:03,005 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:05:03,013 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:05:03,013 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:05:03,013 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:05:03,014 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:05:03,015 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:05:03,016 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:05:03,017 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:05:03,018 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:05:03,018 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:05:03,019 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:05:03,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:05:03,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:05:03,020 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:05:03,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:05:03,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:05:03,023 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:05:03,024 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:05:03,025 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:05:03,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:05:03,028 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:05:03,028 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:05:03,028 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:05:03,029 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:05:03,030 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:05:03,030 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:05:03,031 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:05:03,031 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:05:03,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:05:03,032 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:05:03,032 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:05:03,032 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:05:03,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:05:03,033 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:05:03,033 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 12:05:03,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:05:03,040 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:05:03,041 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:05:03,041 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:05:03,042 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:05:03,042 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:05:03,042 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:05:03,042 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:05:03,043 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:05:03,043 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:05:03,043 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:05:03,043 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:05:03,043 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:05:03,043 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:05:03,044 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:05:03,044 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:05:03,044 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:05:03,044 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:05:03,044 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 12:05:03,044 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 12:05:03,045 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:05:03,045 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:05:03,045 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 12:05:03,045 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:05:03,045 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:05:03,045 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:05:03,045 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 12:05:03,046 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:05:03,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:05:03,048 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_126cb3ab-507f-43bf-a30b-1055066894c8/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 -> a033d09eab07f8bc6e49bb4301ebd6c89110f535 [2018-11-18 12:05:03,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:05:03,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:05:03,080 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:05:03,081 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:05:03,081 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:05:03,082 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id2_b3_o2_false-unreach-call_true-termination_true-no-overflow.c [2018-11-18 12:05:03,119 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/data/12afb5c95/68cfb79969a94f41aa87840611e403ea/FLAGa04e1594a [2018-11-18 12:05:03,407 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:05:03,408 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/sv-benchmarks/c/recursive-simple/id2_b3_o2_false-unreach-call_true-termination_true-no-overflow.c [2018-11-18 12:05:03,411 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/data/12afb5c95/68cfb79969a94f41aa87840611e403ea/FLAGa04e1594a [2018-11-18 12:05:03,421 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/data/12afb5c95/68cfb79969a94f41aa87840611e403ea [2018-11-18 12:05:03,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:05:03,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:05:03,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:05:03,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:05:03,427 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:05:03,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55626f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03, skipping insertion in model container [2018-11-18 12:05:03,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:05:03,445 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:05:03,550 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:05:03,552 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:05:03,561 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:05:03,570 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:05:03,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03 WrapperNode [2018-11-18 12:05:03,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:05:03,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:05:03,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:05:03,571 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:05:03,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:05:03,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:05:03,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:05:03,590 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:05:03,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:05:03,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:05:03,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:05:03,601 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:05:03,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:05:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 12:05:03,685 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2018-11-18 12:05:03,685 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2018-11-18 12:05:03,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:05:03,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:05:03,685 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-18 12:05:03,686 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-18 12:05:03,849 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:05:03,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:05:03 BoogieIcfgContainer [2018-11-18 12:05:03,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:05:03,850 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 12:05:03,850 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 12:05:03,859 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 12:05:03,860 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:05:03" (1/1) ... [2018-11-18 12:05:03,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:05:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:05:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2018-11-18 12:05:03,908 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-18 12:05:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:05:03,913 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:05:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:05:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:05:04,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:05:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-11-18 12:05:04,157 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-18 12:05:04,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 12:05:04,158 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:05:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:05:04,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:05:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 12:05:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2018-11-18 12:05:04,594 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2018-11-18 12:05:04,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 12:05:04,595 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 12:05:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:05:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:05:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:05:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:05:04,678 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-11-18 12:05:04,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 12:05:04 ImpRootNode [2018-11-18 12:05:04,702 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 12:05:04,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:05:04,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:05:04,703 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:05:04,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:05:03" (3/4) ... [2018-11-18 12:05:04,705 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 12:05:04,736 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_126cb3ab-507f-43bf-a30b-1055066894c8/bin-2019/ukojak/witness.graphml [2018-11-18 12:05:04,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:05:04,737 INFO L168 Benchmark]: Toolchain (without parser) took 1312.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 961.9 MB in the beginning and 1.0 GB in the end (delta: -50.8 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:04,738 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:05:04,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.58 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:04,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:04,739 INFO L168 Benchmark]: Boogie Preprocessor took 10.32 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:05:04,740 INFO L168 Benchmark]: RCFGBuilder took 249.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:04,740 INFO L168 Benchmark]: CodeCheck took 852.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:05:04,740 INFO L168 Benchmark]: Witness Printer took 33.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:05:04,743 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 24 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 68 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 25]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L22] unsigned int input = __VERIFIER_nondet_uint(); [L23] CALL, EXPR id(input) VAL [\old(x)=2] [L8] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L9] CALL, EXPR id2(x-1) VAL [\old(x)=1] [L15] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L16] CALL, EXPR id(x-1) VAL [\old(x)=0] [L8] COND TRUE x==0 [L8] RET return 0; VAL [\old(x)=0, \result=0, x=0] [L16] EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L16] unsigned int ret = id(x-1) + 1; [L17] COND FALSE !(ret > 3) [L18] RET return ret; VAL [\old(x)=1, \result=1, ret=1, x=1] [L9] EXPR id2(x-1) VAL [\old(x)=2, id2(x-1)=1, x=2] [L9] unsigned int ret = id2(x-1) + 1; [L10] COND FALSE !(ret > 3) [L11] RET return ret; VAL [\old(x)=2, \result=2, ret=2, x=2] [L23] EXPR id(input) [L23] unsigned int result = id(input); [L24] COND TRUE result == 2 [L25] __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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.58 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 19.07 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.32 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 249.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 852.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. * Witness Printer took 33.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...