./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i --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_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/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 0ab550a6e9aa370752671d7ad69781384c889e75 ................................................................................................................................................................................................................................................................. 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 17:51:15,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:51:15,778 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:51:15,785 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:51:15,785 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:51:15,786 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:51:15,787 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:51:15,788 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:51:15,789 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:51:15,790 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:51:15,791 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:51:15,791 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:51:15,791 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:51:15,792 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:51:15,792 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:51:15,793 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:51:15,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:51:15,795 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:51:15,796 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:51:15,797 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:51:15,798 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:51:15,799 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:51:15,801 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:51:15,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:51:15,801 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:51:15,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:51:15,803 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:51:15,803 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:51:15,804 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:51:15,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:51:15,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:51:15,805 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:51:15,805 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:51:15,806 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:51:15,806 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:51:15,807 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:51:15,807 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 17:51:15,823 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:51:15,823 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:51:15,823 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:51:15,824 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 17:51:15,824 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:51:15,824 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:51:15,824 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:51:15,824 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:51:15,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:51:15,825 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:51:15,826 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 17:51:15,826 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 17:51:15,826 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:51:15,826 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:51:15,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 17:51:15,826 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:51:15,826 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:51:15,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:51:15,827 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 17:51:15,827 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:51:15,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:51:15,827 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_5eeed8b1-8026-4abc-99ac-1a5879d803b4/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 -> 0ab550a6e9aa370752671d7ad69781384c889e75 [2018-11-18 17:51:15,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:51:15,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:51:15,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:51:15,880 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:51:15,880 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:51:15,881 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/../../sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-18 17:51:15,933 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/data/31fd9c6a6/6eac56aaab454b9d9fff9ea0a77a90f1/FLAGe6eff68d6 [2018-11-18 17:51:16,332 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:51:16,332 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/sv-benchmarks/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2018-11-18 17:51:16,338 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/data/31fd9c6a6/6eac56aaab454b9d9fff9ea0a77a90f1/FLAGe6eff68d6 [2018-11-18 17:51:16,351 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/data/31fd9c6a6/6eac56aaab454b9d9fff9ea0a77a90f1 [2018-11-18 17:51:16,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:51:16,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:51:16,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:51:16,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:51:16,360 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:51:16,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88e9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16, skipping insertion in model container [2018-11-18 17:51:16,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:51:16,391 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:51:16,524 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:51:16,527 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:51:16,540 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:51:16,551 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:51:16,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16 WrapperNode [2018-11-18 17:51:16,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:51:16,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:51:16,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:51:16,553 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:51:16,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:51:16,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:51:16,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:51:16,579 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:51:16,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:51:16,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:51:16,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:51:16,595 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:51:16,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:51:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/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 17:51:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:51:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:51:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 17:51:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 17:51:16,843 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:51:16,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:51:16 BoogieIcfgContainer [2018-11-18 17:51:16,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:51:16,843 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 17:51:16,844 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 17:51:16,851 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 17:51:16,852 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:51:16" (1/1) ... [2018-11-18 17:51:16,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:51:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:51:16,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2018-11-18 17:51:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2018-11-18 17:51:16,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:51:16,892 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:51:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:51:16,964 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 17:51:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:51:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-11-18 17:51:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-11-18 17:51:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 17:51:16,973 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:51:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:51:17,122 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 17:51:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:51:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2018-11-18 17:51:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2018-11-18 17:51:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 17:51:17,311 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:51:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:51:17,343 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 17:51:17,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:51:17,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2018-11-18 17:51:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2018-11-18 17:51:17,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:51:17,435 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:51:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:51:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:51:17,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:51:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2018-11-18 17:51:17,864 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-11-18 17:51:17,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 17:51:17,864 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:51:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:51:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 17:51:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:51:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 26 transitions. [2018-11-18 17:51:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-18 17:51:18,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 17:51:18,091 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:51:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:51:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:51:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:51:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:51:18,141 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2018-11-18 17:51:18,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 05:51:18 ImpRootNode [2018-11-18 17:51:18,165 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 17:51:18,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:51:18,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:51:18,166 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:51:18,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:51:16" (3/4) ... [2018-11-18 17:51:18,169 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 17:51:18,208 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5eeed8b1-8026-4abc-99ac-1a5879d803b4/bin-2019/ukojak/witness.graphml [2018-11-18 17:51:18,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:51:18,209 INFO L168 Benchmark]: Toolchain (without parser) took 1854.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 952.7 MB in the beginning and 968.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 145.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:51:18,210 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:51:18,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.81 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:51:18,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.50 ms. Allocated memory is still 1.0 GB. Free memory was 941.8 MB in the beginning and 939.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:51:18,211 INFO L168 Benchmark]: Boogie Preprocessor took 15.31 ms. Allocated memory is still 1.0 GB. Free memory is still 939.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:51:18,212 INFO L168 Benchmark]: RCFGBuilder took 248.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -206.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:51:18,213 INFO L168 Benchmark]: CodeCheck took 1321.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.3 MB in the end (delta: 172.9 MB). Peak memory consumption was 172.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:51:18,213 INFO L168 Benchmark]: Witness Printer took 42.54 ms. Allocated memory is still 1.2 GB. Free memory was 972.3 MB in the beginning and 968.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:51:18,217 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, 20 locations, 1 error locations. UNSAFE Result, 1.2s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 434 SDtfs, 110 SDslu, 140 SDs, 0 SdLazy, 518 SolverSat, 226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 464 GetRequests, 422 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 2984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 8/13 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int i=0, x=0, y=0; [L15] int n=__VERIFIER_nondet_int(); [L16] COND FALSE !(!(n>0)) [L17] i=0 [L17] COND TRUE i