./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-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_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/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 8d39666f7b9e3c393826226f879477647e7209cc ................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:32:53,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:32:53,859 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:32:53,867 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:32:53,867 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:32:53,868 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:32:53,869 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:32:53,870 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:32:53,871 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:32:53,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:32:53,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:32:53,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:32:53,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:32:53,874 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:32:53,875 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:32:53,875 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:32:53,876 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:32:53,877 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:32:53,878 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:32:53,879 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:32:53,880 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:32:53,881 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:32:53,882 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:32:53,882 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:32:53,883 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:32:53,883 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:32:53,884 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:32:53,884 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:32:53,885 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:32:53,886 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:32:53,886 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:32:53,886 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:32:53,886 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:32:53,887 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:32:53,887 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:32:53,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:32:53,888 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 17:32:53,898 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:32:53,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:32:53,899 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:32:53,899 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 17:32:53,900 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:32:53,900 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:32:53,900 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:32:53,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:32:53,901 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:32:53,901 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:32:53,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:32:53,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:32:53,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:32:53,901 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:32:53,902 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:32:53,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:32:53,902 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:32:53,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:32:53,902 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 17:32:53,902 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 17:32:53,903 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:32:53,903 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:32:53,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 17:32:53,903 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:32:53,903 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:32:53,903 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:32:53,904 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 17:32:53,904 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:32:53,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:32:53,904 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_0d70e678-4d46-4056-976c-6a8d6d96449c/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 -> 8d39666f7b9e3c393826226f879477647e7209cc [2018-11-18 17:32:53,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:32:53,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:32:53,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:32:53,942 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:32:53,942 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:32:53,942 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-11-18 17:32:53,988 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/data/3cbd27729/55fb3b04eb904ee686b1f2c35604c298/FLAG81d4bd8b8 [2018-11-18 17:32:54,383 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:32:54,383 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-11-18 17:32:54,387 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/data/3cbd27729/55fb3b04eb904ee686b1f2c35604c298/FLAG81d4bd8b8 [2018-11-18 17:32:54,395 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/data/3cbd27729/55fb3b04eb904ee686b1f2c35604c298 [2018-11-18 17:32:54,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:32:54,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:32:54,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:32:54,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:32:54,400 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:32:54,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649eab1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54, skipping insertion in model container [2018-11-18 17:32:54,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:32:54,422 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:32:54,542 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:32:54,544 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:32:54,553 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:32:54,563 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:32:54,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54 WrapperNode [2018-11-18 17:32:54,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:32:54,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:32:54,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:32:54,564 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:32:54,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:32:54,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:32:54,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:32:54,588 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:32:54,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:32:54,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:32:54,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:32:54,598 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:32:54,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/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 17:32:54,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:32:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:32:54,673 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-11-18 17:32:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-11-18 17:32:54,784 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:32:54,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:32:54 BoogieIcfgContainer [2018-11-18 17:32:54,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:32:54,785 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 17:32:54,785 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 17:32:54,793 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 17:32:54,793 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:32:54" (1/1) ... [2018-11-18 17:32:54,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:32:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:32:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-18 17:32:54,823 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 17:32:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 17:32:54,826 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:32:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:32:54,937 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 17:32:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:32:54,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2018-11-18 17:32:54,988 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-11-18 17:32:54,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:32:54,989 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:32:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:32:55,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:32:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:32:55,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2018-11-18 17:32:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-11-18 17:32:55,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 17:32:55,375 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:32:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:32:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 17:32:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:32:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2018-11-18 17:32:55,711 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-11-18 17:32:55,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:32:55,712 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-11-18 17:32:55,718 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 17:32:55,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 05:32:55 ImpRootNode [2018-11-18 17:32:55,753 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 17:32:55,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:32:55,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:32:55,753 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:32:55,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:32:54" (3/4) ... [2018-11-18 17:32:55,756 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:32:55,760 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-11-18 17:32:55,762 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 17:32:55,762 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:32:55,763 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 17:32:55,789 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d70e678-4d46-4056-976c-6a8d6d96449c/bin-2019/ukojak/witness.graphml [2018-11-18 17:32:55,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:32:55,790 INFO L168 Benchmark]: Toolchain (without parser) took 1392.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 952.7 MB in the beginning and 986.8 MB in the end (delta: -34.1 MB). Peak memory consumption was 118.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:55,791 INFO L168 Benchmark]: CDTParser took 0.14 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 17:32:55,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.80 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:55,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.39 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:55,792 INFO L168 Benchmark]: Boogie Preprocessor took 10.54 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:32:55,793 INFO L168 Benchmark]: RCFGBuilder took 186.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:55,793 INFO L168 Benchmark]: CodeCheck took 967.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.1 MB in the end (delta: 146.4 MB). Peak memory consumption was 146.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:55,793 INFO L168 Benchmark]: Witness Printer took 36.31 ms. Allocated memory is still 1.2 GB. Free memory was 990.1 MB in the beginning and 986.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:55,796 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, 17 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 28 SDslu, 48 SDs, 0 SdLazy, 200 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 323 GetRequests, 281 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.6s 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, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 9/18 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 - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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. * CACSL2BoogieTranslator took 165.80 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 23.39 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.54 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 186.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 967.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.1 MB in the end (delta: 146.4 MB). Peak memory consumption was 146.4 MB. Max. memory is 11.5 GB. * Witness Printer took 36.31 ms. Allocated memory is still 1.2 GB. Free memory was 990.1 MB in the beginning and 986.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...