./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i --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_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/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 934ee9c856a834ce808d29dea79c6912619f897f ....................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:12:49,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:12:49,916 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:12:49,925 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:12:49,925 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:12:49,926 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:12:49,927 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:12:49,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:12:49,929 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:12:49,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:12:49,930 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:12:49,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:12:49,930 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:12:49,931 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:12:49,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:12:49,933 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:12:49,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:12:49,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:12:49,939 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:12:49,940 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:12:49,941 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:12:49,942 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:12:49,955 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:12:49,956 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:12:49,956 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:12:49,957 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:12:49,957 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:12:49,958 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:12:49,959 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:12:49,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:12:49,960 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:12:49,960 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:12:49,960 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:12:49,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:12:49,961 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:12:49,962 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:12:49,962 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-26 23:12:49,978 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:12:49,978 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:12:49,983 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:12:49,983 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 23:12:49,983 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 23:12:49,984 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 23:12:49,984 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:12:49,984 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:12:49,984 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:12:49,984 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:12:49,984 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:12:49,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:12:49,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:12:49,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:12:49,985 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:12:49,985 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:12:49,985 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:12:49,985 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-26 23:12:49,986 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-26 23:12:49,986 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:12:49,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:12:49,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-26 23:12:49,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:12:49,986 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:12:49,986 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:12:49,987 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-26 23:12:49,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:12:49,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:12:49,988 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_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/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 -> 934ee9c856a834ce808d29dea79c6912619f897f [2018-10-26 23:12:50,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:12:50,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:12:50,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:12:50,029 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:12:50,029 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:12:50,030 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/../../sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i [2018-10-26 23:12:50,076 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/data/65f01c416/31175f432a3a4a7b800769c5df1df45f/FLAG9b98001fe [2018-10-26 23:12:50,413 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:12:50,413 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/sv-benchmarks/c/loop-invgen/nested6_true-unreach-call_true-termination.i [2018-10-26 23:12:50,418 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/data/65f01c416/31175f432a3a4a7b800769c5df1df45f/FLAG9b98001fe [2018-10-26 23:12:50,431 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/data/65f01c416/31175f432a3a4a7b800769c5df1df45f [2018-10-26 23:12:50,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:12:50,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:12:50,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:12:50,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:12:50,442 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:12:50,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf30996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50, skipping insertion in model container [2018-10-26 23:12:50,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:12:50,471 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:12:50,596 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:12:50,598 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:12:50,611 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:12:50,623 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:12:50,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50 WrapperNode [2018-10-26 23:12:50,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:12:50,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:12:50,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:12:50,624 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:12:50,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:12:50,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:12:50,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:12:50,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:12:50,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... [2018-10-26 23:12:50,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:12:50,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:12:50,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:12:50,673 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:12:50,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/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 [2018-10-26 23:12:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:12:50,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:12:50,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:12:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:12:51,330 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:12:51,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:12:51 BoogieIcfgContainer [2018-10-26 23:12:51,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:12:51,331 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-26 23:12:51,331 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-26 23:12:51,341 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-26 23:12:51,341 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:12:51" (1/1) ... [2018-10-26 23:12:51,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:12:51,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:51,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2018-10-26 23:12:51,391 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-10-26 23:12:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 23:12:51,393 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2018-10-26 23:12:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2018-10-26 23:12:51,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 23:12:51,834 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:52,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 39 states and 60 transitions. [2018-10-26 23:12:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2018-10-26 23:12:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 23:12:52,303 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:53,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:53,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2018-10-26 23:12:53,269 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2018-10-26 23:12:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 23:12:53,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:53,295 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 23:12:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 47 states and 70 transitions. [2018-10-26 23:12:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2018-10-26 23:12:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:12:53,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:53,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 48 states and 71 transitions. [2018-10-26 23:12:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions. [2018-10-26 23:12:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 23:12:53,415 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:53,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:53,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 54 states and 82 transitions. [2018-10-26 23:12:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 82 transitions. [2018-10-26 23:12:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:12:53,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:53,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 54 states and 81 transitions. [2018-10-26 23:12:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 81 transitions. [2018-10-26 23:12:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 23:12:53,998 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:54,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-26 23:12:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 46 states and 67 transitions. [2018-10-26 23:12:54,082 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2018-10-26 23:12:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 23:12:54,083 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-26 23:12:54,317 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-10-26 23:12:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 49 states and 76 transitions. [2018-10-26 23:12:54,430 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2018-10-26 23:12:54,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 23:12:54,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 23:12:55,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:55,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 40 states and 56 transitions. [2018-10-26 23:12:55,030 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2018-10-26 23:12:55,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 23:12:55,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 23:12:55,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:55,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 41 states and 57 transitions. [2018-10-26 23:12:55,219 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2018-10-26 23:12:55,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 23:12:55,220 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-26 23:12:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 43 states and 59 transitions. [2018-10-26 23:12:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2018-10-26 23:12:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-26 23:12:55,437 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-26 23:12:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-26 23:12:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-26 23:12:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 29 states and 39 transitions. [2018-10-26 23:12:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2018-10-26 23:12:55,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:12:55,509 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2018-10-26 23:12:55,516 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-26 23:12:55,602 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:12:55,604 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:12:55,604 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:12:55,604 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:12:55,604 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-26 23:12:55,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.10 11:12:55 ImpRootNode [2018-10-26 23:12:55,605 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-26 23:12:55,605 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:12:55,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:12:55,605 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:12:55,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:12:51" (3/4) ... [2018-10-26 23:12:55,610 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:12:55,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:12:55,620 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-26 23:12:55,621 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:12:55,621 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 23:12:55,665 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8464b166-f2ef-4f41-bb1e-66e0627c9dd3/bin-2019/ukojak/witness.graphml [2018-10-26 23:12:55,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:12:55,666 INFO L168 Benchmark]: Toolchain (without parser) took 5231.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 955.8 MB in the beginning and 922.3 MB in the end (delta: 33.5 MB). Peak memory consumption was 172.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:55,667 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:12:55,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.74 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:55,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.08 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:12:55,668 INFO L168 Benchmark]: Boogie Preprocessor took 19.30 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:55,669 INFO L168 Benchmark]: RCFGBuilder took 657.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:55,669 INFO L168 Benchmark]: CodeCheck took 4273.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.8 MB in the end (delta: 198.3 MB). Peak memory consumption was 198.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:55,670 INFO L168 Benchmark]: Witness Printer took 60.64 ms. Allocated memory is still 1.2 GB. Free memory was 925.8 MB in the beginning and 922.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:55,674 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, 28 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 14 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98304 SDtfs, 113918 SDslu, 118002 SDs, 0 SdLazy, 331180 SolverSat, 90076 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2515 GetRequests, 2356 SyntacticMatches, 85 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 21911 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 73/119 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: 5]: 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 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.74 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.0 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 29.08 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.30 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 657.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * CodeCheck took 4273.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.8 MB in the end (delta: 198.3 MB). Peak memory consumption was 198.3 MB. Max. memory is 11.5 GB. * Witness Printer took 60.64 ms. Allocated memory is still 1.2 GB. Free memory was 925.8 MB in the beginning and 922.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...