./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/n.c11_true-unreach-call_false-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_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/n.c11_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/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 24b22c477e8a47eac290a2fc1c5b1e1aaa3a4fa4 ................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:44:10,826 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:44:10,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:44:10,836 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:44:10,836 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:44:10,837 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:44:10,838 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:44:10,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:44:10,840 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:44:10,841 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:44:10,841 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:44:10,841 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:44:10,842 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:44:10,843 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:44:10,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:44:10,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:44:10,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:44:10,846 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:44:10,847 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:44:10,848 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:44:10,849 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:44:10,850 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:44:10,851 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:44:10,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:44:10,852 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:44:10,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:44:10,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:44:10,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:44:10,854 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:44:10,855 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:44:10,855 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:44:10,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:44:10,856 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:44:10,856 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:44:10,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:44:10,857 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:44:10,857 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-09 23:44:10,868 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:44:10,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:44:10,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 23:44:10,869 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 23:44:10,869 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:44:10,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:44:10,870 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:44:10,870 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 23:44:10,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:44:10,871 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 23:44:10,871 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:44:10,871 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 23:44:10,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 23:44:10,871 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 23:44:10,871 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 23:44:10,871 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:44:10,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 23:44:10,872 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-09 23:44:10,872 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-09 23:44:10,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:44:10,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 23:44:10,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-09 23:44:10,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:44:10,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 23:44:10,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 23:44:10,873 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-09 23:44:10,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 23:44:10,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 23:44:10,873 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_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/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 -> 24b22c477e8a47eac290a2fc1c5b1e1aaa3a4fa4 [2018-11-09 23:44:10,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:44:10,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:44:10,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:44:10,913 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:44:10,913 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:44:10,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/../../sv-benchmarks/c/loops/n.c11_true-unreach-call_false-termination.i [2018-11-09 23:44:10,949 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/data/a325291f7/15caf44562394166a0a558cc221be2fe/FLAGb16f43b68 [2018-11-09 23:44:11,339 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:44:11,339 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/sv-benchmarks/c/loops/n.c11_true-unreach-call_false-termination.i [2018-11-09 23:44:11,344 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/data/a325291f7/15caf44562394166a0a558cc221be2fe/FLAGb16f43b68 [2018-11-09 23:44:11,353 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/data/a325291f7/15caf44562394166a0a558cc221be2fe [2018-11-09 23:44:11,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:44:11,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-09 23:44:11,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:44:11,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:44:11,359 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:44:11,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3b985d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11, skipping insertion in model container [2018-11-09 23:44:11,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:44:11,378 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:44:11,472 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:44:11,474 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:44:11,483 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:44:11,491 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:44:11,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11 WrapperNode [2018-11-09 23:44:11,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:44:11,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-09 23:44:11,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-09 23:44:11,492 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-09 23:44:11,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-09 23:44:11,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:44:11,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:44:11,512 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:44:11,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:44:11,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:44:11,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:44:11,523 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:44:11,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:44:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/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 [2018-11-09 23:44:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:44:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:44:11,735 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:44:11,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:44:11 BoogieIcfgContainer [2018-11-09 23:44:11,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:44:11,736 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-09 23:44:11,736 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-09 23:44:11,745 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-09 23:44:11,745 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:44:11" (1/1) ... [2018-11-09 23:44:11,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:44:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:44:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-09 23:44:11,791 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-09 23:44:11,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-09 23:44:11,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:44:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:44:11,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:44:11,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:44:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-09 23:44:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-09 23:44:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-09 23:44:11,873 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:44:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:44:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:44:11,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:44:11,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-11-09 23:44:11,995 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-11-09 23:44:11,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-09 23:44:11,995 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:44:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:44:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:44:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:44:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2018-11-09 23:44:12,137 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2018-11-09 23:44:12,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-09 23:44:12,139 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:44:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:44:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:44:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:44:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-11-09 23:44:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-11-09 23:44:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-09 23:44:12,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:44:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:44:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:44:12,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:44:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2018-11-09 23:44:12,572 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2018-11-09 23:44:12,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-09 23:44:12,573 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:44:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:44:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:44:12,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:44:12,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2018-11-09 23:44:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-11-09 23:44:12,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 23:44:12,838 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2018-11-09 23:44:12,844 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-09 23:44:12,886 INFO L582 CodeCheckObserver]: Invariant with dag size 22 [2018-11-09 23:44:12,895 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-09 23:44:12,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 11:44:12 ImpRootNode [2018-11-09 23:44:12,895 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-09 23:44:12,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:44:12,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:44:12,896 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:44:12,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:44:11" (3/4) ... [2018-11-09 23:44:12,900 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 23:44:12,907 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-09 23:44:12,908 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-09 23:44:12,908 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-09 23:44:12,937 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_450c07f1-e0ed-4c3e-8f64-d0a827dc54bc/bin-2019/ukojak/witness.graphml [2018-11-09 23:44:12,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:44:12,938 INFO L168 Benchmark]: Toolchain (without parser) took 1583.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 958.5 MB in the beginning and 936.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 133.1 MB. Max. memory is 11.5 GB. [2018-11-09 23:44:12,939 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:44:12,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.82 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:44:12,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.05 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:44:12,940 INFO L168 Benchmark]: Boogie Preprocessor took 11.27 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:44:12,941 INFO L168 Benchmark]: RCFGBuilder took 212.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-09 23:44:12,941 INFO L168 Benchmark]: CodeCheck took 1159.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.5 MB in the end (delta: 153.3 MB). Peak memory consumption was 153.3 MB. Max. memory is 11.5 GB. [2018-11-09 23:44:12,942 INFO L168 Benchmark]: Witness Printer took 41.65 ms. Allocated memory is still 1.1 GB. Free memory is still 936.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:44:12,944 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 1 procedures, 14 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 7 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 384 SDtfs, 248 SDslu, 368 SDs, 0 SdLazy, 734 SolverSat, 262 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 390 SyntacticMatches, 21 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 3880 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/40 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: 4]: 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: 13]: Loop Invariant Derived loop invariant: ((((3 <= len && len <= 3) || (len <= 4 && 4 <= len)) || (1 <= len && len <= 1)) || (2 <= len && len <= 2)) || (0 <= len && len <= 0) - InvariantResult [Line: 2]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.82 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.05 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.27 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 212.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 1159.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.5 MB in the end (delta: 153.3 MB). Peak memory consumption was 153.3 MB. Max. memory is 11.5 GB. * Witness Printer took 41.65 ms. Allocated memory is still 1.1 GB. Free memory is still 936.0 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...