./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_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_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/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 2797de73b923a7fbf0f091cb97be1331c2699e2c ................................................................................................................................................................................................................................................................ 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 23:26:45,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:26:45,429 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:26:45,436 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:26:45,436 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:26:45,437 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:26:45,437 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:26:45,438 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:26:45,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:26:45,440 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:26:45,440 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:26:45,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:26:45,441 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:26:45,442 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:26:45,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:26:45,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:26:45,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:26:45,445 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:26:45,446 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:26:45,447 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:26:45,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:26:45,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:26:45,450 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:26:45,450 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:26:45,450 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:26:45,451 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:26:45,452 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:26:45,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:26:45,453 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:26:45,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:26:45,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:26:45,454 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:26:45,454 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:26:45,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:26:45,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:26:45,456 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:26:45,456 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-09 23:26:45,464 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:26:45,464 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:26:45,465 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-09 23:26:45,465 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-09 23:26:45,465 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:26:45,465 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:26:45,466 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-09 23:26:45,466 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-09 23:26:45,466 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-09 23:26:45,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:26:45,467 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-09 23:26:45,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-09 23:26:45,467 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:26:45,467 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-09 23:26:45,467 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-09 23:26:45,467 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-09 23:26:45,467 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-09 23:26:45,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-09 23:26:45,467 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_e6f3080b-eac8-472e-8f9d-b0791be826fd/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 -> 2797de73b923a7fbf0f091cb97be1331c2699e2c [2018-11-09 23:26:45,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:26:45,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:26:45,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:26:45,502 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:26:45,502 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:26:45,503 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/../../sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-11-09 23:26:45,536 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/data/d11092bf4/bfea12140ec64c9d9a70d558111ce217/FLAGa723e0717 [2018-11-09 23:26:45,922 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:26:45,923 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/sv-benchmarks/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-11-09 23:26:45,927 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/data/d11092bf4/bfea12140ec64c9d9a70d558111ce217/FLAGa723e0717 [2018-11-09 23:26:45,938 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/data/d11092bf4/bfea12140ec64c9d9a70d558111ce217 [2018-11-09 23:26:45,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:26:45,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-09 23:26:45,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:26:45,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:26:45,943 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:26:45,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:26:45" (1/1) ... [2018-11-09 23:26:45,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32089edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:45, skipping insertion in model container [2018-11-09 23:26:45,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:26:45" (1/1) ... [2018-11-09 23:26:45,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:26:45,960 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:26:46,049 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:26:46,051 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:26:46,059 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:26:46,066 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:26:46,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46 WrapperNode [2018-11-09 23:26:46,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:26:46,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-09 23:26:46,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-09 23:26:46,068 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-09 23:26:46,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-09 23:26:46,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:26:46,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:26:46,086 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:26:46,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:26:46,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:26:46,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:26:46,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:26:46,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:26:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/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 23:26:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:26:46,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:26:46,318 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:26:46,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:26:46 BoogieIcfgContainer [2018-11-09 23:26:46,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:26:46,320 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-09 23:26:46,320 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-09 23:26:46,330 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-09 23:26:46,331 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:26:46" (1/1) ... [2018-11-09 23:26:46,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:26:46,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-09 23:26:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-09 23:26:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-09 23:26:46,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:46,432 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 23:26:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-09 23:26:46,438 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-09 23:26:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-09 23:26:46,438 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:46,499 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 23:26:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:46,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-11-09 23:26:46,543 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-11-09 23:26:46,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-09 23:26:46,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:46,580 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 23:26:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:46,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-09 23:26:46,668 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-09 23:26:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-09 23:26:46,669 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:46,735 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 23:26:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:46,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-09 23:26:46,807 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-09 23:26:46,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-09 23:26:46,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:46,853 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 23:26:46,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-09 23:26:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-09 23:26:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-09 23:26:46,944 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:47,000 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 23:26:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-09 23:26:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-09 23:26:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-09 23:26:47,097 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:26:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-09 23:26:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-09 23:26:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-09 23:26:47,241 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-09 23:26:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:26:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-09 23:26:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-09 23:26:47,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-09 23:26:47,683 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-09 23:26:47,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-09 23:26:47,683 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-11-09 23:26:47,689 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-09 23:26:47,753 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-09 23:26:47,755 INFO L582 CodeCheckObserver]: Invariant with dag size 14 [2018-11-09 23:26:47,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 11:26:47 ImpRootNode [2018-11-09 23:26:47,760 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-09 23:26:47,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:26:47,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:26:47,761 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:26:47,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:26:46" (3/4) ... [2018-11-09 23:26:47,764 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-09 23:26:47,771 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-09 23:26:47,771 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-09 23:26:47,772 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-09 23:26:47,799 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e6f3080b-eac8-472e-8f9d-b0791be826fd/bin-2019/ukojak/witness.graphml [2018-11-09 23:26:47,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:26:47,799 INFO L168 Benchmark]: Toolchain (without parser) took 1859.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 959.1 MB in the beginning and 964.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 176.4 MB. Max. memory is 11.5 GB. [2018-11-09 23:26:47,800 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:26:47,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.08 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-09 23:26:47,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.94 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:26:47,802 INFO L168 Benchmark]: Boogie Preprocessor took 11.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:26:47,802 INFO L168 Benchmark]: RCFGBuilder took 222.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -222.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-09 23:26:47,802 INFO L168 Benchmark]: CodeCheck took 1440.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 968.0 MB in the end (delta: 199.8 MB). Peak memory consumption was 199.8 MB. Max. memory is 11.5 GB. [2018-11-09 23:26:47,803 INFO L168 Benchmark]: Witness Printer took 38.27 ms. Allocated memory is still 1.2 GB. Free memory was 968.0 MB in the beginning and 964.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-09 23:26:47,805 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, 12 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1280 SDtfs, 510 SDslu, 760 SDs, 0 SdLazy, 1290 SolverSat, 768 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 557 GetRequests, 489 SyntacticMatches, 36 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 4595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 42/112 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: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 4294967296 * ((x + -1) / 4294967296) + 6 || (x <= 0 && 0 <= x) * 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 126.08 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.94 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 222.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -222.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * CodeCheck took 1440.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 968.0 MB in the end (delta: 199.8 MB). Peak memory consumption was 199.8 MB. Max. memory is 11.5 GB. * Witness Printer took 38.27 ms. Allocated memory is still 1.2 GB. Free memory was 968.0 MB in the beginning and 964.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...