./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/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 fffaea79f968c931abbf923bf574b15b9c605c6a .......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:19:57,393 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:19:57,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:19:57,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:19:57,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:19:57,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:19:57,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:19:57,402 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:19:57,403 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:19:57,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:19:57,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:19:57,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:19:57,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:19:57,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:19:57,405 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:19:57,405 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:19:57,406 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:19:57,407 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:19:57,408 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:19:57,408 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:19:57,409 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:19:57,409 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:19:57,410 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:19:57,411 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:19:57,411 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:19:57,411 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:19:57,412 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:19:57,412 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:19:57,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:19:57,413 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:19:57,413 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:19:57,413 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:19:57,414 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:19:57,414 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:19:57,414 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:19:57,414 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:19:57,415 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-09 16:19:57,422 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:19:57,422 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:19:57,422 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:19:57,422 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-09 16:19:57,423 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 16:19:57,423 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 16:19:57,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:19:57,423 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:19:57,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:19:57,423 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:19:57,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:19:57,424 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 16:19:57,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:19:57,424 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:19:57,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 16:19:57,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:19:57,425 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:19:57,425 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:19:57,425 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 16:19:57,425 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:19:57,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:19:57,425 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_e78b0e6b-614c-4cb4-845c-576670219f3d/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 -> fffaea79f968c931abbf923bf574b15b9c605c6a [2018-12-09 16:19:57,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:19:57,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:19:57,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:19:57,455 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:19:57,456 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:19:57,456 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i [2018-12-09 16:19:57,498 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/data/a81ac4ea1/9bcb813017dc429dbe85a480e9811e41/FLAG555a42271 [2018-12-09 16:19:57,923 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:19:57,923 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i [2018-12-09 16:19:57,927 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/data/a81ac4ea1/9bcb813017dc429dbe85a480e9811e41/FLAG555a42271 [2018-12-09 16:19:57,935 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/data/a81ac4ea1/9bcb813017dc429dbe85a480e9811e41 [2018-12-09 16:19:57,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:19:57,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:19:57,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:19:57,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:19:57,940 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:19:57,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:19:57" (1/1) ... [2018-12-09 16:19:57,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:57, skipping insertion in model container [2018-12-09 16:19:57,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:19:57" (1/1) ... [2018-12-09 16:19:57,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:19:57,955 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:19:58,041 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:19:58,053 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:19:58,063 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:19:58,076 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:19:58,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58 WrapperNode [2018-12-09 16:19:58,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:19:58,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:19:58,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:19:58,077 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:19:58,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:19:58,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:19:58,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:19:58,097 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:19:58,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:19:58,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:19:58,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:19:58,138 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:19:58,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:19:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/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 [2018-12-09 16:19:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 16:19:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 16:19:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:19:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:19:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 16:19:58,279 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:19:58,279 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 16:19:58,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:19:58 BoogieIcfgContainer [2018-12-09 16:19:58,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:19:58,279 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 16:19:58,280 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 16:19:58,286 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 16:19:58,286 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:19:58" (1/1) ... [2018-12-09 16:19:58,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:19:58,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:19:58,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2018-12-09 16:19:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2018-12-09 16:19:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 16:19:58,314 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:19:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:19:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:19:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:19:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-12-09 16:19:58,385 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-09 16:19:58,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 16:19:58,385 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:19:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:19:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:19:58,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:19:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2018-12-09 16:19:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2018-12-09 16:19:58,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 16:19:58,502 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 16:19:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:19:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:19:58,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 16:19:58,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-09 16:19:58,702 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-09 16:19:58,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 16:19:58,702 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-12-09 16:19:58,708 INFO L779 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-12-09 16:19:58,738 INFO L583 CodeCheckObserver]: Invariant with dag size 19 [2018-12-09 16:19:58,741 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:19:58,741 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:19:58,745 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:19:58,745 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:19:58,745 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 16:19:58,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 04:19:58 ImpRootNode [2018-12-09 16:19:58,746 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 16:19:58,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:19:58,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:19:58,746 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:19:58,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:19:58" (3/4) ... [2018-12-09 16:19:58,749 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 16:19:58,755 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 16:19:58,755 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 16:19:58,755 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 16:19:58,781 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e78b0e6b-614c-4cb4-845c-576670219f3d/bin-2019/ukojak/witness.graphml [2018-12-09 16:19:58,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:19:58,782 INFO L168 Benchmark]: Toolchain (without parser) took 844.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -77.3 MB). Peak memory consumption was 65.9 MB. Max. memory is 11.5 GB. [2018-12-09 16:19:58,783 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:19:58,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.00 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 16:19:58,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.37 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 16:19:58,783 INFO L168 Benchmark]: Boogie Preprocessor took 41.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-09 16:19:58,784 INFO L168 Benchmark]: RCFGBuilder took 141.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-12-09 16:19:58,784 INFO L168 Benchmark]: CodeCheck took 466.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2018-12-09 16:19:58,784 INFO L168 Benchmark]: Witness Printer took 35.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:19:58,786 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, 0.4s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 18 SDslu, 8 SDs, 0 SdLazy, 120 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 696 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 18]: Loop Invariant [2018-12-09 16:19:58,787 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:19:58,787 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:19:58,788 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 16:19:58,788 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (k == i || unknown-#memory_int-unknown[y][y + k] == 0) && 0 == unknown-#memory_int-unknown[x][x + i] - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.00 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 950.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.37 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -189.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 141.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * CodeCheck took 466.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.6 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int RESULT: Ultimate proved your program to be correct! Received shutdown request...