./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/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 e655d34f6b59f7cc9a55d4dc4dc525a41685abad ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:23:40,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:23:40,916 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:23:40,925 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:23:40,926 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:23:40,927 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:23:40,928 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:23:40,929 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:23:40,931 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:23:40,931 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:23:40,932 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:23:40,932 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:23:40,933 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:23:40,933 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:23:40,935 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:23:40,935 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:23:40,936 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:23:40,937 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:23:40,939 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:23:40,941 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:23:40,941 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:23:40,943 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:23:40,944 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:23:40,944 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:23:40,944 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:23:40,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:23:40,947 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:23:40,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:23:40,948 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:23:40,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:23:40,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:23:40,949 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:23:40,949 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:23:40,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:23:40,950 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:23:40,951 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:23:40,951 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-27 00:23:40,962 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:23:40,962 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:23:40,963 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:23:40,963 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:23:40,963 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:23:40,963 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:23:40,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:23:40,964 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:23:40,964 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:23:40,964 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:23:40,964 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:23:40,964 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:23:40,964 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:23:40,965 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:23:40,965 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:23:40,965 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:23:40,965 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:23:40,965 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 00:23:40,965 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 00:23:40,965 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:23:40,966 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:23:40,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 00:23:40,968 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:23:40,968 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:23:40,968 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:23:40,968 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 00:23:40,968 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:23:40,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:23:40,969 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_6ec967b6-6856-4645-a6aa-7e9e6d8de423/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 -> e655d34f6b59f7cc9a55d4dc4dc525a41685abad [2018-10-27 00:23:41,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:23:41,010 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:23:41,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:23:41,019 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:23:41,019 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:23:41,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/../../sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i [2018-10-27 00:23:41,069 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/data/5d101aab5/0bd11695cbe34e54830f01fcdcc81eea/FLAGc9de2e6d6 [2018-10-27 00:23:41,451 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:23:41,451 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i [2018-10-27 00:23:41,457 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/data/5d101aab5/0bd11695cbe34e54830f01fcdcc81eea/FLAGc9de2e6d6 [2018-10-27 00:23:41,467 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/data/5d101aab5/0bd11695cbe34e54830f01fcdcc81eea [2018-10-27 00:23:41,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:23:41,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:23:41,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:23:41,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:23:41,476 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:23:41,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6005f6f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41, skipping insertion in model container [2018-10-27 00:23:41,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:23:41,499 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:23:41,621 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:23:41,624 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:23:41,642 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:23:41,656 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:23:41,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41 WrapperNode [2018-10-27 00:23:41,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:23:41,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:23:41,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:23:41,657 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:23:41,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:23:41,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:23:41,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:23:41,690 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:23:41,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... [2018-10-27 00:23:41,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:23:41,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:23:41,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:23:41,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:23:41,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:23:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 00:23:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 00:23:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 00:23:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:23:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:23:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 00:23:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 00:23:42,693 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:23:42,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:23:42 BoogieIcfgContainer [2018-10-27 00:23:42,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:23:42,694 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 00:23:42,694 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 00:23:42,704 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 00:23:42,704 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:23:42" (1/1) ... [2018-10-27 00:23:42,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:23:42,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2018-10-27 00:23:42,748 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2018-10-27 00:23:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 00:23:42,751 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:23:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:42,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2018-10-27 00:23:42,855 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2018-10-27 00:23:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-27 00:23:42,855 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:23:43,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:43,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-10-27 00:23:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-10-27 00:23:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:23:43,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 00:23:43,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:43,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2018-10-27 00:23:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2018-10-27 00:23:43,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 00:23:43,156 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 00:23:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2018-10-27 00:23:43,315 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2018-10-27 00:23:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 00:23:43,315 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 00:23:43,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:43,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 32 states and 42 transitions. [2018-10-27 00:23:43,458 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2018-10-27 00:23:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-27 00:23:43,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 00:23:43,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2018-10-27 00:23:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-10-27 00:23:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-27 00:23:43,605 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:43,666 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 00:23:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 45 transitions. [2018-10-27 00:23:43,849 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2018-10-27 00:23:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-27 00:23:43,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:43,907 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-27 00:23:44,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2018-10-27 00:23:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-10-27 00:23:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-27 00:23:44,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-27 00:23:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 40 states and 50 transitions. [2018-10-27 00:23:44,109 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2018-10-27 00:23:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-27 00:23:44,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-27 00:23:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 42 states and 52 transitions. [2018-10-27 00:23:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-10-27 00:23:44,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-27 00:23:44,191 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-27 00:23:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:44,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 44 states and 53 transitions. [2018-10-27 00:23:44,369 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-10-27 00:23:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-27 00:23:44,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 00:23:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:23:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-27 00:23:44,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 00:23:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 42 states and 51 transitions. [2018-10-27 00:23:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-10-27 00:23:44,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:23:44,605 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2018-10-27 00:23:44,613 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-10-27 00:23:44,646 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 00:23:44,648 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 00:23:44,648 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 00:23:44,648 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 00:23:44,648 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 00:23:44,649 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 00:23:44,649 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 00:23:44,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 12:23:44 ImpRootNode [2018-10-27 00:23:44,649 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 00:23:44,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:23:44,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:23:44,650 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:23:44,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:23:42" (3/4) ... [2018-10-27 00:23:44,653 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:23:44,663 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-10-27 00:23:44,663 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-10-27 00:23:44,663 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 00:23:44,663 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:23:44,719 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6ec967b6-6856-4645-a6aa-7e9e6d8de423/bin-2019/ukojak/witness.graphml [2018-10-27 00:23:44,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:23:44,720 INFO L168 Benchmark]: Toolchain (without parser) took 3248.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 955.8 MB in the beginning and 968.4 MB in the end (delta: -12.6 MB). Peak memory consumption was 112.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:23:44,721 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:23:44,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.65 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:23:44,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.52 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:23:44,723 INFO L168 Benchmark]: Boogie Preprocessor took 22.19 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:23:44,724 INFO L168 Benchmark]: RCFGBuilder took 981.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:23:44,724 INFO L168 Benchmark]: CodeCheck took 1954.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.9 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:23:44,724 INFO L168 Benchmark]: Witness Printer took 70.11 ms. Allocated memory is still 1.2 GB. Free memory was 971.9 MB in the beginning and 968.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:23:44,728 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, 56 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 13 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65536 SDtfs, 8184 SDslu, 10224 SDs, 0 SdLazy, 28174 SolverSat, 12894 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2237 GetRequests, 2193 SyntacticMatches, 24 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 13604 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 190/270 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: 6]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.65 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 943.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.52 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.19 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 981.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 938.3 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * CodeCheck took 1954.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.9 MB in the end (delta: 112.5 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. * Witness Printer took 70.11 ms. Allocated memory is still 1.2 GB. Free memory was 971.9 MB in the beginning and 968.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...