./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_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/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_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/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 [2018-11-10 07:04:19,476 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:04:19,477 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:04:19,483 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:04:19,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:04:19,484 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:04:19,485 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:04:19,486 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:04:19,487 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:04:19,488 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:04:19,488 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:04:19,489 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:04:19,489 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:04:19,490 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:04:19,491 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:04:19,491 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:04:19,492 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:04:19,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:04:19,495 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:04:19,496 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:04:19,496 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:04:19,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:04:19,499 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:04:19,499 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:04:19,499 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:04:19,500 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:04:19,501 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:04:19,501 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:04:19,502 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:04:19,502 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:04:19,503 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:04:19,503 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:04:19,503 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:04:19,503 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:04:19,504 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:04:19,505 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:04:19,505 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 07:04:19,514 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:04:19,514 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:04:19,515 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:04:19,515 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:04:19,516 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:04:19,516 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:04:19,516 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:04:19,516 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:04:19,516 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:04:19,516 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:04:19,517 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:04:19,517 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:04:19,517 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:04:19,517 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:04:19,517 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:04:19,517 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:04:19,517 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:04:19,518 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 07:04:19,518 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 07:04:19,518 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:04:19,518 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:04:19,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 07:04:19,518 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:04:19,519 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:04:19,519 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:04:19,519 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 07:04:19,519 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:04:19,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:04:19,519 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_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/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 [2018-11-10 07:04:19,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:04:19,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:04:19,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:04:19,555 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:04:19,555 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:04:19,556 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/../../sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i [2018-11-10 07:04:19,590 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/data/02d1aecd2/850e13ee557b48d8861d759798512114/FLAG65d5b14f1 [2018-11-10 07:04:19,898 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:04:19,898 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/sv-benchmarks/c/loops/string_true-unreach-call_true-termination.i [2018-11-10 07:04:19,902 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/data/02d1aecd2/850e13ee557b48d8861d759798512114/FLAG65d5b14f1 [2018-11-10 07:04:19,914 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/data/02d1aecd2/850e13ee557b48d8861d759798512114 [2018-11-10 07:04:19,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:04:19,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:04:19,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:04:19,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:04:19,923 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:04:19,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:04:19" (1/1) ... [2018-11-10 07:04:19,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10835ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:19, skipping insertion in model container [2018-11-10 07:04:19,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:04:19" (1/1) ... [2018-11-10 07:04:19,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:04:19,952 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:04:20,062 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:04:20,064 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:04:20,077 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:04:20,088 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:04:20,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20 WrapperNode [2018-11-10 07:04:20,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:04:20,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:04:20,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:04:20,089 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:04:20,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:04:20,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:04:20,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:04:20,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:04:20,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:04:20,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:04:20,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:04:20,138 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:04:20,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:04:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/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 [2018-11-10 07:04:20,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 07:04:20,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 07:04:20,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:04:20,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:04:20,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 07:04:20,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 07:04:20,530 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:04:20,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:04:20 BoogieIcfgContainer [2018-11-10 07:04:20,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:04:20,531 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 07:04:20,531 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 07:04:20,540 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 07:04:20,540 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:04:20" (1/1) ... [2018-11-10 07:04:20,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:04:20,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2018-11-10 07:04:20,576 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2018-11-10 07:04:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 07:04:20,577 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:20,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:04:20,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:20,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2018-11-10 07:04:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2018-11-10 07:04:20,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 07:04:20,664 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:04:20,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-11-10 07:04:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-11-10 07:04:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:04:20,727 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:04:20,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2018-11-10 07:04:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2018-11-10 07:04:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 07:04:20,774 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:20,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:04:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:20,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2018-11-10 07:04:20,866 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2018-11-10 07:04:20,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 07:04:20,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:04:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 32 states and 42 transitions. [2018-11-10 07:04:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2018-11-10 07:04:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 07:04:20,934 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:04:21,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2018-11-10 07:04:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-11-10 07:04:21,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 07:04:21,017 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:04:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 45 transitions. [2018-11-10 07:04:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2018-11-10 07:04:21,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 07:04:21,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-10 07:04:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2018-11-10 07:04:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-11-10 07:04:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 07:04:21,154 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-10 07:04:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 40 states and 50 transitions. [2018-11-10 07:04:21,201 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2018-11-10 07:04:21,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 07:04:21,201 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:21,225 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-10 07:04:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:21,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 42 states and 52 transitions. [2018-11-10 07:04:21,253 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-11-10 07:04:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 07:04:21,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-10 07:04:21,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 44 states and 53 transitions. [2018-11-10 07:04:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-10 07:04:21,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-10 07:04:21,309 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:04:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:04:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-11-10 07:04:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:04:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 42 states and 51 transitions. [2018-11-10 07:04:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-11-10 07:04:21,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:04:21,388 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2018-11-10 07:04:21,395 INFO L778 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-10 07:04:21,415 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:04:21,419 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:04:21,419 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:04:21,419 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:04:21,419 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:04:21,419 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:04:21,419 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-11-10 07:04:21,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 07:04:21 ImpRootNode [2018-11-10 07:04:21,420 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 07:04:21,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:04:21,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:04:21,420 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:04:21,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:04:20" (3/4) ... [2018-11-10 07:04:21,423 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:04:21,431 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-11-10 07:04:21,432 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 07:04:21,432 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 07:04:21,432 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:04:21,471 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_67ac5bd2-afb7-4f10-a21c-13b06c7bde26/bin-2019/ukojak/witness.graphml [2018-11-10 07:04:21,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:04:21,472 INFO L168 Benchmark]: Toolchain (without parser) took 1554.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 960.3 MB in the beginning and 975.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 122.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:04:21,473 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:04:21,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.89 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:04:21,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:04:21,474 INFO L168 Benchmark]: Boogie Preprocessor took 20.06 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:04:21,474 INFO L168 Benchmark]: RCFGBuilder took 393.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-10 07:04:21,474 INFO L168 Benchmark]: CodeCheck took 888.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.7 MB in the end (delta: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:04:21,475 INFO L168 Benchmark]: Witness Printer took 50.83 ms. Allocated memory is still 1.2 GB. Free memory was 977.7 MB in the beginning and 975.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:04:21,477 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, 0.8s 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, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2237 GetRequests, 2193 SyntacticMatches, 24 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s 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 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.89 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.06 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 393.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * CodeCheck took 888.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.7 MB in the end (delta: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.83 ms. Allocated memory is still 1.2 GB. Free memory was 977.7 MB in the beginning and 975.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...