./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a42c021ebd0de645918b065980a1f8d912cba85d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 11:56:12,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:56:12,383 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:56:12,389 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:56:12,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:56:12,390 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:56:12,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:56:12,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:56:12,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:56:12,393 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:56:12,393 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:56:12,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:56:12,394 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:56:12,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:56:12,395 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:56:12,395 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:56:12,396 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:56:12,397 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:56:12,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:56:12,399 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:56:12,400 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:56:12,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:56:12,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:56:12,402 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:56:12,402 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:56:12,402 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:56:12,403 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:56:12,403 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:56:12,404 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:56:12,404 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:56:12,405 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:56:12,405 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:56:12,405 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:56:12,405 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:56:12,406 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:56:12,406 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:56:12,406 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-08 11:56:12,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:56:12,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:56:12,415 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:56:12,415 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:56:12,415 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:56:12,415 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:56:12,415 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 11:56:12,415 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:56:12,416 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:56:12,417 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 11:56:12,417 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 11:56:12,417 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:56:12,417 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:56:12,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 11:56:12,417 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:56:12,417 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:56:12,417 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 11:56:12,418 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:56:12,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_f9222c54-46df-4215-9374-8ff57852773f/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> a42c021ebd0de645918b065980a1f8d912cba85d [2018-12-08 11:56:12,435 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:56:12,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:56:12,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:56:12,445 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:56:12,445 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:56:12,445 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-12-08 11:56:12,487 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/data/9b1791859/6513718b1e3740339ba5ad447fb31eb0/FLAGa51064822 [2018-12-08 11:56:12,919 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:56:12,920 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/sv-benchmarks/c/array-memsafety/cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-12-08 11:56:12,926 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/data/9b1791859/6513718b1e3740339ba5ad447fb31eb0/FLAGa51064822 [2018-12-08 11:56:12,934 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/data/9b1791859/6513718b1e3740339ba5ad447fb31eb0 [2018-12-08 11:56:12,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:56:12,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:56:12,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:56:12,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:56:12,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:56:12,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:56:12" (1/1) ... [2018-12-08 11:56:12,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bbed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:12, skipping insertion in model container [2018-12-08 11:56:12,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:56:12" (1/1) ... [2018-12-08 11:56:12,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:56:12,962 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:56:13,100 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:56:13,106 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:56:13,162 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:56:13,181 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:56:13,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13 WrapperNode [2018-12-08 11:56:13,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:56:13,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:56:13,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:56:13,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:56:13,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:56:13,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:56:13,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:56:13,207 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:56:13,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:56:13,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:56:13,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:56:13,222 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:56:13,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:56:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/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 [2018-12-08 11:56:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:56:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 11:56:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 11:56:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 11:56:13,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:56:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:56:13,466 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:56:13,467 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 11:56:13,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:56:13 BoogieIcfgContainer [2018-12-08 11:56:13,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:56:13,467 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 11:56:13,467 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 11:56:13,474 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 11:56:13,474 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:56:13" (1/1) ... [2018-12-08 11:56:13,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:56:13,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2018-12-08 11:56:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-12-08 11:56:13,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 11:56:13,503 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2018-12-08 11:56:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-12-08 11:56:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 11:56:13,610 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:13,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:13,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2018-12-08 11:56:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-12-08 11:56:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-08 11:56:13,705 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:13,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:13,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2018-12-08 11:56:13,771 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2018-12-08 11:56:13,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-08 11:56:13,771 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:14,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2018-12-08 11:56:14,007 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2018-12-08 11:56:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 11:56:14,007 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2018-12-08 11:56:14,257 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-12-08 11:56:14,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 11:56:14,259 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2018-12-08 11:56:14,854 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-12-08 11:56:14,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 11:56:14,855 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:14,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:15,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2018-12-08 11:56:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2018-12-08 11:56:15,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 11:56:15,821 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:56:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2018-12-08 11:56:16,190 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2018-12-08 11:56:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 11:56:16,191 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2018-12-08 11:56:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-08 11:56:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 11:56:20,494 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:21,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 43 states and 63 transitions. [2018-12-08 11:56:21,632 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 63 transitions. [2018-12-08 11:56:21,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 11:56:21,632 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:23,179 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2018-12-08 11:56:26,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 49 states and 80 transitions. [2018-12-08 11:56:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 80 transitions. [2018-12-08 11:56:26,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 11:56:26,418 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:26,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:56:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 56 states and 100 transitions. [2018-12-08 11:56:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 100 transitions. [2018-12-08 11:56:29,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 11:56:29,799 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:31,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 58 states and 113 transitions. [2018-12-08 11:56:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 113 transitions. [2018-12-08 11:56:31,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 11:56:31,174 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:32,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:32,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 60 states and 117 transitions. [2018-12-08 11:56:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 117 transitions. [2018-12-08 11:56:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 11:56:32,003 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:32,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:32,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 62 states and 123 transitions. [2018-12-08 11:56:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 123 transitions. [2018-12-08 11:56:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 11:56:32,860 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 11:56:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 62 states and 122 transitions. [2018-12-08 11:56:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 122 transitions. [2018-12-08 11:56:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 11:56:34,108 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 69 states and 143 transitions. [2018-12-08 11:56:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 143 transitions. [2018-12-08 11:56:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 11:56:41,524 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 11:56:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:42,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 69 states and 142 transitions. [2018-12-08 11:56:42,641 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 142 transitions. [2018-12-08 11:56:42,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 11:56:42,643 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:56:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:56:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 75 states and 163 transitions. [2018-12-08 11:56:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 163 transitions. [2018-12-08 11:56:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 11:56:54,032 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:56:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:56:54,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 11:57:02,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 82 states and 184 transitions. [2018-12-08 11:57:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 184 transitions. [2018-12-08 11:57:02,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 11:57:02,351 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:57:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 85 states and 197 transitions. [2018-12-08 11:57:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 197 transitions. [2018-12-08 11:57:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 11:57:13,089 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 11:57:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 87 states and 202 transitions. [2018-12-08 11:57:14,985 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 202 transitions. [2018-12-08 11:57:14,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 11:57:14,985 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:15,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 11:57:15,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:15,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 88 states and 205 transitions. [2018-12-08 11:57:15,851 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 205 transitions. [2018-12-08 11:57:15,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:57:15,851 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:57:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 88 states and 204 transitions. [2018-12-08 11:57:22,252 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 204 transitions. [2018-12-08 11:57:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 11:57:22,252 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:57:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:30,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 89 states and 207 transitions. [2018-12-08 11:57:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 207 transitions. [2018-12-08 11:57:30,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 11:57:30,082 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:57:35,875 WARN L180 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2018-12-08 11:57:37,524 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-12-08 11:57:48,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:48,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 99 states and 250 transitions. [2018-12-08 11:57:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 250 transitions. [2018-12-08 11:57:48,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 11:57:48,678 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 11:57:50,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:50,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 100 states and 258 transitions. [2018-12-08 11:57:50,249 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 258 transitions. [2018-12-08 11:57:50,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:57:50,249 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 11:57:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:57:51,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 101 states and 263 transitions. [2018-12-08 11:57:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 263 transitions. [2018-12-08 11:57:51,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:57:51,436 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:57:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:57:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:58:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 104 states and 279 transitions. [2018-12-08 11:58:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 279 transitions. [2018-12-08 11:58:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:58:02,434 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:02,729 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:58:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:03,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 105 states and 290 transitions. [2018-12-08 11:58:03,827 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 290 transitions. [2018-12-08 11:58:03,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:58:03,828 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 11:58:05,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 106 states and 293 transitions. [2018-12-08 11:58:05,896 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 293 transitions. [2018-12-08 11:58:05,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:58:05,896 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-08 11:58:09,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 108 states and 298 transitions. [2018-12-08 11:58:09,252 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 298 transitions. [2018-12-08 11:58:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:58:09,253 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 11:58:10,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:10,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 109 states and 303 transitions. [2018-12-08 11:58:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 303 transitions. [2018-12-08 11:58:10,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:58:10,695 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-08 11:58:13,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 110 states and 307 transitions. [2018-12-08 11:58:13,836 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 307 transitions. [2018-12-08 11:58:13,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 11:58:13,836 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:20,394 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:58:29,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:29,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 111 states and 313 transitions. [2018-12-08 11:58:29,819 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 313 transitions. [2018-12-08 11:58:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 11:58:29,821 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:58:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 116 states and 338 transitions. [2018-12-08 11:58:37,345 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 338 transitions. [2018-12-08 11:58:37,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-08 11:58:37,346 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:37,578 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:58:39,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 117 states and 347 transitions. [2018-12-08 11:58:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 347 transitions. [2018-12-08 11:58:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:58:39,136 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:39,893 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-12-08 11:58:40,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:40,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 118 states and 348 transitions. [2018-12-08 11:58:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 348 transitions. [2018-12-08 11:58:40,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:58:40,953 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-12-08 11:58:43,110 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2018-12-08 11:58:44,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:44,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 120 states and 352 transitions. [2018-12-08 11:58:44,689 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 352 transitions. [2018-12-08 11:58:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:58:44,689 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-12-08 11:58:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 121 states and 355 transitions. [2018-12-08 11:58:46,410 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 355 transitions. [2018-12-08 11:58:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 11:58:46,410 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:58:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:58:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-08 11:58:50,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:58:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2018-12-08 11:58:50,835 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2018-12-08 11:58:50,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 11:58:50,835 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 42 iterations. [2018-12-08 11:58:50,841 INFO L779 CodeCheckObserver]: All specifications hold 9 specifications checked. All of them hold [2018-12-08 11:58:50,970 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2018-12-08 11:58:51,208 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2018-12-08 11:58:51,375 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-12-08 11:58:51,376 INFO L583 CodeCheckObserver]: Invariant with dag size 24 [2018-12-08 11:58:51,379 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,380 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,380 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,383 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,383 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,384 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,384 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-08 11:58:51,384 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,384 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,385 INFO L583 CodeCheckObserver]: Invariant with dag size 56 [2018-12-08 11:58:51,386 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,386 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,386 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,386 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,387 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,388 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,388 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,388 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,388 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,388 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,388 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,390 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,391 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,392 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,392 INFO L583 CodeCheckObserver]: Invariant with dag size 8 [2018-12-08 11:58:51,392 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,392 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 11:58:51 ImpRootNode [2018-12-08 11:58:51,393 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 11:58:51,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:58:51,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:58:51,393 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:58:51,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:56:13" (3/4) ... [2018-12-08 11:58:51,396 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 11:58:51,401 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-08 11:58:51,401 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 11:58:51,402 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 11:58:51,419 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((1 == \valid[dst] && unknown-#length-unknown[dst] <= n) && 1 <= n) && 0 == src) && 0 <= dst) && 1 <= unknown-#length-unknown[src]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && 0 == unknown-#memory_int-unknown[src][unknown-#length-unknown[src] + -1]) && !(dst == src)) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && n + dst <= unknown-#length-unknown[dst]) && 1 == \valid[src]) || (((((((((((unknown-#length-unknown[dst] <= n + dst && 1 == \valid[dst]) && 1 <= dst) && src + 1 <= unknown-#length-unknown[src]) && (src + 2 <= unknown-#length-unknown[src] || src <= 1)) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && 0 == unknown-#memory_int-unknown[src][unknown-#length-unknown[src] + -1]) && !(dst == src)) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && n + dst <= unknown-#length-unknown[dst]) && 1 <= src) && 1 == \valid[src])) || (((((((((unknown-#length-unknown[dst] <= n + dst && 2 <= dst) && 1 == \valid[dst]) && !(unknown-#length-unknown[src] <= src || src <= 1)) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && 0 == unknown-#memory_int-unknown[src][unknown-#length-unknown[src] + -1]) && !(dst == src)) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && n + dst <= unknown-#length-unknown[dst]) && 1 == \valid[src]) [2018-12-08 11:58:51,419 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0] [2018-12-08 11:58:51,419 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-08 11:58:51,419 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == \valid[us] && 1 <= us) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && 0 <= n2) && unknown-#length-unknown[us] <= us + n2) && us + n2 <= unknown-#length-unknown[us] [2018-12-08 11:58:51,430 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f9222c54-46df-4215-9374-8ff57852773f/bin-2019/ukojak/witness.graphml [2018-12-08 11:58:51,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:58:51,431 INFO L168 Benchmark]: Toolchain (without parser) took 158494.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 957.1 MB in the beginning and 917.7 MB in the end (delta: 39.4 MB). Peak memory consumption was 197.2 MB. Max. memory is 11.5 GB. [2018-12-08 11:58:51,431 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-08 11:58:51,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-08 11:58:51,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:58:51,432 INFO L168 Benchmark]: Boogie Preprocessor took 15.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:58:51,432 INFO L168 Benchmark]: RCFGBuilder took 245.23 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-12-08 11:58:51,432 INFO L168 Benchmark]: CodeCheck took 157925.51 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.9 MB). Free memory was 1.1 GB in the beginning and 925.5 MB in the end (delta: 151.1 MB). Peak memory consumption was 182.1 MB. Max. memory is 11.5 GB. [2018-12-08 11:58:51,432 INFO L168 Benchmark]: Witness Printer took 37.35 ms. Allocated memory is still 1.2 GB. Free memory was 925.5 MB in the beginning and 917.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2018-12-08 11:58:51,434 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, 29 locations, 9 error locations. SAFE Result, 157.3s OverallTime, 42 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -2147483648 SDtfs, 546060312 SDslu, 136 SDs, 0 SdLazy, 1664455358 SolverSat, -1039243510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6869 GetRequests, 5988 SyntacticMatches, 231 SemanticMatches, 650 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192425 ImplicationChecksByTransitivity, 154.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 31.4s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 100415 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 21 PerfectInterpolantSequences, 189/397 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: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 569]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant [2018-12-08 11:58:51,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,436 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,436 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((1 == \valid[us] && 1 <= us) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && 0 <= n2) && unknown-#length-unknown[us] <= us + n2) && us + n2 <= unknown-#length-unknown[us] - InvariantResult [Line: 558]: Loop Invariant [2018-12-08 11:58:51,436 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,436 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 546]: Loop Invariant [2018-12-08 11:58:51,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,439 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,439 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,439 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 11:58:51,441 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:58:51,442 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((((((((1 == \valid[dst] && unknown-#length-unknown[dst] <= n) && 1 <= n) && 0 == src) && 0 <= dst) && 1 <= unknown-#length-unknown[src]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && 0 == unknown-#memory_int-unknown[src][unknown-#length-unknown[src] + -1]) && !(dst == src)) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && n + dst <= unknown-#length-unknown[dst]) && 1 == \valid[src]) || (((((((((((unknown-#length-unknown[dst] <= n + dst && 1 == \valid[dst]) && 1 <= dst) && src + 1 <= unknown-#length-unknown[src]) && (src + 2 <= unknown-#length-unknown[src] || src <= 1)) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && 0 == unknown-#memory_int-unknown[src][unknown-#length-unknown[src] + -1]) && !(dst == src)) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && n + dst <= unknown-#length-unknown[dst]) && 1 <= src) && 1 == \valid[src])) || (((((((((unknown-#length-unknown[dst] <= n + dst && 2 <= dst) && 1 == \valid[dst]) && !(unknown-#length-unknown[src] <= src || src <= 1)) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0]) && 0 == unknown-#memory_int-unknown[src][unknown-#length-unknown[src] + -1]) && !(dst == src)) && !(__builtin_alloca (n * sizeof(char)) == __builtin_alloca (length * sizeof(char)))) && n + dst <= unknown-#length-unknown[dst]) && 1 == \valid[src]) - InvariantResult [Line: 546]: Loop Invariant [2018-12-08 11:58:51,442 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:58:51,442 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (n * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char)) := 0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 245.23 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * CodeCheck took 157925.51 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.9 MB). Free memory was 1.1 GB in the beginning and 925.5 MB in the end (delta: 151.1 MB). Peak memory consumption was 182.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.35 ms. Allocated memory is still 1.2 GB. Free memory was 925.5 MB in the beginning and 917.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...