./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-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_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/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 834e1cdb1aa87972c4591e301e8fffc5992d43b8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 20:16:22,282 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:16:22,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:16:22,292 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:16:22,292 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:16:22,293 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:16:22,293 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:16:22,294 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:16:22,295 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:16:22,295 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:16:22,296 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:16:22,296 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:16:22,296 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:16:22,297 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:16:22,297 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:16:22,298 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:16:22,299 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:16:22,300 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:16:22,301 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:16:22,302 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:16:22,303 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:16:22,304 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:16:22,305 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:16:22,305 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:16:22,305 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:16:22,306 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:16:22,306 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:16:22,307 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:16:22,307 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:16:22,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:16:22,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:16:22,308 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:16:22,308 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:16:22,308 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:16:22,309 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:16:22,309 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:16:22,309 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-02 20:16:22,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:16:22,318 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:16:22,319 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:16:22,320 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:16:22,320 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:16:22,320 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:16:22,320 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 20:16:22,320 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:16:22,320 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:16:22,320 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:16:22,321 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 20:16:22,321 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 20:16:22,321 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 20:16:22,321 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:16:22,321 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:16:22,321 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:16:22,321 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 20:16:22,321 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 20:16:22,322 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:16:22,322 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:16:22,322 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 20:16:22,322 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:16:22,322 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:16:22,322 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 20:16:22,322 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:16:22,323 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_1c69b8bd-09a6-4184-b618-7fbe271f7492/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 -> 834e1cdb1aa87972c4591e301e8fffc5992d43b8 [2018-12-02 20:16:22,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:16:22,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:16:22,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:16:22,357 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:16:22,357 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:16:22,357 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-12-02 20:16:22,395 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/data/f1f5ad9df/77a4b5d0c43a432bb58b78cba73747cc/FLAGcbbb1149d [2018-12-02 20:16:22,725 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:16:22,725 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-12-02 20:16:22,731 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/data/f1f5ad9df/77a4b5d0c43a432bb58b78cba73747cc/FLAGcbbb1149d [2018-12-02 20:16:22,741 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/data/f1f5ad9df/77a4b5d0c43a432bb58b78cba73747cc [2018-12-02 20:16:22,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:16:22,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:16:22,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:16:22,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:16:22,748 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:16:22,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:22" (1/1) ... [2018-12-02 20:16:22,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fe4f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:22, skipping insertion in model container [2018-12-02 20:16:22,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:22" (1/1) ... [2018-12-02 20:16:22,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:16:22,778 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:16:22,934 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:16:22,941 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:16:22,997 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:16:23,027 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:16:23,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23 WrapperNode [2018-12-02 20:16:23,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:16:23,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:16:23,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:16:23,029 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:16:23,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:16:23,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:16:23,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:16:23,054 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:16:23,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:16:23,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:16:23,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:16:23,069 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:16:23,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/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 [2018-12-02 20:16:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:16:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 20:16:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 20:16:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:16:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:16:23,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:16:23,273 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:16:23,273 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-02 20:16:23,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:23 BoogieIcfgContainer [2018-12-02 20:16:23,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:16:23,273 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 20:16:23,273 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 20:16:23,279 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 20:16:23,280 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:23" (1/1) ... [2018-12-02 20:16:23,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:16:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:23,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 20:16:23,307 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 20:16:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 20:16:23,308 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:23,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:23,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-02 20:16:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-02 20:16:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 20:16:23,417 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:23,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:23,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 20:16:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 20:16:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 20:16:23,453 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:23,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-02 20:16:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-02 20:16:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 20:16:23,592 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 20:16:23,645 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 20:16:23,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 20:16:23,645 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:23,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2018-12-02 20:16:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-12-02 20:16:23,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 20:16:23,771 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-12-02 20:16:24,071 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-12-02 20:16:24,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 20:16:24,072 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:24,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:24,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2018-12-02 20:16:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2018-12-02 20:16:24,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 20:16:24,557 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2018-12-02 20:16:25,250 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-12-02 20:16:25,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 20:16:25,251 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 20:16:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2018-12-02 20:16:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2018-12-02 20:16:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 20:16:25,699 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-12-02 20:16:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-12-02 20:16:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 20:16:27,798 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:29,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 58 transitions. [2018-12-02 20:16:29,710 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2018-12-02 20:16:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 20:16:29,711 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:30,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 37 states and 64 transitions. [2018-12-02 20:16:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 64 transitions. [2018-12-02 20:16:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 20:16:30,295 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 20:16:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 36 states and 60 transitions. [2018-12-02 20:16:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 60 transitions. [2018-12-02 20:16:30,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 20:16:30,453 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:31,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:34,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:34,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 75 transitions. [2018-12-02 20:16:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2018-12-02 20:16:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 20:16:34,292 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 20:16:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:34,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 78 transitions. [2018-12-02 20:16:34,505 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2018-12-02 20:16:34,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 20:16:34,505 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 20:16:35,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:35,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 46 states and 86 transitions. [2018-12-02 20:16:35,531 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 86 transitions. [2018-12-02 20:16:35,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 20:16:35,531 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:16:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 46 states and 85 transitions. [2018-12-02 20:16:35,922 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 85 transitions. [2018-12-02 20:16:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 20:16:35,923 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:16:36,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 47 states and 89 transitions. [2018-12-02 20:16:36,191 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 89 transitions. [2018-12-02 20:16:36,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 20:16:36,191 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:36,358 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:37,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:37,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 49 states and 93 transitions. [2018-12-02 20:16:37,684 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2018-12-02 20:16:37,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 20:16:37,684 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 20:16:38,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 50 states and 96 transitions. [2018-12-02 20:16:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 96 transitions. [2018-12-02 20:16:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 20:16:38,003 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 20:16:43,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:43,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 59 states and 118 transitions. [2018-12-02 20:16:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 118 transitions. [2018-12-02 20:16:43,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 20:16:43,804 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 20:16:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 67 states and 137 transitions. [2018-12-02 20:16:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 137 transitions. [2018-12-02 20:16:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 20:16:48,596 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 20:16:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 67 states and 135 transitions. [2018-12-02 20:16:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 135 transitions. [2018-12-02 20:16:49,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 20:16:49,008 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 20:16:49,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 68 states and 137 transitions. [2018-12-02 20:16:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 137 transitions. [2018-12-02 20:16:49,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 20:16:49,468 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:16:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 70 states and 141 transitions. [2018-12-02 20:16:51,316 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 141 transitions. [2018-12-02 20:16:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:16:51,316 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:16:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:16:52,504 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:16:58,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:16:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-12-02 20:16:58,959 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-12-02 20:16:58,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 20:16:58,959 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2018-12-02 20:16:58,965 INFO L779 CodeCheckObserver]: All specifications hold 7 specifications checked. All of them hold [2018-12-02 20:16:59,162 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-02 20:16:59,166 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,170 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,171 INFO L583 CodeCheckObserver]: Invariant with dag size 44 [2018-12-02 20:16:59,173 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,173 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,174 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,175 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,177 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,178 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,178 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,178 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,178 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,178 INFO L583 CodeCheckObserver]: Invariant with dag size 8 [2018-12-02 20:16:59,178 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,179 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 08:16:59 ImpRootNode [2018-12-02 20:16:59,179 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 20:16:59,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:16:59,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:16:59,179 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:16:59,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:23" (3/4) ... [2018-12-02 20:16:59,182 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 20:16:59,188 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-02 20:16:59,188 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 20:16:59,188 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 20:16:59,204 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-02 20:16:59,204 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1] && \valid[to] == 1) && unknown-#length-unknown[from] <= unknown-#length-unknown[to]) && to == 0) && from == 0) && !(to == from)) && 1 <= unknown-#length-unknown[from]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0]) && 1 == \valid[from]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) || (((((((((0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1] && \valid[to] == 1) && !(to == from)) && 1 <= to) && unknown-#length-unknown[from] + to <= from + unknown-#length-unknown[to]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0]) && 1 <= from) && 1 == \valid[from]) && from + 1 <= unknown-#length-unknown[from]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) [2018-12-02 20:16:59,204 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0] [2018-12-02 20:16:59,215 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1c69b8bd-09a6-4184-b618-7fbe271f7492/bin-2019/ukojak/witness.graphml [2018-12-02 20:16:59,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:16:59,216 INFO L168 Benchmark]: Toolchain (without parser) took 36472.06 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 951.7 MB in the beginning and 1.2 GB in the end (delta: -283.1 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:16:59,217 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:16:59,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:16:59,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 20:16:59,218 INFO L168 Benchmark]: Boogie Preprocessor took 15.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:16:59,218 INFO L168 Benchmark]: RCFGBuilder took 204.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-02 20:16:59,219 INFO L168 Benchmark]: CodeCheck took 35905.67 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 198.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -179.7 MB). Peak memory consumption was 474.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:16:59,219 INFO L168 Benchmark]: Witness Printer took 36.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:16:59,221 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, 23 locations, 7 error locations. SAFE Result, 35.6s OverallTime, 27 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67108864 SDtfs, 76766022 SDslu, 67117056 SDs, 0 SdLazy, 835607548 SolverSat, 368815730 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2476 GetRequests, 2064 SyntacticMatches, 54 SemanticMatches, 358 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61335 ImplicationChecksByTransitivity, 34.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 19387 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 19 PerfectInterpolantSequences, 85/139 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: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 559]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 547]: Loop Invariant [2018-12-02 20:16:59,221 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,222 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 544]: Loop Invariant [2018-12-02 20:16:59,222 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,222 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,222 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,223 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,224 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,224 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,224 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,224 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,225 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((((0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1] && \valid[to] == 1) && unknown-#length-unknown[from] <= unknown-#length-unknown[to]) && to == 0) && from == 0) && !(to == from)) && 1 <= unknown-#length-unknown[from]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0]) && 1 == \valid[from]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) || (((((((((0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1] && \valid[to] == 1) && !(to == from)) && 1 <= to) && unknown-#length-unknown[from] + to <= from + unknown-#length-unknown[to]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0]) && 1 <= from) && 1 == \valid[from]) && from + 1 <= unknown-#length-unknown[from]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) - InvariantResult [Line: 544]: Loop Invariant [2018-12-02 20:16:59,226 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 20:16:59,226 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0] * 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 204.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * CodeCheck took 35905.67 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 198.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -179.7 MB). Peak memory consumption was 474.8 MB. Max. memory is 11.5 GB. * Witness Printer took 36.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 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 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 main_old_#valid - 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 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 main_old_#valid - 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...