./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_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/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_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/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 [2018-12-09 19:06:55,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:06:55,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:06:55,920 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:06:55,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:06:55,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:06:55,921 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:06:55,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:06:55,923 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:06:55,924 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:06:55,924 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:06:55,924 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:06:55,925 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:06:55,925 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:06:55,926 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:06:55,926 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:06:55,927 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:06:55,928 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:06:55,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:06:55,929 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:06:55,930 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:06:55,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:06:55,932 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:06:55,932 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:06:55,932 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:06:55,932 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:06:55,933 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:06:55,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:06:55,934 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:06:55,934 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:06:55,935 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:06:55,935 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:06:55,935 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:06:55,935 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:06:55,936 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:06:55,936 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:06:55,936 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 19:06:55,944 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:06:55,944 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:06:55,945 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 19:06:55,945 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 19:06:55,945 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:06:55,945 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:06:55,945 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 19:06:55,945 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:06:55,945 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:06:55,946 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:06:55,946 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 19:06:55,946 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 19:06:55,946 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 19:06:55,946 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:06:55,946 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:06:55,946 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:06:55,946 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 19:06:55,947 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 19:06:55,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:06:55,947 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:06:55,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 19:06:55,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:06:55,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:06:55,947 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 19:06:55,947 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:06:55,947 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_61e3569f-a372-4db3-8671-8856d028f8d0/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 [2018-12-09 19:06:55,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:06:55,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:06:55,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:06:55,974 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:06:55,974 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:06:55,974 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-12-09 19:06:56,008 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/data/e7328cdf0/90654efb263c417e9b2bf6e5eb41c870/FLAG97bc850ea [2018-12-09 19:06:56,386 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:06:56,386 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/sv-benchmarks/c/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-12-09 19:06:56,392 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/data/e7328cdf0/90654efb263c417e9b2bf6e5eb41c870/FLAG97bc850ea [2018-12-09 19:06:56,752 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/data/e7328cdf0/90654efb263c417e9b2bf6e5eb41c870 [2018-12-09 19:06:56,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:06:56,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:06:56,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:06:56,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:06:56,760 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:06:56,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:06:56" (1/1) ... [2018-12-09 19:06:56,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ed641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:56, skipping insertion in model container [2018-12-09 19:06:56,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:06:56" (1/1) ... [2018-12-09 19:06:56,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:06:56,793 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:06:56,930 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:06:56,937 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:06:56,991 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:06:57,011 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:06:57,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57 WrapperNode [2018-12-09 19:06:57,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:06:57,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:06:57,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:06:57,012 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:06:57,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:06:57,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:06:57,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:06:57,037 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:06:57,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:06:57,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:06:57,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:06:57,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:06:57,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:06:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 19:06:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:06:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:06:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:06:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:06:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:06:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:06:57,252 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:06:57,252 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 19:06:57,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:06:57 BoogieIcfgContainer [2018-12-09 19:06:57,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:06:57,253 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 19:06:57,253 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 19:06:57,260 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 19:06:57,260 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:06:57" (1/1) ... [2018-12-09 19:06:57,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:06:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-09 19:06:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 19:06:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 19:06:57,292 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:57,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-09 19:06:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-09 19:06:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 19:06:57,390 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:57,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:57,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-09 19:06:57,442 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 19:06:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 19:06:57,442 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:57,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:57,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-09 19:06:57,602 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-09 19:06:57,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 19:06:57,602 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:57,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-09 19:06:57,661 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 19:06:57,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 19:06:57,662 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:57,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2018-12-09 19:06:57,780 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-12-09 19:06:57,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 19:06:57,780 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:57,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:58,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-12-09 19:06:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-12-09 19:06:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 19:06:58,089 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:58,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2018-12-09 19:06:58,534 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2018-12-09 19:06:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 19:06:58,534 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:06:59,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2018-12-09 19:06:59,243 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-12-09 19:06:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 19:06:59,244 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:06:59,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:06:59,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2018-12-09 19:06:59,523 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2018-12-09 19:06:59,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 19:06:59,524 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:06:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:06:59,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:07:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:01,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-12-09 19:07:01,507 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-12-09 19:07:01,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 19:07:01,507 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:07:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:03,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 58 transitions. [2018-12-09 19:07:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 58 transitions. [2018-12-09 19:07:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 19:07:03,635 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:07:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 37 states and 64 transitions. [2018-12-09 19:07:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 64 transitions. [2018-12-09 19:07:04,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:07:04,399 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:07:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 36 states and 60 transitions. [2018-12-09 19:07:04,566 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 60 transitions. [2018-12-09 19:07:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:07:04,566 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:07:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 42 states and 75 transitions. [2018-12-09 19:07:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2018-12-09 19:07:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 19:07:08,414 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:08,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:07:08,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 43 states and 78 transitions. [2018-12-09 19:07:08,637 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 78 transitions. [2018-12-09 19:07:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 19:07:08,637 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 19:07:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:09,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 46 states and 86 transitions. [2018-12-09 19:07:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 86 transitions. [2018-12-09 19:07:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 19:07:09,594 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:09,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 19:07:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:10,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 47 states and 89 transitions. [2018-12-09 19:07:10,171 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 89 transitions. [2018-12-09 19:07:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 19:07:10,171 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:07:11,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:11,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 49 states and 93 transitions. [2018-12-09 19:07:11,499 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2018-12-09 19:07:11,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 19:07:11,500 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 19:07:19,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:19,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 58 states and 115 transitions. [2018-12-09 19:07:19,152 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 115 transitions. [2018-12-09 19:07:19,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 19:07:19,153 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 19:07:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 66 states and 134 transitions. [2018-12-09 19:07:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 134 transitions. [2018-12-09 19:07:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 19:07:23,752 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 19:07:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 68 states and 138 transitions. [2018-12-09 19:07:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 138 transitions. [2018-12-09 19:07:25,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 19:07:25,115 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 19:07:25,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:25,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 69 states and 140 transitions. [2018-12-09 19:07:25,500 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 140 transitions. [2018-12-09 19:07:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 19:07:25,500 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:25,539 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 19:07:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 69 states and 139 transitions. [2018-12-09 19:07:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 139 transitions. [2018-12-09 19:07:26,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 19:07:26,019 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 19:07:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:26,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 70 states and 142 transitions. [2018-12-09 19:07:26,376 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 142 transitions. [2018-12-09 19:07:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 19:07:26,376 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:07:30,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:30,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 73 states and 146 transitions. [2018-12-09 19:07:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 146 transitions. [2018-12-09 19:07:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 19:07:30,640 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 19:07:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:07:30,999 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:07:33,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 19:07:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-12-09 19:07:33,777 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-12-09 19:07:33,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:07:33,777 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2018-12-09 19:07:33,787 INFO L779 CodeCheckObserver]: All specifications hold 7 specifications checked. All of them hold [2018-12-09 19:07:34,040 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2018-12-09 19:07:34,185 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-12-09 19:07:34,185 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-09 19:07:34,190 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,196 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,196 INFO L583 CodeCheckObserver]: Invariant with dag size 44 [2018-12-09 19:07:34,199 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,199 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,200 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,200 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,200 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,200 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,201 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,201 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,201 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,202 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,202 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,202 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,204 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,205 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,205 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,205 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,205 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,205 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,206 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,206 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,206 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,206 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,207 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,207 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,207 INFO L583 CodeCheckObserver]: Invariant with dag size 8 [2018-12-09 19:07:34,208 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,208 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 07:07:34 ImpRootNode [2018-12-09 19:07:34,209 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 19:07:34,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:07:34,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:07:34,210 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:07:34,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:06:57" (3/4) ... [2018-12-09 19:07:34,214 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:07:34,222 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-09 19:07:34,222 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 19:07:34,222 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 19:07:34,239 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-09 19:07:34,239 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)))) [2018-12-09 19:07:34,239 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] [2018-12-09 19:07:34,248 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_61e3569f-a372-4db3-8671-8856d028f8d0/bin-2019/ukojak/witness.graphml [2018-12-09 19:07:34,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:07:34,249 INFO L168 Benchmark]: Toolchain (without parser) took 37493.95 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 442.0 MB). Free memory was 956.0 MB in the beginning and 1.4 GB in the end (delta: -397.5 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2018-12-09 19:07:34,250 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. [2018-12-09 19:07:34,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:07:34,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.58 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:07:34,250 INFO L168 Benchmark]: Boogie Preprocessor took 14.64 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. [2018-12-09 19:07:34,250 INFO L168 Benchmark]: RCFGBuilder took 201.36 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:07:34,250 INFO L168 Benchmark]: CodeCheck took 36956.00 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 318.8 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -287.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:07:34,251 INFO L168 Benchmark]: Witness Printer took 39.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:07:34,252 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, 36.5s OverallTime, 27 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67108864 SDtfs, 76772174 SDslu, 67117056 SDs, 0 SdLazy, 835642980 SolverSat, 368822990 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2598 GetRequests, 2173 SyntacticMatches, 69 SemanticMatches, 356 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61653 ImplicationChecksByTransitivity, 34.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 23250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 91/164 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: 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: 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: 547]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 559]: 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 [2018-12-09 19:07:34,253 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,253 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 544]: Loop Invariant [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,254 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,255 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,255 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,255 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,256 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 19:07:34,257 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,257 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 [2018-12-09 19:07:34,257 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 19:07:34,257 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 0.11 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 254.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.58 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.64 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 201.36 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * CodeCheck took 36956.00 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 318.8 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -287.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Witness Printer took 39.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 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...