./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrchr-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_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/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 b77e20ecf2782844251cc1f0f4840606114db633 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:46:55,705 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:46:55,706 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:46:55,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:46:55,712 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:46:55,712 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:46:55,713 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:46:55,714 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:46:55,715 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:46:55,715 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:46:55,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:46:55,716 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:46:55,716 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:46:55,716 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:46:55,717 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:46:55,717 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:46:55,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:46:55,719 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:46:55,720 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:46:55,721 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:46:55,721 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:46:55,722 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:46:55,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:46:55,723 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:46:55,723 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:46:55,723 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:46:55,724 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:46:55,724 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:46:55,724 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:46:55,725 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:46:55,725 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:46:55,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:46:55,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:46:55,726 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:46:55,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:46:55,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:46:55,726 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 02:46:55,733 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:46:55,733 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:46:55,734 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 02:46:55,734 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 02:46:55,734 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:46:55,734 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:46:55,734 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 02:46:55,735 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 02:46:55,735 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:46:55,735 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:46:55,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 02:46:55,736 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:46:55,736 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:46:55,736 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 02:46:55,736 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:46:55,736 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_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/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 -> b77e20ecf2782844251cc1f0f4840606114db633 [2018-12-09 02:46:55,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:46:55,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:46:55,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:46:55,764 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:46:55,765 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:46:55,765 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-09 02:46:55,799 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/data/175cef425/5504dcc9b61149fa9f6b1dc86b0346e3/FLAG43ae88167 [2018-12-09 02:46:56,236 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:46:56,237 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/sv-benchmarks/c/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i [2018-12-09 02:46:56,243 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/data/175cef425/5504dcc9b61149fa9f6b1dc86b0346e3/FLAG43ae88167 [2018-12-09 02:46:56,251 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/data/175cef425/5504dcc9b61149fa9f6b1dc86b0346e3 [2018-12-09 02:46:56,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:46:56,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:46:56,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:46:56,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:46:56,256 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:46:56,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e809d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56, skipping insertion in model container [2018-12-09 02:46:56,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:46:56,279 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:46:56,415 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:46:56,421 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:46:56,478 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:46:56,496 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:46:56,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56 WrapperNode [2018-12-09 02:46:56,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:46:56,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:46:56,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:46:56,497 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:46:56,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:46:56,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:46:56,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:46:56,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:46:56,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:46:56,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:46:56,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:46:56,535 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:46:56,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:46:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/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 02:46:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 02:46:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 02:46:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 02:46:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 02:46:56,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:46:56,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:46:56,741 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:46:56,741 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 02:46:56,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:46:56 BoogieIcfgContainer [2018-12-09 02:46:56,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:46:56,742 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 02:46:56,742 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 02:46:56,749 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 02:46:56,750 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:46:56" (1/1) ... [2018-12-09 02:46:56,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:46:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:56,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-12-09 02:46:56,778 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 02:46:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 02:46:56,779 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:56,860 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 02:46:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:56,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-09 02:46:56,880 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-09 02:46:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 02:46:56,882 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:56,920 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 02:46:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:56,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-09 02:46:56,984 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 02:46:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 02:46:56,984 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,012 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 02:46:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-09 02:46:57,034 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-09 02:46:57,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 02:46:57,034 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,074 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 02:46:57,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:57,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2018-12-09 02:46:57,161 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2018-12-09 02:46:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 02:46:57,162 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,178 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 02:46:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:57,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2018-12-09 02:46:57,188 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-12-09 02:46:57,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 02:46:57,188 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,248 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 02:46:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2018-12-09 02:46:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2018-12-09 02:46:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 02:46:57,353 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,363 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 02:46:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-12-09 02:46:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-12-09 02:46:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 02:46:57,374 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,386 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 02:46:57,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-12-09 02:46:57,398 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-09 02:46:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 02:46:57,399 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:46:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:57,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-12-09 02:46:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-12-09 02:46:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 02:46:57,513 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:57,653 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 02:46:58,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:58,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2018-12-09 02:46:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-12-09 02:46:58,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 02:46:58,195 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:58,270 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 02:46:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:59,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2018-12-09 02:46:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2018-12-09 02:46:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 02:46:59,228 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:59,297 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 02:46:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:46:59,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2018-12-09 02:46:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-12-09 02:46:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 02:46:59,412 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:46:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:46:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:47:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:47:01,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2018-12-09 02:47:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2018-12-09 02:47:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 02:47:01,977 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:47:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:47:02,022 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 02:47:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:47:02,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2018-12-09 02:47:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2018-12-09 02:47:02,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 02:47:02,588 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:47:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:47:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 02:47:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:47:02,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2018-12-09 02:47:02,822 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2018-12-09 02:47:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 02:47:02,823 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:47:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:47:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 02:47:06,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:47:06,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2018-12-09 02:47:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2018-12-09 02:47:06,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 02:47:06,732 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:47:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:47:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 02:47:07,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:47:07,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2018-12-09 02:47:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-12-09 02:47:07,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 02:47:07,295 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 02:47:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:47:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 02:47:07,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 02:47:07,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2018-12-09 02:47:07,741 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2018-12-09 02:47:07,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 02:47:07,742 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 19 iterations. [2018-12-09 02:47:07,748 INFO L779 CodeCheckObserver]: All specifications hold 9 specifications checked. All of them hold [2018-12-09 02:47:07,937 INFO L583 CodeCheckObserver]: Invariant with dag size 27 [2018-12-09 02:47:07,941 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,941 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,942 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,942 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,942 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,942 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,942 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,942 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,947 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,947 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,948 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,949 INFO L583 CodeCheckObserver]: Invariant with dag size 17 [2018-12-09 02:47:07,949 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,950 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,950 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,950 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,951 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-09 02:47:07,951 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,951 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 02:47:07 ImpRootNode [2018-12-09 02:47:07,951 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 02:47:07,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 02:47:07,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 02:47:07,952 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 02:47:07,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:46:56" (3/4) ... [2018-12-09 02:47:07,954 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 02:47:07,960 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-09 02:47:07,960 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 02:47:07,960 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 02:47:07,976 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((s + 1 <= unknown-#length-unknown[s] && 1 == \valid[s]) && \valid[__builtin_alloca (length * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 <= s) && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) || ((((1 <= unknown-#length-unknown[s] && 1 == \valid[s]) && s == 0) && \valid[__builtin_alloca (length * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) [2018-12-09 02:47:07,976 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 < s + 1 && s + 1 <= unknown-#length-unknown[s]) && 1 == \valid[s]) && \valid[__builtin_alloca (length * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown) [2018-12-09 02:47:07,977 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-09 02:47:07,989 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cda4e8df-e1ed-4a66-97c4-9c758bfed11f/bin-2019/ukojak/witness.graphml [2018-12-09 02:47:07,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 02:47:07,990 INFO L168 Benchmark]: Toolchain (without parser) took 11736.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -229.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:47:07,990 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:47:07,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-09 02:47:07,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.78 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:47:07,991 INFO L168 Benchmark]: Boogie Preprocessor took 13.26 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. [2018-12-09 02:47:07,991 INFO L168 Benchmark]: RCFGBuilder took 206.96 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-09 02:47:07,991 INFO L168 Benchmark]: CodeCheck took 11209.81 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 106.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -116.8 MB). Peak memory consumption was 358.1 MB. Max. memory is 11.5 GB. [2018-12-09 02:47:07,992 INFO L168 Benchmark]: Witness Printer took 37.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 195.9 kB). Peak memory consumption was 195.9 kB. Max. memory is 11.5 GB. [2018-12-09 02:47:07,993 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, 28 locations, 9 error locations. SAFE Result, 10.9s OverallTime, 19 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 90112 SDtfs, 130568 SDslu, 98432 SDs, 0 SdLazy, 2177564 SolverSat, 1076708 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1227 GetRequests, 1007 SyntacticMatches, 24 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15974 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 9051 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 32/50 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: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 542]: 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: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 542]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - InvariantResult [Line: 542]: Loop Invariant [2018-12-09 02:47:07,994 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,994 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,994 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,994 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,994 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,995 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,995 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,995 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,995 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,995 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,995 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,995 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,996 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,996 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,996 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 02:47:07,996 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((s + 1 <= unknown-#length-unknown[s] && 1 == \valid[s]) && \valid[__builtin_alloca (length * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 <= s) && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) || ((((1 <= unknown-#length-unknown[s] && 1 == \valid[s]) && s == 0) && \valid[__builtin_alloca (length * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) - InvariantResult [Line: 542]: Loop Invariant [2018-12-09 02:47:07,996 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,996 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,996 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 02:47:07,997 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((0 < s + 1 && s + 1 <= unknown-#length-unknown[s]) && 1 == \valid[s]) && \valid[__builtin_alloca (length * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown) - InvariantResult [Line: 546]: Loop Invariant [2018-12-09 02:47:07,997 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 02:47:07,997 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -143.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.78 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.26 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 206.96 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * CodeCheck took 11209.81 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 106.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -116.8 MB). Peak memory consumption was 358.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 195.9 kB). Peak memory consumption was 195.9 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #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 RESULT: Ultimate proved your program to be correct! Received shutdown request...