./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-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_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/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 aa22a20876a8e4326d678ff2db099090fa4b56ec .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 13:07:49,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 13:07:49,962 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 13:07:49,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 13:07:49,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 13:07:49,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 13:07:49,972 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 13:07:49,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 13:07:49,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 13:07:49,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 13:07:49,975 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 13:07:49,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 13:07:49,976 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 13:07:49,977 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 13:07:49,977 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 13:07:49,978 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 13:07:49,978 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 13:07:49,980 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 13:07:49,981 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 13:07:49,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 13:07:49,982 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 13:07:49,983 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 13:07:49,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 13:07:49,985 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 13:07:49,985 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 13:07:49,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 13:07:49,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 13:07:49,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 13:07:49,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 13:07:49,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 13:07:49,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 13:07:49,988 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 13:07:49,988 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 13:07:49,988 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 13:07:49,989 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 13:07:49,990 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 13:07:49,990 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-01 13:07:49,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 13:07:49,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 13:07:50,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 13:07:50,000 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 13:07:50,000 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 13:07:50,000 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 13:07:50,001 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 13:07:50,002 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 13:07:50,002 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 13:07:50,002 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 13:07:50,002 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 13:07:50,002 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 13:07:50,002 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 13:07:50,002 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 13:07:50,002 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 13:07:50,003 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 13:07:50,003 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 13:07:50,003 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 13:07:50,003 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_0a1c777f-b143-4cb7-8e07-c86516b7d091/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 -> aa22a20876a8e4326d678ff2db099090fa4b56ec [2018-12-01 13:07:50,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 13:07:50,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 13:07:50,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 13:07:50,039 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 13:07:50,039 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 13:07:50,040 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i [2018-12-01 13:07:50,076 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/data/7ad39e56e/6b9c8edda5d44e47967b9d1a424e3a81/FLAG154583c9b [2018-12-01 13:07:50,447 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 13:07:50,447 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca_true-valid-memsafety_true-termination.i [2018-12-01 13:07:50,453 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/data/7ad39e56e/6b9c8edda5d44e47967b9d1a424e3a81/FLAG154583c9b [2018-12-01 13:07:50,462 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/data/7ad39e56e/6b9c8edda5d44e47967b9d1a424e3a81 [2018-12-01 13:07:50,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 13:07:50,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 13:07:50,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 13:07:50,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 13:07:50,467 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 13:07:50,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9c013a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50, skipping insertion in model container [2018-12-01 13:07:50,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 13:07:50,500 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 13:07:50,659 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:07:50,665 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 13:07:50,721 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 13:07:50,745 INFO L195 MainTranslator]: Completed translation [2018-12-01 13:07:50,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50 WrapperNode [2018-12-01 13:07:50,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 13:07:50,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 13:07:50,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 13:07:50,746 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 13:07:50,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 13:07:50,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 13:07:50,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 13:07:50,771 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 13:07:50,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 13:07:50,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 13:07:50,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 13:07:50,784 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 13:07:50,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:07:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/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 [2018-12-01 13:07:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 13:07:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 13:07:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 13:07:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 13:07:50,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 13:07:50,954 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 13:07:50,954 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-01 13:07:50,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:07:50 BoogieIcfgContainer [2018-12-01 13:07:50,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 13:07:50,954 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 13:07:50,954 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 13:07:50,960 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 13:07:50,961 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:07:50" (1/1) ... [2018-12-01 13:07:50,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 13:07:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:50,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-12-01 13:07:50,988 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-01 13:07:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-01 13:07:50,989 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:07:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-12-01 13:07:51,095 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-01 13:07:51,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 13:07:51,096 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:07:51,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-12-01 13:07:51,111 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-01 13:07:51,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 13:07:51,111 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:07:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-12-01 13:07:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-12-01 13:07:51,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 13:07:51,180 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:07:51,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:51,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2018-12-01 13:07:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2018-12-01 13:07:51,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 13:07:51,447 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:51,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:07:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:51,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2018-12-01 13:07:51,939 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2018-12-01 13:07:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 13:07:51,941 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:07:54,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:54,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 26 states and 44 transitions. [2018-12-01 13:07:54,138 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2018-12-01 13:07:54,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 13:07:54,139 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 13:07:54,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:54,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 26 states and 43 transitions. [2018-12-01 13:07:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2018-12-01 13:07:54,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 13:07:54,336 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:54,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-01 13:07:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:56,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 32 states and 58 transitions. [2018-12-01 13:07:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 58 transitions. [2018-12-01 13:07:56,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 13:07:56,543 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:07:57,354 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2018-12-01 13:07:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 35 states and 73 transitions. [2018-12-01 13:07:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 73 transitions. [2018-12-01 13:07:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 13:07:58,952 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:58,969 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-01 13:07:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:59,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 35 states and 72 transitions. [2018-12-01 13:07:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 72 transitions. [2018-12-01 13:07:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 13:07:59,255 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:59,271 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-01 13:07:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:07:59,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 36 states and 75 transitions. [2018-12-01 13:07:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 75 transitions. [2018-12-01 13:07:59,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 13:07:59,590 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:07:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:07:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-01 13:08:00,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:08:00,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 38 states and 79 transitions. [2018-12-01 13:08:00,596 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 79 transitions. [2018-12-01 13:08:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 13:08:00,597 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 13:08:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 13:08:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 13:08:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 13:08:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2018-12-01 13:08:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2018-12-01 13:08:05,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 13:08:05,343 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2018-12-01 13:08:05,350 INFO L779 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-12-01 13:08:05,519 INFO L583 CodeCheckObserver]: Invariant with dag size 42 [2018-12-01 13:08:05,523 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,524 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,524 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,524 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,524 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,524 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,524 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,525 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,529 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,529 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,530 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,531 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,531 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,531 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,531 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-01 13:08:05,532 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,532 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 01:08:05 ImpRootNode [2018-12-01 13:08:05,532 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 13:08:05,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 13:08:05,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 13:08:05,532 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 13:08:05,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:07:50" (3/4) ... [2018-12-01 13:08:05,535 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 13:08:05,540 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-01 13:08:05,541 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-01 13:08:05,541 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-01 13:08:05,556 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-01 13:08:05,556 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == \valid[p] && \valid[__builtin_alloca (length * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]]) && 1 <= p) && length + p <= unknown-#length-unknown[p]) && 0 <= length) || ((((1 == \valid[p] && \valid[__builtin_alloca (length * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]]) && 4294967296 * ((length + (p + (-unknown-#length-unknown[p] + 4294967295))) / 4294967296) <= length) && 2 <= p)) || ((((((1 == \valid[p] && \valid[__builtin_alloca (length * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]]) && length <= 2147483647) && 0 == p) && length <= unknown-#length-unknown[p]) && 1 <= length) [2018-12-01 13:08:05,565 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0a1c777f-b143-4cb7-8e07-c86516b7d091/bin-2019/ukojak/witness.graphml [2018-12-01 13:08:05,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 13:08:05,565 INFO L168 Benchmark]: Toolchain (without parser) took 15101.72 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 359.1 MB). Free memory was 956.0 MB in the beginning and 1.3 GB in the end (delta: -383.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:08:05,566 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 13:08:05,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-01 13:08:05,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.43 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-01 13:08:05,566 INFO L168 Benchmark]: Boogie Preprocessor took 12.71 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. [2018-12-01 13:08:05,566 INFO L168 Benchmark]: RCFGBuilder took 170.49 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-12-01 13:08:05,567 INFO L168 Benchmark]: CodeCheck took 14577.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 221.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -240.4 MB). Peak memory consumption was 518.4 MB. Max. memory is 11.5 GB. [2018-12-01 13:08:05,567 INFO L168 Benchmark]: Witness Printer took 32.59 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 647.3 kB). Peak memory consumption was 647.3 kB. Max. memory is 11.5 GB. [2018-12-01 13:08:05,568 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, 16 locations, 3 error locations. SAFE Result, 14.3s OverallTime, 14 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30720 SDtfs, 14336 SDslu, 16512 SDs, 0 SdLazy, 108148 SolverSat, 42612 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1155 GetRequests, 941 SyntacticMatches, 34 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12655 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 11387 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 27/58 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: 547]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 544]: Loop Invariant [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,570 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,571 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,571 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,571 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 13:08:05,572 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,573 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,573 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,573 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((1 == \valid[p] && \valid[__builtin_alloca (length * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]]) && 1 <= p) && length + p <= unknown-#length-unknown[p]) && 0 <= length) || ((((1 == \valid[p] && \valid[__builtin_alloca (length * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]]) && 4294967296 * ((length + (p + (-unknown-#length-unknown[p] + 4294967295))) / 4294967296) <= length) && 2 <= p)) || ((((((1 == \valid[p] && \valid[__builtin_alloca (length * sizeof(char)) := 0][__builtin_alloca (length * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length * sizeof(char))]]) && length <= 2147483647) && 0 == p) && length <= unknown-#length-unknown[p]) && 1 <= length) - InvariantResult [Line: 547]: Loop Invariant [2018-12-01 13:08:05,573 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 13:08:05,573 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 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.43 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.71 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 170.49 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * CodeCheck took 14577.66 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 221.8 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -240.4 MB). Peak memory consumption was 518.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.59 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 647.3 kB). Peak memory consumption was 647.3 kB. 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 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 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 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 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 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 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 #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 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 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 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 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 main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...