./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-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_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/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 2995aa83f0315dcda376bb0d80edf8fb8acf3951 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 13:09:17,622 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:09:17,623 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:09:17,629 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:09:17,629 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:09:17,630 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:09:17,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:09:17,631 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:09:17,632 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:09:17,633 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:09:17,634 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:09:17,634 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:09:17,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:09:17,635 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:09:17,636 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:09:17,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:09:17,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:09:17,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:09:17,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:09:17,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:09:17,642 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:09:17,643 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:09:17,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:09:17,644 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:09:17,645 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:09:17,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:09:17,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:09:17,647 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:09:17,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:09:17,648 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:09:17,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:09:17,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:09:17,649 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:09:17,649 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:09:17,649 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:09:17,649 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:09:17,650 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-02 13:09:17,657 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:09:17,657 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:09:17,658 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 13:09:17,658 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 13:09:17,658 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:09:17,659 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 13:09:17,659 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 13:09:17,659 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:09:17,659 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 13:09:17,659 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:09:17,659 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 13:09:17,659 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 13:09:17,660 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 13:09:17,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 13:09:17,660 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 13:09:17,660 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 13:09:17,660 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 13:09:17,660 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 13:09:17,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:09:17,661 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 13:09:17,661 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 13:09:17,661 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:09:17,661 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 13:09:17,661 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 13:09:17,661 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 13:09:17,662 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_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/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 -> 2995aa83f0315dcda376bb0d80edf8fb8acf3951 [2018-12-02 13:09:17,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:09:17,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:09:17,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:09:17,694 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:09:17,694 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:09:17,694 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-12-02 13:09:17,728 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/data/8e15f0d05/0e010e95a6cb40b8a4276d7d4ab6017b/FLAGfb44539ca [2018-12-02 13:09:18,087 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:09:18,088 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-12-02 13:09:18,095 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/data/8e15f0d05/0e010e95a6cb40b8a4276d7d4ab6017b/FLAGfb44539ca [2018-12-02 13:09:18,472 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/data/8e15f0d05/0e010e95a6cb40b8a4276d7d4ab6017b [2018-12-02 13:09:18,474 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:09:18,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:09:18,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:09:18,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:09:18,478 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:09:18,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c140d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18, skipping insertion in model container [2018-12-02 13:09:18,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:09:18,504 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:09:18,641 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:09:18,648 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:09:18,701 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:09:18,722 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:09:18,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18 WrapperNode [2018-12-02 13:09:18,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:09:18,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:09:18,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:09:18,723 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:09:18,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:09:18,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:09:18,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:09:18,748 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:09:18,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:09:18,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:09:18,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:09:18,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:09:18,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 13:09:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 13:09:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 13:09:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 13:09:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 13:09:18,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:09:18,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:09:18,956 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:09:18,957 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-02 13:09:18,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:18 BoogieIcfgContainer [2018-12-02 13:09:18,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:09:18,957 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 13:09:18,957 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 13:09:18,964 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 13:09:18,964 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:18" (1/1) ... [2018-12-02 13:09:18,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:09:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:18,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 13:09:18,995 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 13:09:18,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 13:09:18,996 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:19,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:19,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-02 13:09:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-02 13:09:19,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 13:09:19,106 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:19,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:19,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 13:09:19,152 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 13:09:19,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 13:09:19,152 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:19,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-02 13:09:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-02 13:09:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 13:09:19,332 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:19,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:19,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 13:09:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 13:09:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 13:09:19,376 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:19,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:19,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2018-12-02 13:09:19,499 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-12-02 13:09:19,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 13:09:19,500 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:19,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-12-02 13:09:19,797 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-12-02 13:09:19,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 13:09:19,797 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:20,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:20,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2018-12-02 13:09:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2018-12-02 13:09:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 13:09:20,257 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2018-12-02 13:09:21,027 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2018-12-02 13:09:21,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 13:09:21,027 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 13:09:21,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2018-12-02 13:09:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2018-12-02 13:09:21,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 13:09:21,294 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:23,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2018-12-02 13:09:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2018-12-02 13:09:23,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 13:09:23,631 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:25,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 59 transitions. [2018-12-02 13:09:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2018-12-02 13:09:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 13:09:25,485 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 37 states and 65 transitions. [2018-12-02 13:09:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 65 transitions. [2018-12-02 13:09:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 13:09:26,212 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:27,241 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2018-12-02 13:09:29,541 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-12-02 13:09:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 43 states and 80 transitions. [2018-12-02 13:09:30,817 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 80 transitions. [2018-12-02 13:09:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 13:09:30,817 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 13:09:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:31,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 44 states and 83 transitions. [2018-12-02 13:09:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 83 transitions. [2018-12-02 13:09:31,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 13:09:31,263 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 13:09:33,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 47 states and 91 transitions. [2018-12-02 13:09:33,031 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 91 transitions. [2018-12-02 13:09:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 13:09:33,031 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 13:09:33,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 94 transitions. [2018-12-02 13:09:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2018-12-02 13:09:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 13:09:33,685 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:35,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:35,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 50 states and 98 transitions. [2018-12-02 13:09:35,017 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 98 transitions. [2018-12-02 13:09:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 13:09:35,017 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 13:09:35,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:35,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 49 states and 94 transitions. [2018-12-02 13:09:35,315 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2018-12-02 13:09:35,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 13:09:35,315 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 13:09:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:35,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 50 states and 97 transitions. [2018-12-02 13:09:35,653 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 97 transitions. [2018-12-02 13:09:35,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 13:09:35,654 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:36,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 13:09:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:41,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 59 states and 116 transitions. [2018-12-02 13:09:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 116 transitions. [2018-12-02 13:09:41,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 13:09:41,861 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 13:09:42,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 61 states and 119 transitions. [2018-12-02 13:09:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 119 transitions. [2018-12-02 13:09:42,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 13:09:42,904 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 13:09:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 63 states and 123 transitions. [2018-12-02 13:09:44,418 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 123 transitions. [2018-12-02 13:09:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 13:09:44,419 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 13:09:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 64 states and 124 transitions. [2018-12-02 13:09:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 124 transitions. [2018-12-02 13:09:44,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 13:09:44,947 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 13:09:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:45,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 64 states and 123 transitions. [2018-12-02 13:09:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 123 transitions. [2018-12-02 13:09:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 13:09:45,466 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:09:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:09:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:09:48,444 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-12-02 13:09:50,126 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-12-02 13:09:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:09:51,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-12-02 13:09:51,697 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-12-02 13:09:51,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 13:09:51,697 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2018-12-02 13:09:51,702 INFO L779 CodeCheckObserver]: All specifications hold 7 specifications checked. All of them hold [2018-12-02 13:09:51,837 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-02 13:09:51,993 INFO L583 CodeCheckObserver]: Invariant with dag size 52 [2018-12-02 13:09:52,000 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,000 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,001 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,001 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,001 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,002 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,002 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,002 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,002 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,002 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,003 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,003 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,003 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,004 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,004 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,004 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,004 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,005 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,005 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,005 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,012 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,013 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,014 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,015 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,015 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,015 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,015 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,016 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,016 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,016 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,016 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,016 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,017 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,017 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,017 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,018 INFO L583 CodeCheckObserver]: Invariant with dag size 19 [2018-12-02 13:09:52,019 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,020 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,020 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,020 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,020 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,021 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,021 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,021 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,022 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,022 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,022 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-02 13:09:52,022 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,023 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 01:09:52 ImpRootNode [2018-12-02 13:09:52,023 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 13:09:52,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:09:52,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:09:52,024 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:09:52,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:18" (3/4) ... [2018-12-02 13:09:52,027 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 13:09:52,034 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-02 13:09:52,035 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 13:09:52,035 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 13:09:52,051 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-02 13:09:52,051 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))] && 0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1]) && \valid[to] == 1) && !(from == to)) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 <= unknown-#length-unknown[from]) && unknown-#length-unknown[from] <= unknown-#length-unknown[to]) && to == 0) && 1 == \valid[from]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && from == 0) || (((((((((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))] && to + unknown-#length-unknown[from] <= unknown-#length-unknown[to] + from) && 0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1]) && 1 <= from) && \valid[to] == 1) && !(from == to)) && from + 1 <= unknown-#length-unknown[from]) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 <= to) && 1 == \valid[from]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) [2018-12-02 13:09:52,052 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))] && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) [2018-12-02 13:09:52,065 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0e75043e-e2f2-4d6c-8bc3-13a5622e734e/bin-2019/ukojak/witness.graphml [2018-12-02 13:09:52,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:09:52,066 INFO L168 Benchmark]: Toolchain (without parser) took 33591.33 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 476.6 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -109.2 MB). Peak memory consumption was 367.4 MB. Max. memory is 11.5 GB. [2018-12-02 13:09:52,067 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:09:52,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-02 13:09:52,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.85 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. [2018-12-02 13:09:52,067 INFO L168 Benchmark]: Boogie Preprocessor took 15.16 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. [2018-12-02 13:09:52,068 INFO L168 Benchmark]: RCFGBuilder took 193.66 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-02 13:09:52,068 INFO L168 Benchmark]: CodeCheck took 33065.98 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 349.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 369.0 MB. Max. memory is 11.5 GB. [2018-12-02 13:09:52,068 INFO L168 Benchmark]: Witness Printer took 41.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:09:52,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 23 locations, 7 error locations. SAFE Result, 32.7s OverallTime, 26 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33554432 SDtfs, 38399714 SDslu, 33562624 SDs, 0 SdLazy, 418163664 SolverSat, 184447686 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2357 GetRequests, 1958 SyntacticMatches, 83 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50127 ImplicationChecksByTransitivity, 31.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 30851 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 18 PerfectInterpolantSequences, 85/139 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 557]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: 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: 557]: 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: 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 542]: Loop Invariant [2018-12-02 13:09:52,072 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,072 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,073 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,073 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,073 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,073 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,073 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,073 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,074 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,074 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,074 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,074 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,074 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,074 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,075 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,075 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,075 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,075 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,075 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,075 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,077 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,077 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,077 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,078 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,078 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,078 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,078 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,078 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,078 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,079 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,079 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,079 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,079 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,079 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-02 13:09:52,080 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,080 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 13:09:52,080 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,080 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,080 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,080 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: (((((((((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))] && 0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1]) && \valid[to] == 1) && !(from == to)) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 <= unknown-#length-unknown[from]) && unknown-#length-unknown[from] <= unknown-#length-unknown[to]) && to == 0) && 1 == \valid[from]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && from == 0) || (((((((((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))] && to + unknown-#length-unknown[from] <= unknown-#length-unknown[to] + from) && 0 == unknown-#memory_int-unknown[from][unknown-#length-unknown[from] + -1]) && 1 <= from) && \valid[to] == 1) && !(from == to)) && from + 1 <= unknown-#length-unknown[from]) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 <= to) && 1 == \valid[from]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) - InvariantResult [Line: 542]: Loop Invariant [2018-12-02 13:09:52,081 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,082 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,082 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,082 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,082 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,083 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,083 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,083 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,083 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,083 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((\valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))] && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) - InvariantResult [Line: 545]: Loop Invariant [2018-12-02 13:09:52,084 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-02 13:09:52,084 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 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.7 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.16 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 193.66 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * CodeCheck took 33065.98 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 349.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 369.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.1 GB. There was no memory consumed. 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable 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 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 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable 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 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 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...