./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/count_down-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_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/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 f25230c4e3ada1aa4514132cfb87afb0e539c23b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 17:11:43,866 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:11:43,867 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:11:43,873 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:11:43,873 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:11:43,874 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:11:43,874 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:11:43,875 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:11:43,876 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:11:43,877 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:11:43,877 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:11:43,877 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:11:43,878 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:11:43,878 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:11:43,879 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:11:43,879 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:11:43,880 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:11:43,881 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:11:43,882 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:11:43,882 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:11:43,883 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:11:43,884 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:11:43,885 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:11:43,885 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:11:43,885 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:11:43,886 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:11:43,886 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:11:43,887 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:11:43,887 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:11:43,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:11:43,888 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:11:43,888 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:11:43,888 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:11:43,889 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:11:43,889 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:11:43,889 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:11:43,890 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 17:11:43,897 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:11:43,897 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:11:43,898 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 17:11:43,898 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 17:11:43,898 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 17:11:43,899 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 17:11:43,899 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:11:43,899 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:11:43,899 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 17:11:43,899 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 17:11:43,899 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 17:11:43,899 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:11:43,899 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:11:43,899 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 17:11:43,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:11:43,900 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:11:43,900 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 17:11:43,900 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:11:43,900 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_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/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 -> f25230c4e3ada1aa4514132cfb87afb0e539c23b [2018-12-09 17:11:43,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:11:43,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:11:43,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:11:43,928 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:11:43,928 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:11:43,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-12-09 17:11:43,963 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/data/86eaca4df/c21a44c61af24124a926955242322453/FLAG7d0f6edc2 [2018-12-09 17:11:44,331 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:11:44,331 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/sv-benchmarks/c/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2018-12-09 17:11:44,337 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/data/86eaca4df/c21a44c61af24124a926955242322453/FLAG7d0f6edc2 [2018-12-09 17:11:44,693 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/data/86eaca4df/c21a44c61af24124a926955242322453 [2018-12-09 17:11:44,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:11:44,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:11:44,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:11:44,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:11:44,703 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:11:44,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201b218f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44, skipping insertion in model container [2018-12-09 17:11:44,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:11:44,732 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:11:44,868 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:11:44,875 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:11:44,934 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:11:44,958 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:11:44,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44 WrapperNode [2018-12-09 17:11:44,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:11:44,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:11:44,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:11:44,959 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:11:44,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:11:44,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:11:44,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:11:44,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:11:44,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:44,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... [2018-12-09 17:11:45,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:11:45,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:11:45,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:11:45,000 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:11:45,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:11:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 17:11:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:11:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 17:11:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 17:11:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 17:11:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:11:45,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:11:45,231 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:11:45,231 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-09 17:11:45,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:11:45 BoogieIcfgContainer [2018-12-09 17:11:45,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:11:45,232 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 17:11:45,232 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 17:11:45,240 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 17:11:45,240 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:11:45" (1/1) ... [2018-12-09 17:11:45,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:11:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2018-12-09 17:11:45,270 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2018-12-09 17:11:45,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 17:11:45,272 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2018-12-09 17:11:45,373 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-12-09 17:11:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 17:11:45,375 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:45,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2018-12-09 17:11:45,461 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-12-09 17:11:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 17:11:45,461 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:45,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:45,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2018-12-09 17:11:45,757 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-12-09 17:11:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 17:11:45,757 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:46,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:46,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2018-12-09 17:11:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-12-09 17:11:46,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 17:11:46,023 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:46,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:46,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2018-12-09 17:11:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-12-09 17:11:46,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 17:11:46,557 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:46,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2018-12-09 17:11:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2018-12-09 17:11:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 17:11:46,864 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:46,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:46,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:46,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 38 transitions. [2018-12-09 17:11:46,964 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2018-12-09 17:11:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 17:11:46,964 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:47,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:11:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2018-12-09 17:11:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2018-12-09 17:11:47,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 17:11:47,327 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 17:11:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:47,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-12-09 17:11:47,476 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-12-09 17:11:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 17:11:47,476 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:47,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:47,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2018-12-09 17:11:47,496 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2018-12-09 17:11:47,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 17:11:47,497 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:11:47,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2018-12-09 17:11:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2018-12-09 17:11:47,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 17:11:47,728 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:11:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:47,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2018-12-09 17:11:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2018-12-09 17:11:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 17:11:47,753 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2018-12-09 17:11:47,815 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2018-12-09 17:11:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 17:11:47,816 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:47,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 17:11:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2018-12-09 17:11:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2018-12-09 17:11:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 17:11:49,380 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:49,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 17:11:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:49,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2018-12-09 17:11:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2018-12-09 17:11:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 17:11:49,500 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:49,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:52,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 63 transitions. [2018-12-09 17:11:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2018-12-09 17:11:52,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 17:11:52,906 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 17:11:53,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 34 states and 62 transitions. [2018-12-09 17:11:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 62 transitions. [2018-12-09 17:11:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 17:11:53,083 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:53,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 35 states and 64 transitions. [2018-12-09 17:11:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 64 transitions. [2018-12-09 17:11:53,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 17:11:53,308 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:53,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:11:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 36 states and 67 transitions. [2018-12-09 17:11:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 67 transitions. [2018-12-09 17:11:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 17:11:53,482 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:55,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:55,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 41 states and 78 transitions. [2018-12-09 17:11:55,366 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 78 transitions. [2018-12-09 17:11:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 17:11:55,367 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 17:11:55,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 42 states and 79 transitions. [2018-12-09 17:11:55,725 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 79 transitions. [2018-12-09 17:11:55,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 17:11:55,725 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 17:11:56,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:56,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 45 states and 87 transitions. [2018-12-09 17:11:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 87 transitions. [2018-12-09 17:11:56,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:11:56,666 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 17:11:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 46 states and 89 transitions. [2018-12-09 17:11:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 89 transitions. [2018-12-09 17:11:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:11:56,914 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:57,238 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:11:59,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:59,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 52 states and 102 transitions. [2018-12-09 17:11:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 102 transitions. [2018-12-09 17:11:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:11:59,639 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:11:59,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:11:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 54 states and 106 transitions. [2018-12-09 17:11:59,937 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 106 transitions. [2018-12-09 17:11:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:11:59,937 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:11:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:11:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:12:00,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:00,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 55 states and 107 transitions. [2018-12-09 17:12:00,220 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 107 transitions. [2018-12-09 17:12:00,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:12:00,221 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:12:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 56 states and 111 transitions. [2018-12-09 17:12:00,726 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 111 transitions. [2018-12-09 17:12:00,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:12:00,727 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 17:12:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 52 states and 105 transitions. [2018-12-09 17:12:00,965 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2018-12-09 17:12:00,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:12:00,965 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 17:12:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 54 states and 108 transitions. [2018-12-09 17:12:01,123 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 108 transitions. [2018-12-09 17:12:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:12:01,124 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 17:12:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2018-12-09 17:12:01,786 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2018-12-09 17:12:01,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:12:01,786 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 17:12:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 39 states and 62 transitions. [2018-12-09 17:12:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2018-12-09 17:12:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 17:12:02,086 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-09 17:12:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:02,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 40 states and 62 transitions. [2018-12-09 17:12:02,394 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 62 transitions. [2018-12-09 17:12:02,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 17:12:02,394 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 17:12:02,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2018-12-09 17:12:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2018-12-09 17:12:02,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 17:12:02,675 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:12:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:12:02,685 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 17:12:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:12:02,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2018-12-09 17:12:02,925 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-12-09 17:12:02,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 17:12:02,925 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 35 iterations. [2018-12-09 17:12:02,931 INFO L779 CodeCheckObserver]: All specifications hold 9 specifications checked. All of them hold [2018-12-09 17:12:03,099 INFO L583 CodeCheckObserver]: Invariant with dag size 27 [2018-12-09 17:12:03,102 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,103 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,103 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,106 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,107 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,107 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,107 INFO L583 CodeCheckObserver]: Invariant with dag size 31 [2018-12-09 17:12:03,108 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,108 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,108 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,109 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,109 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,109 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,110 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,110 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,110 INFO L583 CodeCheckObserver]: Invariant with dag size 30 [2018-12-09 17:12:03,111 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,111 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,111 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,111 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,111 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,112 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,112 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,112 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,113 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,113 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,113 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-09 17:12:03,113 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,113 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 05:12:03 ImpRootNode [2018-12-09 17:12:03,114 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 17:12:03,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:12:03,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:12:03,114 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:12:03,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:11:45" (3/4) ... [2018-12-09 17:12:03,117 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 17:12:03,122 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-09 17:12:03,122 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 17:12:03,123 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 17:12:03,138 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((4 * length == unknown-#length-unknown[arr] && arr + 4 * i <= unknown-#length-unknown[arr]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 4 <= arr + 4 * i) && 1 == \valid[arr]) && arr == 0) || (((((1 <= length && 4 * length == unknown-#length-unknown[arr]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 1 == \valid[arr]) && i == 0) && arr == 0) [2018-12-09 17:12:03,138 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-09 17:12:03,138 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]] && 1 == \valid[arr]) && arr + 4 * length <= unknown-#length-unknown[arr]) && 4 <= arr + 4 * j) || (((((1 <= length && 4 * length == unknown-#length-unknown[arr]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 1 == \valid[arr]) && arr == 0) && j == 0) [2018-12-09 17:12:03,139 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((arr + 4 * j + 4 <= unknown-#length-unknown[arr] && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 1 == \valid[arr]) && 0 < arr + 4 * j + 1) && arr + 4 * length <= unknown-#length-unknown[arr] [2018-12-09 17:12:03,149 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5c8d4d6a-4fd2-44b1-9d54-8733052dfc10/bin-2019/ukojak/witness.graphml [2018-12-09 17:12:03,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:12:03,150 INFO L168 Benchmark]: Toolchain (without parser) took 18452.80 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 412.1 MB). Free memory was 956.0 MB in the beginning and 967.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 400.3 MB. Max. memory is 11.5 GB. [2018-12-09 17:12:03,150 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:12:03,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-09 17:12:03,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 17:12:03,151 INFO L168 Benchmark]: Boogie Preprocessor took 15.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:12:03,151 INFO L168 Benchmark]: RCFGBuilder took 231.90 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-12-09 17:12:03,152 INFO L168 Benchmark]: CodeCheck took 17881.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 282.1 MB). Free memory was 1.1 GB in the beginning and 967.8 MB in the end (delta: 111.3 MB). Peak memory consumption was 393.4 MB. Max. memory is 11.5 GB. [2018-12-09 17:12:03,152 INFO L168 Benchmark]: Witness Printer took 34.92 ms. Allocated memory is still 1.4 GB. Free memory is still 967.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:12:03,153 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, 31 locations, 9 error locations. SAFE Result, 17.6s OverallTime, 35 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171966464 SDtfs, 1469859056 SDslu, 158793600 SDs, 0 SdLazy, -962647632 SolverSat, 1500267724 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3677 GetRequests, 3293 SyntacticMatches, 86 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42123 ImplicationChecksByTransitivity, 16.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 35410 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 21 PerfectInterpolantSequences, 105/126 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: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - InvariantResult [Line: 555]: Loop Invariant [2018-12-09 17:12:03,155 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,155 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,155 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,156 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,156 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,156 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((arr + 4 * j + 4 <= unknown-#length-unknown[arr] && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 1 == \valid[arr]) && 0 < arr + 4 * j + 1) && arr + 4 * length <= unknown-#length-unknown[arr] - InvariantResult [Line: 554]: Loop Invariant [2018-12-09 17:12:03,157 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,157 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,157 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,157 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,158 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,158 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,158 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,158 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: (((\old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]] && 1 == \valid[arr]) && arr + 4 * length <= unknown-#length-unknown[arr]) && 4 <= arr + 4 * j) || (((((1 <= length && 4 * length == unknown-#length-unknown[arr]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 1 == \valid[arr]) && arr == 0) && j == 0) - InvariantResult [Line: 547]: Loop Invariant [2018-12-09 17:12:03,159 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,159 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,159 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,160 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,160 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,160 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,161 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,161 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,161 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 17:12:03,161 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: (((((4 * length == unknown-#length-unknown[arr] && arr + 4 * i <= unknown-#length-unknown[arr]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 4 <= arr + 4 * i) && 1 == \valid[arr]) && arr == 0) || (((((1 <= length && 4 * length == unknown-#length-unknown[arr]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length*sizeof(int)) := \valid[__builtin_alloca (length*sizeof(int)) := 0][__builtin_alloca (length*sizeof(int))]]) && 1 == \valid[arr]) && i == 0) && arr == 0) - InvariantResult [Line: 540]: Loop Invariant [2018-12-09 17:12:03,161 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 17:12:03,162 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.02 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 231.90 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: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * CodeCheck took 17881.53 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 282.1 MB). Free memory was 1.1 GB in the beginning and 967.8 MB in the end (delta: 111.3 MB). Peak memory consumption was 393.4 MB. Max. memory is 11.5 GB. * Witness Printer took 34.92 ms. Allocated memory is still 1.4 GB. Free memory is still 967.8 MB. 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 #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 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 #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...