./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/insertionsort-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_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/insertionsort-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/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 c911d3bfcad41488f605dca082dbd47805d189ae ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 16:37:31,142 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:37:31,143 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:37:31,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:37:31,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:37:31,149 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:37:31,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:37:31,151 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:37:31,152 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:37:31,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:37:31,152 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:37:31,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:37:31,153 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:37:31,153 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:37:31,154 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:37:31,154 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:37:31,155 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:37:31,156 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:37:31,156 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:37:31,157 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:37:31,158 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:37:31,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:37:31,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:37:31,160 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:37:31,160 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:37:31,160 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:37:31,161 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:37:31,161 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:37:31,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:37:31,162 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:37:31,162 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:37:31,162 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:37:31,163 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:37:31,163 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:37:31,163 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:37:31,164 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:37:31,164 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-08 16:37:31,171 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:37:31,171 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:37:31,172 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 16:37:31,172 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 16:37:31,172 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:37:31,172 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 16:37:31,172 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 16:37:31,172 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 16:37:31,172 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 16:37:31,172 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 16:37:31,173 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 16:37:31,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:37:31,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 16:37:31,174 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:37:31,174 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:37:31,174 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 16:37:31,174 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:37:31,174 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_39c277f7-485a-4944-b5a3-7a69b06ffd85/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 -> c911d3bfcad41488f605dca082dbd47805d189ae [2018-12-08 16:37:31,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:37:31,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:37:31,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:37:31,200 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:37:31,200 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:37:31,201 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/insertionsort-alloca_true-valid-memsafety_true-termination.i [2018-12-08 16:37:31,234 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/data/db1fe7519/be2795bbc922470fb94e8d19aa393ff9/FLAG82c5e30f8 [2018-12-08 16:37:31,558 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:37:31,558 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/sv-benchmarks/c/array-memsafety/insertionsort-alloca_true-valid-memsafety_true-termination.i [2018-12-08 16:37:31,564 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/data/db1fe7519/be2795bbc922470fb94e8d19aa393ff9/FLAG82c5e30f8 [2018-12-08 16:37:31,572 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/data/db1fe7519/be2795bbc922470fb94e8d19aa393ff9 [2018-12-08 16:37:31,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:37:31,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:37:31,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:37:31,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:37:31,577 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:37:31,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@178df10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31, skipping insertion in model container [2018-12-08 16:37:31,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:37:31,600 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:37:31,734 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:37:31,741 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:37:31,798 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:37:31,816 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:37:31,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31 WrapperNode [2018-12-08 16:37:31,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:37:31,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:37:31,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:37:31,817 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:37:31,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:37:31,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:37:31,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:37:31,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:37:31,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... [2018-12-08 16:37:31,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:37:31,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:37:31,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:37:31,856 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:37:31,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:37:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/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 [2018-12-08 16:37:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 16:37:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 16:37:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 16:37:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 16:37:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:37:31,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:37:32,079 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:37:32,079 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 16:37:32,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:37:32 BoogieIcfgContainer [2018-12-08 16:37:32,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:37:32,079 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 16:37:32,079 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 16:37:32,086 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 16:37:32,086 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:37:32" (1/1) ... [2018-12-08 16:37:32,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:37:32,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2018-12-08 16:37:32,114 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-12-08 16:37:32,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 16:37:32,115 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:32,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:32,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:32,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2018-12-08 16:37:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-12-08 16:37:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 16:37:32,237 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:32,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:32,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2018-12-08 16:37:32,435 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2018-12-08 16:37:32,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 16:37:32,436 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:32,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-12-08 16:37:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-12-08 16:37:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 16:37:32,582 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:32,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2018-12-08 16:37:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2018-12-08 16:37:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 16:37:32,593 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:32,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2018-12-08 16:37:32,615 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-12-08 16:37:32,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 16:37:32,615 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:32,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2018-12-08 16:37:33,093 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2018-12-08 16:37:33,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 16:37:33,093 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2018-12-08 16:37:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2018-12-08 16:37:33,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 16:37:33,391 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2018-12-08 16:37:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2018-12-08 16:37:33,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 16:37:33,411 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:33,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2018-12-08 16:37:33,665 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2018-12-08 16:37:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 16:37:33,665 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-12-08 16:37:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-12-08 16:37:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 16:37:33,685 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2018-12-08 16:37:33,862 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2018-12-08 16:37:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 16:37:33,862 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 30 states and 46 transitions. [2018-12-08 16:37:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2018-12-08 16:37:33,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 16:37:33,877 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2018-12-08 16:37:33,977 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2018-12-08 16:37:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 16:37:33,978 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:34,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 38 states and 59 transitions. [2018-12-08 16:37:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 59 transitions. [2018-12-08 16:37:34,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 16:37:34,716 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 16:37:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:35,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 67 transitions. [2018-12-08 16:37:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2018-12-08 16:37:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 16:37:35,268 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:36,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 54 states and 85 transitions. [2018-12-08 16:37:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 85 transitions. [2018-12-08 16:37:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 16:37:36,799 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:37:38,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:38,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 60 states and 100 transitions. [2018-12-08 16:37:38,295 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 100 transitions. [2018-12-08 16:37:38,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 16:37:38,296 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 16:37:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 60 states and 99 transitions. [2018-12-08 16:37:38,468 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 99 transitions. [2018-12-08 16:37:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 16:37:38,468 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 16:37:39,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 64 states and 103 transitions. [2018-12-08 16:37:39,084 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 103 transitions. [2018-12-08 16:37:39,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 16:37:39,085 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 16:37:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 68 states and 107 transitions. [2018-12-08 16:37:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 107 transitions. [2018-12-08 16:37:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 16:37:39,786 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 16:37:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 70 states and 110 transitions. [2018-12-08 16:37:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 110 transitions. [2018-12-08 16:37:40,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 16:37:40,194 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 16:37:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 72 states and 111 transitions. [2018-12-08 16:37:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 111 transitions. [2018-12-08 16:37:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 16:37:40,592 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 16:37:40,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:40,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 73 states and 112 transitions. [2018-12-08 16:37:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 112 transitions. [2018-12-08 16:37:40,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 16:37:40,730 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 16:37:41,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:41,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 75 states and 114 transitions. [2018-12-08 16:37:41,474 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 114 transitions. [2018-12-08 16:37:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 16:37:41,474 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:41,518 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-08 16:37:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 82 states and 129 transitions. [2018-12-08 16:37:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 129 transitions. [2018-12-08 16:37:42,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 16:37:42,429 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 16:37:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:37:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 16:37:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 16:37:43,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2018-12-08 16:37:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-12-08 16:37:43,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 16:37:43,463 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2018-12-08 16:37:43,468 INFO L779 CodeCheckObserver]: All specifications hold 11 specifications checked. All of them hold [2018-12-08 16:37:43,707 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-08 16:37:43,710 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,714 INFO L583 CodeCheckObserver]: Invariant with dag size 21 [2018-12-08 16:37:43,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,716 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,716 INFO L583 CodeCheckObserver]: Invariant with dag size 38 [2018-12-08 16:37:43,717 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,717 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,717 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,718 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,718 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,718 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,718 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,718 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,718 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,719 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,719 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,719 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,719 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,720 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,720 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,720 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,720 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,720 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 04:37:43 ImpRootNode [2018-12-08 16:37:43,721 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 16:37:43,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:37:43,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:37:43,721 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:37:43,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:37:32" (3/4) ... [2018-12-08 16:37:43,725 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 16:37:43,731 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-08 16:37:43,731 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 16:37:43,731 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 16:37:43,747 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((4 * array_size <= unknown-#length-unknown[a] && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 == \valid[a]) && a == 0) && 1 <= i [2018-12-08 16:37:43,747 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-08 16:37:43,747 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((4 * j + a + 4 <= unknown-#length-unknown[a] && 4 * array_size <= unknown-#length-unknown[a]) && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 <= j) && 1 == \valid[a]) && j <= 1) && a == 0) && 1 <= i) || (((((((4 * array_size <= unknown-#length-unknown[a] && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 0 <= j) && 1 == \valid[a]) && a == 0) && 1 <= i) && j < 1) && a + 8 <= unknown-#length-unknown[a])) || ((((((4 * j + a + 4 <= unknown-#length-unknown[a] && 4 * array_size <= unknown-#length-unknown[a]) && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 < j) && 1 == \valid[a]) && a == 0) && 2 <= i) [2018-12-08 16:37:43,761 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_39c277f7-485a-4944-b5a3-7a69b06ffd85/bin-2019/ukojak/witness.graphml [2018-12-08 16:37:43,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:37:43,762 INFO L168 Benchmark]: Toolchain (without parser) took 12187.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 239.1 MB). Free memory was 950.6 MB in the beginning and 1.2 GB in the end (delta: -261.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:37:43,763 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:37:43,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:37:43,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:37:43,764 INFO L168 Benchmark]: Boogie Preprocessor took 14.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:37:43,764 INFO L168 Benchmark]: RCFGBuilder took 223.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-08 16:37:43,764 INFO L168 Benchmark]: CodeCheck took 11641.51 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 120.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -135.8 MB). Peak memory consumption was 375.9 MB. Max. memory is 11.5 GB. [2018-12-08 16:37:43,764 INFO L168 Benchmark]: Witness Printer took 39.95 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.2 kB). Peak memory consumption was 86.2 kB. Max. memory is 11.5 GB. [2018-12-08 16:37:43,766 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, 33 locations, 11 error locations. SAFE Result, 11.3s OverallTime, 27 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 137887744 SDtfs, 103360384 SDslu, 87236694 SDs, 0 SdLazy, 1047238492 SolverSat, 346548634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2625 GetRequests, 2310 SyntacticMatches, 73 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26208 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 27367 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 20 PerfectInterpolantSequences, 81/89 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant [2018-12-08 16:37:43,767 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,767 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 543]: Loop Invariant [2018-12-08 16:37:43,767 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,768 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,768 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,768 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: (((4 * array_size <= unknown-#length-unknown[a] && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 == \valid[a]) && a == 0) && 1 <= i - InvariantResult [Line: 546]: Loop Invariant [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,769 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,770 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,770 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,770 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,770 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,771 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 16:37:43,771 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,771 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,771 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 16:37:43,771 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((((((((4 * j + a + 4 <= unknown-#length-unknown[a] && 4 * array_size <= unknown-#length-unknown[a]) && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 <= j) && 1 == \valid[a]) && j <= 1) && a == 0) && 1 <= i) || (((((((4 * array_size <= unknown-#length-unknown[a] && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 0 <= j) && 1 == \valid[a]) && a == 0) && 1 <= i) && j < 1) && a + 8 <= unknown-#length-unknown[a])) || ((((((4 * j + a + 4 <= unknown-#length-unknown[a] && 4 * array_size <= unknown-#length-unknown[a]) && \valid[__builtin_alloca (array_size * sizeof(int)) := 0] == \old(unknown-main_\old_#valid-unknown)) && 1 < j) && 1 == \valid[a]) && a == 0) && 2 <= i) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 242.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 223.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * CodeCheck took 11641.51 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 120.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -135.8 MB). Peak memory consumption was 375.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.95 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.2 kB). Peak memory consumption was 86.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #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 #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 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 #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...