./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/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 c0ea593d74670c91cacf864f376c3b9b3ea0d491 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:09:00,413 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:09:00,414 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:09:00,420 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:09:00,420 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:09:00,421 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:09:00,421 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:09:00,423 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:09:00,424 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:09:00,424 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:09:00,425 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:09:00,425 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:09:00,426 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:09:00,426 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:09:00,427 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:09:00,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:09:00,428 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:09:00,429 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:09:00,430 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:09:00,431 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:09:00,432 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:09:00,432 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:09:00,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:09:00,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:09:00,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:09:00,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:09:00,434 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:09:00,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:09:00,435 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:09:00,436 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:09:00,436 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:09:00,437 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:09:00,437 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:09:00,437 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:09:00,438 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:09:00,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:09:00,438 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 10:09:00,447 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:09:00,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:09:00,448 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:09:00,448 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:09:00,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:09:00,448 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:09:00,448 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:09:00,449 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:09:00,450 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:09:00,450 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 10:09:00,450 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 10:09:00,450 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:09:00,450 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:09:00,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 10:09:00,450 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:09:00,450 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:09:00,451 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 10:09:00,451 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:09:00,451 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_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/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 -> c0ea593d74670c91cacf864f376c3b9b3ea0d491 [2018-11-18 10:09:00,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:09:00,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:09:00,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:09:00,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:09:00,487 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:09:00,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c [2018-11-18 10:09:00,524 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/data/cca44c6ae/24254d0a0a5c4dd382233cd84bc6e965/FLAG2812b5ce6 [2018-11-18 10:09:00,935 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:09:00,935 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/sv-benchmarks/c/ldv-memsafety/memsetNonZero2_true-valid-memsafety_true-termination.c [2018-11-18 10:09:00,940 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/data/cca44c6ae/24254d0a0a5c4dd382233cd84bc6e965/FLAG2812b5ce6 [2018-11-18 10:09:00,951 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/data/cca44c6ae/24254d0a0a5c4dd382233cd84bc6e965 [2018-11-18 10:09:00,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:09:00,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:09:00,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:09:00,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:09:00,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:09:00,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:09:00" (1/1) ... [2018-11-18 10:09:00,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f4c8aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:00, skipping insertion in model container [2018-11-18 10:09:00,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:09:00" (1/1) ... [2018-11-18 10:09:00,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:09:00,978 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:09:01,076 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:09:01,081 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:09:01,091 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:09:01,099 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:09:01,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01 WrapperNode [2018-11-18 10:09:01,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:09:01,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:09:01,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:09:01,100 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:09:01,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:09:01,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:09:01,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:09:01,121 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:09:01,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:09:01,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:09:01,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:09:01,133 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:09:01,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:09:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/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 [2018-11-18 10:09:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:09:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:09:01,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:09:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:09:01,329 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:09:01,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:09:01 BoogieIcfgContainer [2018-11-18 10:09:01,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:09:01,330 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 10:09:01,330 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 10:09:01,336 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 10:09:01,336 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:09:01" (1/1) ... [2018-11-18 10:09:01,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:09:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-18 10:09:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-18 10:09:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-11-18 10:09:01,372 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:01,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:01,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-11-18 10:09:01,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-11-18 10:09:01,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-18 10:09:01,477 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:01,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:01,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:01,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-11-18 10:09:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-11-18 10:09:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 10:09:01,651 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:01,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:01,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-11-18 10:09:01,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-11-18 10:09:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 10:09:01,869 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:01,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-18 10:09:01,956 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-18 10:09:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 10:09:01,956 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-11-18 10:09:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-11-18 10:09:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 10:09:02,072 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-11-18 10:09:02,169 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-11-18 10:09:02,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:09:02,169 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-11-18 10:09:02,277 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-11-18 10:09:02,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:09:02,277 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,308 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-11-18 10:09:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-11-18 10:09:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:09:02,363 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-18 10:09:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 10:09:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 10:09:02,459 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-11-18 10:09:02,616 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-18 10:09:02,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 10:09:02,616 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,648 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-11-18 10:09:02,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-18 10:09:02,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 10:09:02,716 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-11-18 10:09:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-18 10:09:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 10:09:02,829 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:02,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-11-18 10:09:02,936 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 10:09:02,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 10:09:02,936 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:02,973 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:03,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-11-18 10:09:03,052 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 10:09:03,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 10:09:03,052 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:03,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-11-18 10:09:03,200 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 10:09:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 10:09:03,200 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:03,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-11-18 10:09:03,312 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 10:09:03,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 10:09:03,312 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:03,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:03,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-11-18 10:09:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 10:09:03,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 10:09:03,437 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:03,492 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:03,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:03,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2018-11-18 10:09:03,599 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-18 10:09:03,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:09:03,599 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-11-18 10:09:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-18 10:09:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:09:03,773 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:03,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-11-18 10:09:03,912 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-18 10:09:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:09:03,913 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:04,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-11-18 10:09:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-11-18 10:09:04,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 10:09:04,089 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:04,155 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:04,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-11-18 10:09:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-11-18 10:09:04,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 10:09:04,276 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:04,335 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:04,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-11-18 10:09:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-18 10:09:04,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 10:09:04,441 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2018-11-18 10:09:04,603 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-11-18 10:09:04,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 10:09:04,604 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:04,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2018-11-18 10:09:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-11-18 10:09:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 10:09:04,826 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2018-11-18 10:09:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-11-18 10:09:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 10:09:05,041 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,162 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:05,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2018-11-18 10:09:05,292 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-18 10:09:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 10:09:05,293 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:05,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2018-11-18 10:09:05,458 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-18 10:09:05,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 10:09:05,458 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,510 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:05,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2018-11-18 10:09:05,625 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 10:09:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 10:09:05,626 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,679 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:05,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2018-11-18 10:09:05,797 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-18 10:09:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 10:09:05,797 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:05,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2018-11-18 10:09:05,965 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-11-18 10:09:05,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 10:09:05,965 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:06,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2018-11-18 10:09:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-11-18 10:09:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 10:09:06,171 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,239 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:06,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:06,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2018-11-18 10:09:06,386 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-11-18 10:09:06,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 10:09:06,386 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:06,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2018-11-18 10:09:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 10:09:06,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 10:09:06,590 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2018-11-18 10:09:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-11-18 10:09:06,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 10:09:06,802 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:07,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:07,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2018-11-18 10:09:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 10:09:07,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 10:09:07,006 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2018-11-18 10:09:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-11-18 10:09:07,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 10:09:07,214 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2018-11-18 10:09:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-11-18 10:09:07,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 10:09:07,428 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:07,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2018-11-18 10:09:07,654 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-11-18 10:09:07,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 10:09:07,654 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2018-11-18 10:09:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-11-18 10:09:07,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 10:09:07,863 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2018-11-18 10:09:08,090 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2018-11-18 10:09:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 10:09:08,090 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:08,168 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:09:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 47 states and 48 transitions. [2018-11-18 10:09:08,305 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-11-18 10:09:08,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 10:09:08,305 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 10:09:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:09:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2018-11-18 10:09:17,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 10:09:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 46 states and 47 transitions. [2018-11-18 10:09:17,939 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2018-11-18 10:09:17,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:09:17,939 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 44 iterations. [2018-11-18 10:09:17,944 INFO L775 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-11-18 10:09:18,022 INFO L579 CodeCheckObserver]: Invariant with dag size 11 [2018-11-18 10:09:18,025 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,026 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,026 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,029 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,029 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,029 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,030 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 10:09:18,030 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,030 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 10:09:18 ImpRootNode [2018-11-18 10:09:18,031 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 10:09:18,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:09:18,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:09:18,031 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:09:18,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:09:01" (3/4) ... [2018-11-18 10:09:18,034 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:09:18,040 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 10:09:18,040 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 10:09:18,040 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 10:09:18,040 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:09:18,055 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] [2018-11-18 10:09:18,056 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-11-18 10:09:18,061 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_468f2c14-d71e-4289-b11c-bbcaf2b80fe7/bin-2019/ukojak/witness.graphml [2018-11-18 10:09:18,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:09:18,062 INFO L168 Benchmark]: Toolchain (without parser) took 17108.13 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 373.3 MB). Free memory was 961.9 MB in the beginning and 1.2 GB in the end (delta: -213.1 MB). Peak memory consumption was 160.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:18,063 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:09:18,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.41 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:18,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:18,064 INFO L168 Benchmark]: Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:09:18,064 INFO L168 Benchmark]: RCFGBuilder took 196.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:18,064 INFO L168 Benchmark]: CodeCheck took 16700.95 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 237.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.4 MB). Peak memory consumption was 178.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:09:18,065 INFO L168 Benchmark]: Witness Printer took 30.85 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:09:18,066 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, 12 locations, 3 error locations. SAFE Result, 16.5s OverallTime, 44 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 650 SolverSat, 166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10846 GetRequests, 9636 SyntacticMatches, 858 SemanticMatches, 352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51854 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 987 ConstructedInterpolants, 0 QuantifiedInterpolants, 173269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 4 PerfectInterpolantSequences, 820/11480 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant [2018-11-18 10:09:18,067 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,068 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,068 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,068 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,068 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,068 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] - InvariantResult [Line: 20]: Loop Invariant [2018-11-18 10:09:18,068 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 10:09:18,068 WARN L1239 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 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.41 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 196.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * CodeCheck took 16700.95 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 237.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.4 MB). Peak memory consumption was 178.6 MB. Max. memory is 11.5 GB. * Witness Printer took 30.85 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...