./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset2_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_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/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 89c40e0e226fdcfbda8631272bf2c238348d58a6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 11:36:55,413 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:36:55,415 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:36:55,421 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:36:55,421 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:36:55,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:36:55,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:36:55,424 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:36:55,425 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:36:55,426 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:36:55,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:36:55,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:36:55,427 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:36:55,428 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:36:55,429 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:36:55,429 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:36:55,430 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:36:55,431 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:36:55,432 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:36:55,433 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:36:55,434 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:36:55,435 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:36:55,436 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:36:55,437 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:36:55,437 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:36:55,437 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:36:55,438 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:36:55,439 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:36:55,439 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:36:55,440 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:36:55,440 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:36:55,441 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:36:55,441 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:36:55,441 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:36:55,441 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:36:55,442 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:36:55,442 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 11:36:55,452 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:36:55,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:36:55,453 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:36:55,453 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:36:55,454 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:36:55,454 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:36:55,454 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:36:55,454 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:36:55,454 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:36:55,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:36:55,455 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 11:36:55,455 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 11:36:55,455 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 11:36:55,455 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:36:55,455 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:36:55,455 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:36:55,456 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 11:36:55,456 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 11:36:55,456 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:36:55,456 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:36:55,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 11:36:55,456 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:36:55,457 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:36:55,457 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 11:36:55,457 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:36:55,457 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_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/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 -> 89c40e0e226fdcfbda8631272bf2c238348d58a6 [2018-11-18 11:36:55,481 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:36:55,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:36:55,493 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:36:55,494 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:36:55,494 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:36:55,494 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2018-11-18 11:36:55,529 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/data/bdfcce6d0/db300e53cb9344d8a207d1609924f148/FLAG8e38858b7 [2018-11-18 11:36:55,927 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:36:55,928 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/sv-benchmarks/c/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2018-11-18 11:36:55,932 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/data/bdfcce6d0/db300e53cb9344d8a207d1609924f148/FLAG8e38858b7 [2018-11-18 11:36:55,941 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/data/bdfcce6d0/db300e53cb9344d8a207d1609924f148 [2018-11-18 11:36:55,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:36:55,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:36:55,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:36:55,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:36:55,947 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:36:55,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:55" (1/1) ... [2018-11-18 11:36:55,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e791d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:55, skipping insertion in model container [2018-11-18 11:36:55,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:36:55" (1/1) ... [2018-11-18 11:36:55,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:36:55,968 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:36:56,073 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:36:56,078 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:36:56,087 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:36:56,095 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:36:56,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56 WrapperNode [2018-11-18 11:36:56,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:36:56,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:36:56,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:36:56,096 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:36:56,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:36:56,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:36:56,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:36:56,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:36:56,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:36:56,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:36:56,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:36:56,130 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:36:56,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:36:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/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 11:36:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:36:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:36:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:36:56,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:36:56,352 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:36:56,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:56 BoogieIcfgContainer [2018-11-18 11:36:56,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:36:56,353 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 11:36:56,353 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 11:36:56,362 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 11:36:56,362 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:56" (1/1) ... [2018-11-18 11:36:56,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:36:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-11-18 11:36:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-11-18 11:36:56,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-11-18 11:36:56,408 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:56,521 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 11:36:56,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:56,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-11-18 11:36:56,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-11-18 11:36:56,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-18 11:36:56,555 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:56,624 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 11:36:56,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-11-18 11:36:56,733 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-11-18 11:36:56,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 11:36:56,733 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:56,769 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 11:36:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-11-18 11:36:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-11-18 11:36:56,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 11:36:56,970 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,005 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 11:36:57,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-11-18 11:36:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-11-18 11:36:57,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 11:36:57,088 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,123 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 11:36:57,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-11-18 11:36:57,182 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-11-18 11:36:57,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 11:36:57,182 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,208 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 11:36:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-11-18 11:36:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-11-18 11:36:57,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 11:36:57,262 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,305 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 11:36:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-11-18 11:36:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-11-18 11:36:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 11:36:57,375 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,412 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 11:36:57,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-11-18 11:36:57,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-11-18 11:36:57,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:36:57,470 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,505 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 11:36:57,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-18 11:36:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 11:36:57,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 11:36:57,571 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,635 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 11:36:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-11-18 11:36:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-18 11:36:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 11:36:57,712 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,751 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 11:36:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-11-18 11:36:57,831 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-18 11:36:57,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:36:57,831 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,880 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 11:36:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-11-18 11:36:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-18 11:36:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 11:36:57,958 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:57,996 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 11:36:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-11-18 11:36:58,058 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 11:36:58,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 11:36:58,058 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:58,101 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 11:36:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-11-18 11:36:58,177 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 11:36:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 11:36:58,177 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:58,220 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 11:36:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-11-18 11:36:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 11:36:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 11:36:58,307 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:58,351 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 11:36:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-11-18 11:36:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 11:36:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 11:36:58,431 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:58,473 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 11:36:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-11-18 11:36:58,543 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 11:36:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:36:58,544 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:58,603 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 11:36:58,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2018-11-18 11:36:58,689 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-18 11:36:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:36:58,689 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:58,734 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 11:36:58,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-11-18 11:36:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-18 11:36:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 11:36:58,822 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:58,867 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 11:36:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:58,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-11-18 11:36:58,972 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-18 11:36:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 11:36:58,972 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:59,035 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 11:36:59,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:59,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-11-18 11:36:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-11-18 11:36:59,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:36:59,129 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:59,178 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 11:36:59,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:59,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-11-18 11:36:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-11-18 11:36:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:36:59,283 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:59,333 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 11:36:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-11-18 11:36:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-18 11:36:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:36:59,439 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:59,489 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 11:36:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2018-11-18 11:36:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-11-18 11:36:59,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 11:36:59,592 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:59,640 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 11:36:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2018-11-18 11:36:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-11-18 11:36:59,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 11:36:59,752 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:59,807 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 11:36:59,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:36:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2018-11-18 11:36:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-11-18 11:36:59,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:36:59,928 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:36:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:36:59,983 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 11:37:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2018-11-18 11:37:00,126 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-18 11:37:00,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 11:37:00,126 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:00,178 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 11:37:00,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:00,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2018-11-18 11:37:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-18 11:37:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 11:37:00,292 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:00,348 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 11:37:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2018-11-18 11:37:00,465 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 11:37:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 11:37:00,465 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:00,522 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 11:37:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:00,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2018-11-18 11:37:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-18 11:37:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 11:37:00,645 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:00,699 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 11:37:00,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:00,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2018-11-18 11:37:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-11-18 11:37:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 11:37:00,826 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:00,880 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 11:37:01,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2018-11-18 11:37:01,019 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-11-18 11:37:01,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 11:37:01,019 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:01,086 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 11:37:01,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2018-11-18 11:37:01,256 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-11-18 11:37:01,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 11:37:01,256 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:01,337 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 11:37:01,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2018-11-18 11:37:01,457 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 11:37:01,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 11:37:01,457 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:01,541 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 11:37:01,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2018-11-18 11:37:01,670 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-11-18 11:37:01,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 11:37:01,670 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:01,753 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 11:37:01,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:01,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2018-11-18 11:37:01,884 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 11:37:01,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 11:37:01,884 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:01,968 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 11:37:02,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:02,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2018-11-18 11:37:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-11-18 11:37:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 11:37:02,123 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:02,202 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 11:37:02,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2018-11-18 11:37:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-11-18 11:37:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 11:37:02,340 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:02,418 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 11:37:02,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2018-11-18 11:37:02,565 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-11-18 11:37:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 11:37:02,565 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:02,643 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 11:37:02,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2018-11-18 11:37:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-11-18 11:37:02,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 11:37:02,793 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:02,871 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 11:37:03,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:03,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2018-11-18 11:37:03,006 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2018-11-18 11:37:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 11:37:03,007 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:03,112 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 11:37:03,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 47 states and 48 transitions. [2018-11-18 11:37:03,253 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-11-18 11:37:03,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 11:37:03,253 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 11:37:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:37:03,443 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 11:37:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 11:37:12,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 46 states and 47 transitions. [2018-11-18 11:37:12,910 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2018-11-18 11:37:12,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:37:12,911 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 44 iterations. [2018-11-18 11:37:12,917 INFO L775 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-11-18 11:37:12,994 INFO L579 CodeCheckObserver]: Invariant with dag size 11 [2018-11-18 11:37:12,997 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:12,998 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:12,998 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,001 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,001 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,001 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,002 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 11:37:13,002 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,002 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 11:37:13 ImpRootNode [2018-11-18 11:37:13,003 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 11:37:13,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:37:13,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:37:13,003 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:37:13,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:36:56" (3/4) ... [2018-11-18 11:37:13,006 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:37:13,012 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 11:37:13,012 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 11:37:13,012 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:37:13,012 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:37:13,028 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 11:37:13,028 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-11-18 11:37:13,035 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_eb52defc-c1fd-4851-a6b1-0e8c5f1b9a17/bin-2019/ukojak/witness.graphml [2018-11-18 11:37:13,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:37:13,035 INFO L168 Benchmark]: Toolchain (without parser) took 17092.05 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 358.1 MB). Free memory was 959.1 MB in the beginning and 874.2 MB in the end (delta: 85.0 MB). Peak memory consumption was 443.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:37:13,036 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:37:13,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:37:13,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.71 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:37:13,037 INFO L168 Benchmark]: Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:37:13,038 INFO L168 Benchmark]: RCFGBuilder took 222.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:37:13,038 INFO L168 Benchmark]: CodeCheck took 16649.81 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.2 MB). Free memory was 1.1 GB in the beginning and 874.2 MB in the end (delta: 235.7 MB). Peak memory consumption was 466.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:37:13,038 INFO L168 Benchmark]: Witness Printer took 31.98 ms. Allocated memory is still 1.4 GB. Free memory is still 874.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:37:13,040 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, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10846 GetRequests, 9636 SyntacticMatches, 858 SemanticMatches, 352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51854 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s 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 11:37:13,041 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,041 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,041 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,042 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,042 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,042 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 11:37:13,042 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 11:37:13,043 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 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 21.71 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 222.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * CodeCheck took 16649.81 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 231.2 MB). Free memory was 1.1 GB in the beginning and 874.2 MB in the end (delta: 235.7 MB). Peak memory consumption was 466.9 MB. Max. memory is 11.5 GB. * Witness Printer took 31.98 ms. Allocated memory is still 1.4 GB. Free memory is still 874.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable 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...