./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/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 b2d654b7b73105d319f19561f723c76c3f2a6a70 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 18:31:09,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 18:31:09,448 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 18:31:09,454 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 18:31:09,454 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 18:31:09,454 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 18:31:09,455 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 18:31:09,456 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 18:31:09,457 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 18:31:09,457 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 18:31:09,458 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 18:31:09,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 18:31:09,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 18:31:09,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 18:31:09,459 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 18:31:09,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 18:31:09,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 18:31:09,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 18:31:09,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 18:31:09,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 18:31:09,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 18:31:09,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 18:31:09,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 18:31:09,465 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 18:31:09,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 18:31:09,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 18:31:09,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 18:31:09,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 18:31:09,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 18:31:09,468 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 18:31:09,468 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 18:31:09,469 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 18:31:09,469 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 18:31:09,469 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 18:31:09,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 18:31:09,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 18:31:09,470 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-08 18:31:09,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 18:31:09,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 18:31:09,478 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 18:31:09,478 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 18:31:09,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 18:31:09,478 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 18:31:09,478 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 18:31:09,479 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 18:31:09,480 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 18:31:09,480 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 18:31:09,480 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 18:31:09,480 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 18:31:09,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 18:31:09,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 18:31:09,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 18:31:09,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 18:31:09,480 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 18:31:09,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 18:31:09,481 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_646aed13-dc26-46a3-936e-518320b7615c/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 -> b2d654b7b73105d319f19561f723c76c3f2a6a70 [2018-12-08 18:31:09,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 18:31:09,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 18:31:09,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 18:31:09,511 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 18:31:09,511 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 18:31:09,511 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-12-08 18:31:09,549 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/data/7c407b4fd/1b19e615ef7443b0bb686662fe72e4f7/FLAGa49caa008 [2018-12-08 18:31:09,945 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 18:31:09,945 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-12-08 18:31:09,951 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/data/7c407b4fd/1b19e615ef7443b0bb686662fe72e4f7/FLAGa49caa008 [2018-12-08 18:31:10,309 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/data/7c407b4fd/1b19e615ef7443b0bb686662fe72e4f7 [2018-12-08 18:31:10,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 18:31:10,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 18:31:10,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 18:31:10,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 18:31:10,318 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 18:31:10,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9c013a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10, skipping insertion in model container [2018-12-08 18:31:10,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 18:31:10,342 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 18:31:10,491 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:31:10,498 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 18:31:10,562 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:31:10,585 INFO L195 MainTranslator]: Completed translation [2018-12-08 18:31:10,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10 WrapperNode [2018-12-08 18:31:10,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 18:31:10,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 18:31:10,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 18:31:10,586 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 18:31:10,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 18:31:10,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 18:31:10,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 18:31:10,616 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 18:31:10,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 18:31:10,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 18:31:10,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 18:31:10,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 18:31:10,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:31:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 18:31:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 18:31:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 18:31:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 18:31:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 18:31:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 18:31:10,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 18:31:10,888 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 18:31:10,888 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-08 18:31:10,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:31:10 BoogieIcfgContainer [2018-12-08 18:31:10,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 18:31:10,889 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 18:31:10,889 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 18:31:10,895 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 18:31:10,895 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:31:10" (1/1) ... [2018-12-08 18:31:10,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:31:10,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:10,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2018-12-08 18:31:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-12-08 18:31:10,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 18:31:10,925 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:11,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 30 states and 34 transitions. [2018-12-08 18:31:11,029 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-12-08 18:31:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 18:31:11,029 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2018-12-08 18:31:11,124 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-12-08 18:31:11,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 18:31:11,125 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:11,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2018-12-08 18:31:11,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-12-08 18:31:11,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 18:31:11,238 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:11,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:11,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2018-12-08 18:31:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-12-08 18:31:11,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 18:31:11,428 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:11,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:11,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2018-12-08 18:31:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-12-08 18:31:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 18:31:11,558 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2018-12-08 18:31:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-12-08 18:31:11,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 18:31:11,879 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:13,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2018-12-08 18:31:13,234 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2018-12-08 18:31:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 18:31:13,235 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:13,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2018-12-08 18:31:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2018-12-08 18:31:13,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 18:31:13,622 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:13,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:15,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 35 states and 45 transitions. [2018-12-08 18:31:15,543 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2018-12-08 18:31:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 18:31:15,543 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:15,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2018-12-08 18:31:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-12-08 18:31:15,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 18:31:15,789 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:16,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2018-12-08 18:31:16,564 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2018-12-08 18:31:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 18:31:16,564 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:16,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 36 states and 47 transitions. [2018-12-08 18:31:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2018-12-08 18:31:16,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 18:31:16,583 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2018-12-08 18:31:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2018-12-08 18:31:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 18:31:16,884 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 51 transitions. [2018-12-08 18:31:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2018-12-08 18:31:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 18:31:17,388 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:18,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 41 states and 53 transitions. [2018-12-08 18:31:18,811 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2018-12-08 18:31:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 18:31:18,812 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 18:31:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 39 states and 50 transitions. [2018-12-08 18:31:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2018-12-08 18:31:19,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 18:31:19,022 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:23,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2018-12-08 18:31:23,870 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2018-12-08 18:31:23,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 18:31:23,871 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:25,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 51 states and 69 transitions. [2018-12-08 18:31:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2018-12-08 18:31:25,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 18:31:25,774 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 18:31:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 55 states and 76 transitions. [2018-12-08 18:31:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions. [2018-12-08 18:31:26,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 18:31:26,789 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:27,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:32,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:32,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 62 states and 93 transitions. [2018-12-08 18:31:32,128 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 93 transitions. [2018-12-08 18:31:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 18:31:32,129 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:32,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:33,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 65 states and 105 transitions. [2018-12-08 18:31:33,444 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 105 transitions. [2018-12-08 18:31:33,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 18:31:33,444 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 66 states and 106 transitions. [2018-12-08 18:31:33,913 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 106 transitions. [2018-12-08 18:31:33,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-08 18:31:33,913 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:34,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:35,873 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2018-12-08 18:31:37,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:37,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 63 states and 104 transitions. [2018-12-08 18:31:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 104 transitions. [2018-12-08 18:31:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 18:31:37,771 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 18:31:38,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 59 states and 98 transitions. [2018-12-08 18:31:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 98 transitions. [2018-12-08 18:31:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 18:31:38,220 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:39,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:41,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:31:41,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 61 states and 106 transitions. [2018-12-08 18:31:41,585 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 106 transitions. [2018-12-08 18:31:41,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 18:31:41,585 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:31:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:31:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:31:45,408 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-08 18:31:46,829 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-12-08 18:31:49,920 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-12-08 18:31:57,147 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2018-12-08 18:32:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 71 states and 136 transitions. [2018-12-08 18:32:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 136 transitions. [2018-12-08 18:32:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 18:32:00,032 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:00,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 18:32:01,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 74 states and 141 transitions. [2018-12-08 18:32:01,907 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 141 transitions. [2018-12-08 18:32:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 18:32:01,907 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:04,226 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2018-12-08 18:32:05,461 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2018-12-08 18:32:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:32:21,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 84 states and 169 transitions. [2018-12-08 18:32:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 169 transitions. [2018-12-08 18:32:21,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 18:32:21,586 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-08 18:32:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 85 states and 170 transitions. [2018-12-08 18:32:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 170 transitions. [2018-12-08 18:32:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 18:32:22,404 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:22,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:32:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 86 states and 176 transitions. [2018-12-08 18:32:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 176 transitions. [2018-12-08 18:32:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 18:32:23,312 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-08 18:32:24,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:24,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 86 states and 175 transitions. [2018-12-08 18:32:24,091 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 175 transitions. [2018-12-08 18:32:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 18:32:24,091 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-08 18:32:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 87 states and 176 transitions. [2018-12-08 18:32:25,037 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 176 transitions. [2018-12-08 18:32:25,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 18:32:25,037 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-08 18:32:28,514 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2018-12-08 18:32:31,657 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2018-12-08 18:32:32,941 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-12-08 18:32:34,459 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-12-08 18:32:35,113 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-12-08 18:32:48,569 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2018-12-08 18:32:53,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 103 states and 223 transitions. [2018-12-08 18:32:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 223 transitions. [2018-12-08 18:32:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 18:32:53,676 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:53,694 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 18:32:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 106 states and 227 transitions. [2018-12-08 18:32:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 227 transitions. [2018-12-08 18:32:55,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 18:32:55,974 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-08 18:32:58,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:58,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 107 states and 230 transitions. [2018-12-08 18:32:58,543 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 230 transitions. [2018-12-08 18:32:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 18:32:58,544 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-08 18:32:59,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:32:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 107 states and 229 transitions. [2018-12-08 18:32:59,798 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 229 transitions. [2018-12-08 18:32:59,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 18:32:59,798 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:32:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 18:33:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:33:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 108 states and 231 transitions. [2018-12-08 18:33:01,417 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 231 transitions. [2018-12-08 18:33:01,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 18:33:01,418 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:33:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:33:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:33:11,433 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2018-12-08 18:33:16,590 WARN L180 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-12-08 18:33:38,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:33:38,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 124 states and 276 transitions. [2018-12-08 18:33:38,978 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 276 transitions. [2018-12-08 18:33:38,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 18:33:38,979 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:33:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:33:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:33:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:33:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 125 states and 281 transitions. [2018-12-08 18:33:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 281 transitions. [2018-12-08 18:33:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 18:33:40,829 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:33:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:33:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 18:33:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:33:41,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 125 states and 280 transitions. [2018-12-08 18:33:41,882 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 280 transitions. [2018-12-08 18:33:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 18:33:41,882 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:33:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:33:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:33:48,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:33:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 131 states and 294 transitions. [2018-12-08 18:33:48,339 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 294 transitions. [2018-12-08 18:33:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 18:33:48,339 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:33:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:33:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 18:33:49,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:33:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 132 states and 295 transitions. [2018-12-08 18:33:49,757 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2018-12-08 18:33:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 18:33:49,758 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:33:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:33:50,044 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 18:33:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:33:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 138 states and 314 transitions. [2018-12-08 18:33:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 314 transitions. [2018-12-08 18:33:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 18:33:59,659 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:33:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:33:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 18:34:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 138 states and 311 transitions. [2018-12-08 18:34:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 311 transitions. [2018-12-08 18:34:01,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 18:34:01,369 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-08 18:34:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:03,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 139 states and 314 transitions. [2018-12-08 18:34:03,542 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 314 transitions. [2018-12-08 18:34:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 18:34:03,542 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:11,035 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:34:18,391 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-08 18:34:21,196 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2018-12-08 18:34:25,617 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-12-08 18:34:36,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 144 states and 330 transitions. [2018-12-08 18:34:36,099 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 330 transitions. [2018-12-08 18:34:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 18:34:36,100 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:34:39,163 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2018-12-08 18:34:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 150 states and 352 transitions. [2018-12-08 18:34:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 352 transitions. [2018-12-08 18:34:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 18:34:45,647 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:34:47,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 151 states and 358 transitions. [2018-12-08 18:34:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 358 transitions. [2018-12-08 18:34:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 18:34:47,259 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:34:52,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:52,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 153 states and 361 transitions. [2018-12-08 18:34:52,582 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 361 transitions. [2018-12-08 18:34:52,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 18:34:52,582 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:34:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 154 states and 364 transitions. [2018-12-08 18:34:55,054 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 364 transitions. [2018-12-08 18:34:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-08 18:34:55,054 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:34:57,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:34:57,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 155 states and 367 transitions. [2018-12-08 18:34:57,857 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 367 transitions. [2018-12-08 18:34:57,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 18:34:57,857 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:34:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:34:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 18:35:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:35:07,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 160 states and 380 transitions. [2018-12-08 18:35:07,301 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 380 transitions. [2018-12-08 18:35:07,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 18:35:07,301 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:35:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:35:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 18:35:12,299 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2018-12-08 18:35:15,697 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-08 18:35:22,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:35:22,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 167 states and 400 transitions. [2018-12-08 18:35:22,280 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 400 transitions. [2018-12-08 18:35:22,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 18:35:22,280 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:35:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:35:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 18:35:25,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:35:25,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 168 states and 403 transitions. [2018-12-08 18:35:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 403 transitions. [2018-12-08 18:35:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-08 18:35:25,194 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 18:35:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:35:31,330 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-08 18:35:44,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 18:35:44,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 47 states and 84 transitions. [2018-12-08 18:35:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2018-12-08 18:35:44,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 18:35:44,283 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 56 iterations. [2018-12-08 18:35:44,290 INFO L779 CodeCheckObserver]: All specifications hold 15 specifications checked. All of them hold [2018-12-08 18:35:44,804 WARN L180 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2018-12-08 18:35:45,573 WARN L180 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2018-12-08 18:35:47,059 WARN L180 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-12-08 18:35:48,034 WARN L180 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2018-12-08 18:35:48,710 WARN L180 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2018-12-08 18:35:49,224 WARN L180 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-12-08 18:35:49,242 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-08 18:35:49,249 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,258 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,259 INFO L583 CodeCheckObserver]: Invariant with dag size 49 [2018-12-08 18:35:49,264 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,264 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,265 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,265 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,265 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,266 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,266 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,266 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,267 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,268 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,268 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,269 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,271 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,272 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,272 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,272 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,273 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,273 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,273 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,273 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,274 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,274 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,274 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,274 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,275 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,275 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,276 INFO L583 CodeCheckObserver]: Invariant with dag size 15 [2018-12-08 18:35:49,276 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,277 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 06:35:49 ImpRootNode [2018-12-08 18:35:49,277 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 18:35:49,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 18:35:49,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 18:35:49,278 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 18:35:49,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:31:10" (3/4) ... [2018-12-08 18:35:49,281 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 18:35:49,288 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-08 18:35:49,288 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 18:35:49,288 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 18:35:49,305 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s2]) && 1 == \valid[s1]) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 <= s1) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 1 <= s2) || ((((((((((s1 == 0 && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 <= 0) && 0 <= s2) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 <= unknown-#length-unknown[s1]) && 1 == \valid[s2]) && 1 == \valid[s1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) [2018-12-08 18:35:49,305 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) [2018-12-08 18:35:49,305 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-08 18:35:49,317 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_646aed13-dc26-46a3-936e-518320b7615c/bin-2019/ukojak/witness.graphml [2018-12-08 18:35:49,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 18:35:49,318 INFO L168 Benchmark]: Toolchain (without parser) took 279002.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 956.0 MB in the beginning and 682.0 MB in the end (delta: 274.0 MB). Peak memory consumption was 386.7 MB. Max. memory is 11.5 GB. [2018-12-08 18:35:49,318 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:35:49,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-08 18:35:49,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 18:35:49,319 INFO L168 Benchmark]: Boogie Preprocessor took 19.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:35:49,319 INFO L168 Benchmark]: RCFGBuilder took 252.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-12-08 18:35:49,319 INFO L168 Benchmark]: CodeCheck took 278388.74 ms. Allocated memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: -11.0 MB). Free memory was 1.1 GB in the beginning and 682.0 MB in the end (delta: 390.4 MB). Peak memory consumption was 380.1 MB. Max. memory is 11.5 GB. [2018-12-08 18:35:49,320 INFO L168 Benchmark]: Witness Printer took 39.44 ms. Allocated memory is still 1.1 GB. Free memory was 682.0 MB in the beginning and 682.0 MB in the end (delta: 2.1 kB). Peak memory consumption was 2.1 kB. Max. memory is 11.5 GB. [2018-12-08 18:35:49,321 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, 41 locations, 15 error locations. SAFE Result, 273.3s OverallTime, 56 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 894411708 SDslu, -790187840 SDs, 0 SdLazy, -494182366 SolverSat, -1247786958 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11519 GetRequests, 10217 SyntacticMatches, 442 SemanticMatches, 860 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343043 ImplicationChecksByTransitivity, 269.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 39.9s InterpolantComputationTime, 991 NumberOfCodeBlocks, 991 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 936 ConstructedInterpolants, 0 QuantifiedInterpolants, 362644 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 55 InterpolantComputations, 26 PerfectInterpolantSequences, 294/966 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 553]: Loop Invariant [2018-12-08 18:35:49,322 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,323 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 545]: Loop Invariant [2018-12-08 18:35:49,324 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,324 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,330 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,331 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,331 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,331 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,331 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,331 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,331 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,331 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,332 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,332 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,332 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,332 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,333 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,333 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,333 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,334 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,334 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,334 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,334 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,334 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,334 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,335 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,335 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,335 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 18:35:49,335 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 18:35:49,335 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((((\old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 == \valid[s2]) && 1 == \valid[s1]) && s1 + 1 <= unknown-#length-unknown[s1]) && 1 <= s1) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) && 1 <= s2) || ((((((((((s1 == 0 && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]]) && 0 == unknown-#memory_int-unknown[s1][unknown-#length-unknown[s1] + -1]) && s2 <= 0) && 0 <= s2) && s2 + 1 <= unknown-#length-unknown[s2]) && 1 <= unknown-#length-unknown[s1]) && 1 == \valid[s2]) && 1 == \valid[s1]) && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && 0 == unknown-#memory_int-unknown[s2][unknown-#length-unknown[s2] + -1]) - InvariantResult [Line: 540]: Loop Invariant [2018-12-08 18:35:49,336 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 18:35:49,336 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length2 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char)) := 0][__builtin_alloca (length2 * sizeof(char))]][__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char))) * 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 252.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * CodeCheck took 278388.74 ms. Allocated memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: -11.0 MB). Free memory was 1.1 GB in the beginning and 682.0 MB in the end (delta: 390.4 MB). Peak memory consumption was 380.1 MB. Max. memory is 11.5 GB. * Witness Printer took 39.44 ms. Allocated memory is still 1.1 GB. Free memory was 682.0 MB in the beginning and 682.0 MB in the end (delta: 2.1 kB). Peak memory consumption was 2.1 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...