./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/byte_add_false-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add_false-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a2c46755d0cb80f6b2e7b990e0a1bd9a49737b84 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:56:02,187 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:56:02,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:56:02,194 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:56:02,194 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:56:02,195 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:56:02,196 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:56:02,197 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:56:02,198 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:56:02,198 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:56:02,199 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:56:02,199 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:56:02,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:56:02,200 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:56:02,201 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:56:02,201 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:56:02,202 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:56:02,203 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:56:02,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:56:02,204 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:56:02,205 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:56:02,206 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:56:02,207 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:56:02,207 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:56:02,207 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:56:02,208 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:56:02,208 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:56:02,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:56:02,209 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:56:02,210 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:56:02,210 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:56:02,210 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:56:02,210 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:56:02,211 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:56:02,211 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:56:02,212 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:56:02,212 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-18 16:56:02,219 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:56:02,220 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:56:02,220 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:56:02,220 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:56:02,221 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:56:02,221 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:56:02,221 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:56:02,221 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:56:02,221 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 16:56:02,222 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:56:02,223 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:56:02,223 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:56:02,223 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:56:02,223 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 16:56:02,223 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 16:56:02,223 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:56:02,223 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:56:02,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 16:56:02,224 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:56:02,224 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:56:02,224 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:56:02,224 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 16:56:02,224 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:56:02,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:56:02,225 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_efd1e277-4a8d-46ba-8f7c-07443bba5dad/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 ! overflow) ) 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 -> a2c46755d0cb80f6b2e7b990e0a1bd9a49737b84 [2018-11-18 16:56:02,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:56:02,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:56:02,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:56:02,260 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:56:02,261 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:56:02,261 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/byte_add_false-unreach-call_true-no-overflow_true-termination.i [2018-11-18 16:56:02,305 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/data/1b025ccca/49e355c887fc4a27a3e3c8317ad97508/FLAG693104210 [2018-11-18 16:56:02,710 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:56:02,711 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/sv-benchmarks/c/bitvector/byte_add_false-unreach-call_true-no-overflow_true-termination.i [2018-11-18 16:56:02,715 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/data/1b025ccca/49e355c887fc4a27a3e3c8317ad97508/FLAG693104210 [2018-11-18 16:56:02,723 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/data/1b025ccca/49e355c887fc4a27a3e3c8317ad97508 [2018-11-18 16:56:02,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:56:02,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:56:02,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:56:02,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:56:02,730 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:56:02,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02, skipping insertion in model container [2018-11-18 16:56:02,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:56:02,761 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:56:02,884 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:56:02,886 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:56:02,907 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:56:02,916 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:56:02,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02 WrapperNode [2018-11-18 16:56:02,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:56:02,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:56:02,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:56:02,917 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:56:02,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:56:02,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:56:02,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:56:02,977 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:56:02,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... [2018-11-18 16:56:02,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:56:02,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:56:02,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:56:02,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:56:02,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 16:56:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:56:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:56:03,430 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:56:03,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:03 BoogieIcfgContainer [2018-11-18 16:56:03,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:56:03,431 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 16:56:03,432 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 16:56:03,440 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 16:56:03,440 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:03" (1/1) ... [2018-11-18 16:56:03,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:03,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 97 states and 116 transitions. [2018-11-18 16:56:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 116 transitions. [2018-11-18 16:56:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-18 16:56:03,474 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 96 states and 115 transitions. [2018-11-18 16:56:03,553 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 115 transitions. [2018-11-18 16:56:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 16:56:03,554 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 95 states and 114 transitions. [2018-11-18 16:56:03,568 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 114 transitions. [2018-11-18 16:56:03,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 16:56:03,568 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 94 states and 113 transitions. [2018-11-18 16:56:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 113 transitions. [2018-11-18 16:56:03,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 16:56:03,584 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 93 states and 112 transitions. [2018-11-18 16:56:03,600 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2018-11-18 16:56:03,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 16:56:03,601 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 92 states and 111 transitions. [2018-11-18 16:56:03,618 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 111 transitions. [2018-11-18 16:56:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 16:56:03,618 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 91 states and 110 transitions. [2018-11-18 16:56:03,635 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2018-11-18 16:56:03,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 16:56:03,636 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 90 states and 109 transitions. [2018-11-18 16:56:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 109 transitions. [2018-11-18 16:56:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 16:56:03,652 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 89 states and 106 transitions. [2018-11-18 16:56:03,666 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2018-11-18 16:56:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 16:56:03,667 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 105 transitions. [2018-11-18 16:56:03,683 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2018-11-18 16:56:03,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 16:56:03,683 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 87 states and 104 transitions. [2018-11-18 16:56:03,697 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2018-11-18 16:56:03,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:56:03,698 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 86 states and 103 transitions. [2018-11-18 16:56:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 103 transitions. [2018-11-18 16:56:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:56:03,713 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 85 states and 102 transitions. [2018-11-18 16:56:03,729 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 102 transitions. [2018-11-18 16:56:03,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 16:56:03,730 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 84 states and 101 transitions. [2018-11-18 16:56:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2018-11-18 16:56:03,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:56:03,743 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 83 states and 100 transitions. [2018-11-18 16:56:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2018-11-18 16:56:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:56:03,756 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 82 states and 99 transitions. [2018-11-18 16:56:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2018-11-18 16:56:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:56:03,768 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 81 states and 98 transitions. [2018-11-18 16:56:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2018-11-18 16:56:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:56:03,781 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 80 states and 97 transitions. [2018-11-18 16:56:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2018-11-18 16:56:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:56:03,795 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 79 states and 96 transitions. [2018-11-18 16:56:03,806 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 96 transitions. [2018-11-18 16:56:03,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:56:03,809 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 78 states and 95 transitions. [2018-11-18 16:56:03,819 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 95 transitions. [2018-11-18 16:56:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 16:56:03,819 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 77 states and 94 transitions. [2018-11-18 16:56:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2018-11-18 16:56:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:56:03,830 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 76 states and 93 transitions. [2018-11-18 16:56:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2018-11-18 16:56:03,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:56:03,840 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 75 states and 92 transitions. [2018-11-18 16:56:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2018-11-18 16:56:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:56:03,851 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 74 states and 91 transitions. [2018-11-18 16:56:03,862 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-11-18 16:56:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:56:03,863 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 73 states and 90 transitions. [2018-11-18 16:56:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-11-18 16:56:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:56:03,872 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 72 states and 89 transitions. [2018-11-18 16:56:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-11-18 16:56:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:56:03,882 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 71 states and 88 transitions. [2018-11-18 16:56:03,891 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-11-18 16:56:03,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 16:56:03,892 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 70 states and 87 transitions. [2018-11-18 16:56:03,900 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2018-11-18 16:56:03,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:56:03,900 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 69 states and 86 transitions. [2018-11-18 16:56:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2018-11-18 16:56:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:56:03,909 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 68 states and 85 transitions. [2018-11-18 16:56:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2018-11-18 16:56:03,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:56:03,919 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 67 states and 84 transitions. [2018-11-18 16:56:03,927 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 84 transitions. [2018-11-18 16:56:03,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:56:03,928 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 66 states and 83 transitions. [2018-11-18 16:56:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2018-11-18 16:56:03,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 16:56:03,937 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 65 states and 82 transitions. [2018-11-18 16:56:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2018-11-18 16:56:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 16:56:03,946 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 64 states and 81 transitions. [2018-11-18 16:56:03,954 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2018-11-18 16:56:03,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 16:56:03,955 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 63 states and 80 transitions. [2018-11-18 16:56:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2018-11-18 16:56:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 16:56:03,963 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 62 states and 79 transitions. [2018-11-18 16:56:03,972 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2018-11-18 16:56:03,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 16:56:03,972 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 16:56:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:56:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 16:56:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 61 states and 78 transitions. [2018-11-18 16:56:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2018-11-18 16:56:03,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:56:03,982 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2018-11-18 16:56:03,990 INFO L775 CodeCheckObserver]: All specifications hold 36 specifications checked. All of them hold [2018-11-18 16:56:04,045 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:56:04,047 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 16:56:04,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 04:56:04 ImpRootNode [2018-11-18 16:56:04,048 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 16:56:04,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:56:04,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:56:04,048 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:56:04,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:03" (3/4) ... [2018-11-18 16:56:04,052 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:56:04,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-18 16:56:04,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 16:56:04,062 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 16:56:04,117 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_efd1e277-4a8d-46ba-8f7c-07443bba5dad/bin-2019/ukojak/witness.graphml [2018-11-18 16:56:04,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:56:04,118 INFO L168 Benchmark]: Toolchain (without parser) took 1392.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 959.2 MB in the beginning and 988.8 MB in the end (delta: -29.5 MB). Peak memory consumption was 111.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:56:04,119 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:56:04,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.70 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:56:04,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:56:04,120 INFO L168 Benchmark]: Boogie Preprocessor took 18.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:56:04,120 INFO L168 Benchmark]: RCFGBuilder took 434.68 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:56:04,121 INFO L168 Benchmark]: CodeCheck took 616.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:56:04,121 INFO L168 Benchmark]: Witness Printer took 69.39 ms. Allocated memory is still 1.2 GB. Free memory was 996.8 MB in the beginning and 988.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:56:04,122 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, 112 locations, 36 error locations. SAFE Result, 0.5s OverallTime, 37 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -1260182240 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2651 GetRequests, 2651 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 3554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 0/0 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: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.70 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 434.68 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * CodeCheck took 616.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.8 MB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 11.5 GB. * Witness Printer took 69.39 ms. Allocated memory is still 1.2 GB. Free memory was 996.8 MB in the beginning and 988.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...