./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product21_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product21_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b51e4d4f6750e9cf93bd85ecf4b933ea1ea8886c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:36:25,072 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:36:25,073 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:36:25,079 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:36:25,079 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:36:25,079 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:36:25,080 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:36:25,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:36:25,082 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:36:25,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:36:25,083 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:36:25,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:36:25,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:36:25,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:36:25,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:36:25,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:36:25,087 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:36:25,089 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:36:25,090 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:36:25,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:36:25,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:36:25,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:36:25,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:36:25,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:36:25,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:36:25,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:36:25,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:36:25,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:36:25,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:36:25,099 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:36:25,099 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:36:25,100 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:36:25,100 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:36:25,100 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:36:25,100 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:36:25,101 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:36:25,102 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 17:36:25,111 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:36:25,111 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:36:25,112 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:36:25,112 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 17:36:25,112 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:36:25,112 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:36:25,113 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:36:25,113 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:36:25,113 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:36:25,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:36:25,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:36:25,113 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:36:25,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:36:25,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:36:25,114 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:36:25,114 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:36:25,114 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:36:25,114 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:36:25,114 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 17:36:25,114 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 17:36:25,114 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:36:25,115 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:36:25,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 17:36:25,115 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:36:25,115 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:36:25,115 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:36:25,115 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 17:36:25,115 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:36:25,115 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:36:25,116 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_ed089d06-ba1f-4f20-b0d6-d2a65177454c/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 ! call(__VERIFIER_error())) ) 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 -> b51e4d4f6750e9cf93bd85ecf4b933ea1ea8886c [2018-11-18 17:36:25,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:36:25,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:36:25,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:36:25,149 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:36:25,149 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:36:25,149 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec2_product21_true-unreach-call_false-termination.cil.c [2018-11-18 17:36:25,185 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/data/cbb9671d8/6c81195230bb41d0be460bcd9ac93554/FLAG2511c3f2f [2018-11-18 17:36:25,541 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:36:25,542 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/sv-benchmarks/c/product-lines/minepump_spec2_product21_true-unreach-call_false-termination.cil.c [2018-11-18 17:36:25,550 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/data/cbb9671d8/6c81195230bb41d0be460bcd9ac93554/FLAG2511c3f2f [2018-11-18 17:36:25,946 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/data/cbb9671d8/6c81195230bb41d0be460bcd9ac93554 [2018-11-18 17:36:25,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:36:25,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:36:25,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:36:25,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:36:25,952 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:36:25,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:36:25" (1/1) ... [2018-11-18 17:36:25,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e6dc40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:25, skipping insertion in model container [2018-11-18 17:36:25,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:36:25" (1/1) ... [2018-11-18 17:36:25,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:36:25,989 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:36:26,183 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:36:26,191 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:36:26,297 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:36:26,315 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:36:26,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26 WrapperNode [2018-11-18 17:36:26,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:36:26,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:36:26,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:36:26,316 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:36:26,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:36:26,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:36:26,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:36:26,362 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:36:26,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... [2018-11-18 17:36:26,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:36:26,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:36:26,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:36:26,390 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:36:26,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:36:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/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 17:36:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:36:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 17:36:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 17:36:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 17:36:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 17:36:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 17:36:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 17:36:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 17:36:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 17:36:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 17:36:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 17:36:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 17:36:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 17:36:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 17:36:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 17:36:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 17:36:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 17:36:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:36:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:36:27,216 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:36:27,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:36:27 BoogieIcfgContainer [2018-11-18 17:36:27,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:36:27,218 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 17:36:27,218 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 17:36:27,226 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 17:36:27,227 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:36:27" (1/1) ... [2018-11-18 17:36:27,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:36:27,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 64 states and 86 transitions. [2018-11-18 17:36:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2018-11-18 17:36:27,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 17:36:27,270 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:27,415 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 17:36:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 64 states and 83 transitions. [2018-11-18 17:36:27,426 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2018-11-18 17:36:27,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:36:27,427 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:27,515 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 17:36:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 67 states and 87 transitions. [2018-11-18 17:36:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2018-11-18 17:36:27,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 17:36:27,551 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:27,633 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 17:36:27,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 77 states and 106 transitions. [2018-11-18 17:36:27,776 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 106 transitions. [2018-11-18 17:36:27,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 17:36:27,777 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:27,817 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 17:36:27,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:27,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 78 states and 107 transitions. [2018-11-18 17:36:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 107 transitions. [2018-11-18 17:36:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 17:36:27,827 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:27,865 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 17:36:27,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:27,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 79 states and 108 transitions. [2018-11-18 17:36:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2018-11-18 17:36:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 17:36:27,876 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:27,997 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 17:36:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 96 states and 140 transitions. [2018-11-18 17:36:28,321 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 140 transitions. [2018-11-18 17:36:28,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 17:36:28,322 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 107 states and 162 transitions. [2018-11-18 17:36:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 162 transitions. [2018-11-18 17:36:28,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:36:28,667 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:28,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:28,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 108 states and 165 transitions. [2018-11-18 17:36:28,766 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 165 transitions. [2018-11-18 17:36:28,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:36:28,769 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:28,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:28,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 109 states and 168 transitions. [2018-11-18 17:36:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 168 transitions. [2018-11-18 17:36:28,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 17:36:28,810 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 111 states and 171 transitions. [2018-11-18 17:36:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 171 transitions. [2018-11-18 17:36:28,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:36:28,926 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:28,948 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 17:36:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 112 states and 172 transitions. [2018-11-18 17:36:28,962 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 172 transitions. [2018-11-18 17:36:28,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:36:28,963 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:29,018 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 17:36:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 132 states and 215 transitions. [2018-11-18 17:36:29,576 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 215 transitions. [2018-11-18 17:36:29,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 17:36:29,577 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:29,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 137 states and 224 transitions. [2018-11-18 17:36:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 224 transitions. [2018-11-18 17:36:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 17:36:29,803 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:29,833 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 17:36:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 138 states and 225 transitions. [2018-11-18 17:36:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 225 transitions. [2018-11-18 17:36:29,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 17:36:29,859 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:30,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 145 states and 242 transitions. [2018-11-18 17:36:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 242 transitions. [2018-11-18 17:36:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 17:36:30,214 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 143 states and 238 transitions. [2018-11-18 17:36:30,260 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 238 transitions. [2018-11-18 17:36:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 17:36:30,261 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:30,515 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 17:36:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 151 states and 257 transitions. [2018-11-18 17:36:31,214 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 257 transitions. [2018-11-18 17:36:31,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 17:36:31,215 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 161 states and 276 transitions. [2018-11-18 17:36:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 276 transitions. [2018-11-18 17:36:31,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 17:36:31,519 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:31,546 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:31,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 163 states and 280 transitions. [2018-11-18 17:36:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 280 transitions. [2018-11-18 17:36:31,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 17:36:31,719 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:31,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 164 states and 281 transitions. [2018-11-18 17:36:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 281 transitions. [2018-11-18 17:36:31,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 17:36:31,761 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 17:36:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 165 states and 282 transitions. [2018-11-18 17:36:31,805 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 282 transitions. [2018-11-18 17:36:31,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 17:36:31,806 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 17:36:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 168 states and 285 transitions. [2018-11-18 17:36:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 285 transitions. [2018-11-18 17:36:32,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 17:36:32,028 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:32,103 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 184 states and 345 transitions. [2018-11-18 17:36:33,205 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 345 transitions. [2018-11-18 17:36:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 17:36:33,206 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 187 states and 350 transitions. [2018-11-18 17:36:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 350 transitions. [2018-11-18 17:36:33,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 17:36:33,438 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 199 states and 384 transitions. [2018-11-18 17:36:34,301 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 384 transitions. [2018-11-18 17:36:34,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-18 17:36:34,303 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 17:36:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:35,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 208 states and 420 transitions. [2018-11-18 17:36:35,079 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 420 transitions. [2018-11-18 17:36:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-18 17:36:35,080 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 17:36:35,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 206 states and 401 transitions. [2018-11-18 17:36:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 401 transitions. [2018-11-18 17:36:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-18 17:36:35,160 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:35,223 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 17:36:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 214 states and 430 transitions. [2018-11-18 17:36:36,081 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 430 transitions. [2018-11-18 17:36:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 17:36:36,083 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:36,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:36,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 222 states and 463 transitions. [2018-11-18 17:36:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 463 transitions. [2018-11-18 17:36:36,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 17:36:36,839 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:37,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 225 states and 467 transitions. [2018-11-18 17:36:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 467 transitions. [2018-11-18 17:36:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:36:37,053 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 230 states and 481 transitions. [2018-11-18 17:36:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 481 transitions. [2018-11-18 17:36:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-18 17:36:37,517 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 17:36:38,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:38,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 233 states and 486 transitions. [2018-11-18 17:36:38,445 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 486 transitions. [2018-11-18 17:36:38,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 17:36:38,445 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:38,478 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 17:36:38,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:38,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 240 states and 499 transitions. [2018-11-18 17:36:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 499 transitions. [2018-11-18 17:36:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 17:36:38,803 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:39,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 247 states and 513 transitions. [2018-11-18 17:36:39,121 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 513 transitions. [2018-11-18 17:36:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 17:36:39,122 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:39,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:39,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 254 states and 545 transitions. [2018-11-18 17:36:39,357 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 545 transitions. [2018-11-18 17:36:39,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:36:39,358 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-18 17:36:39,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:39,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 255 states and 546 transitions. [2018-11-18 17:36:39,406 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 546 transitions. [2018-11-18 17:36:39,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:36:39,407 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 261 states and 558 transitions. [2018-11-18 17:36:40,028 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 558 transitions. [2018-11-18 17:36:40,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 17:36:40,029 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 265 states and 567 transitions. [2018-11-18 17:36:40,474 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 567 transitions. [2018-11-18 17:36:40,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 17:36:40,475 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:40,493 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 269 states and 576 transitions. [2018-11-18 17:36:40,886 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 576 transitions. [2018-11-18 17:36:40,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 17:36:40,887 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-18 17:36:40,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:40,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 271 states and 578 transitions. [2018-11-18 17:36:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 578 transitions. [2018-11-18 17:36:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 17:36:40,918 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:40,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 272 states and 579 transitions. [2018-11-18 17:36:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 579 transitions. [2018-11-18 17:36:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 17:36:40,959 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:40,975 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:41,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:41,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 273 states and 582 transitions. [2018-11-18 17:36:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 582 transitions. [2018-11-18 17:36:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 17:36:41,179 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:41,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:41,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 274 states and 583 transitions. [2018-11-18 17:36:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 583 transitions. [2018-11-18 17:36:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-18 17:36:41,312 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:41,337 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-18 17:36:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 278 states and 590 transitions. [2018-11-18 17:36:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 590 transitions. [2018-11-18 17:36:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 17:36:41,433 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 17:36:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 279 states and 591 transitions. [2018-11-18 17:36:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 591 transitions. [2018-11-18 17:36:41,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-11-18 17:36:41,461 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 17:36:41,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 283 states and 600 transitions. [2018-11-18 17:36:41,963 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 600 transitions. [2018-11-18 17:36:41,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-18 17:36:41,964 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-11-18 17:36:41,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:41,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 281 states and 596 transitions. [2018-11-18 17:36:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 596 transitions. [2018-11-18 17:36:41,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-18 17:36:41,997 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:42,014 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-18 17:36:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 271 states and 566 transitions. [2018-11-18 17:36:42,253 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 566 transitions. [2018-11-18 17:36:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-18 17:36:42,254 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-18 17:36:42,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:42,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 274 states and 568 transitions. [2018-11-18 17:36:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 568 transitions. [2018-11-18 17:36:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 17:36:42,968 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:42,987 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-18 17:36:43,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 276 states and 571 transitions. [2018-11-18 17:36:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 571 transitions. [2018-11-18 17:36:43,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-18 17:36:43,018 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-18 17:36:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 280 states and 578 transitions. [2018-11-18 17:36:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 578 transitions. [2018-11-18 17:36:43,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-11-18 17:36:43,323 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-18 17:36:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 281 states and 579 transitions. [2018-11-18 17:36:43,403 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 579 transitions. [2018-11-18 17:36:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-11-18 17:36:43,404 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-18 17:36:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:43,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 282 states and 580 transitions. [2018-11-18 17:36:43,639 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 580 transitions. [2018-11-18 17:36:43,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-18 17:36:43,640 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-18 17:36:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 277 states and 570 transitions. [2018-11-18 17:36:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 570 transitions. [2018-11-18 17:36:43,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-18 17:36:43,684 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-18 17:36:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 272 states and 558 transitions. [2018-11-18 17:36:43,756 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 558 transitions. [2018-11-18 17:36:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-18 17:36:43,757 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-11-18 17:36:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:44,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 274 states and 552 transitions. [2018-11-18 17:36:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 552 transitions. [2018-11-18 17:36:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-18 17:36:44,195 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-18 17:36:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 277 states and 557 transitions. [2018-11-18 17:36:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 557 transitions. [2018-11-18 17:36:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 17:36:44,425 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:44,450 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-11-18 17:36:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 283 states and 569 transitions. [2018-11-18 17:36:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 569 transitions. [2018-11-18 17:36:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-18 17:36:45,043 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 17:36:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:36:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-18 17:36:45,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 17:36:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 116 states and 152 transitions. [2018-11-18 17:36:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 152 transitions. [2018-11-18 17:36:45,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:36:45,327 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 60 iterations. [2018-11-18 17:36:45,334 INFO L775 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2018-11-18 17:36:45,570 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,572 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,572 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,572 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,572 INFO L579 CodeCheckObserver]: Invariant with dag size 16 [2018-11-18 17:36:45,575 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,575 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,575 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,575 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,575 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,576 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 17:36:45,576 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,576 INFO L579 CodeCheckObserver]: Invariant with dag size 9 [2018-11-18 17:36:45,576 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,576 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 17:36:45,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 05:36:45 ImpRootNode [2018-11-18 17:36:45,577 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 17:36:45,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:36:45,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:36:45,577 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:36:45,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:36:27" (3/4) ... [2018-11-18 17:36:45,580 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:36:45,583 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 17:36:45,583 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 17:36:45,584 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 17:36:45,584 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 17:36:45,584 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 17:36:45,584 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 17:36:45,584 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 17:36:45,584 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-11-18 17:36:45,588 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-11-18 17:36:45,589 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 17:36:45,589 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:36:45,608 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || (!(0 == methAndRunningLastTime) && !(0 == methaneLevelCritical))) || !(0 == pumpRunning)) || 0 == systemActive [2018-11-18 17:36:45,609 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: pumpRunning == \old(pumpRunning) [2018-11-18 17:36:45,641 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ed089d06-ba1f-4f20-b0d6-d2a65177454c/bin-2019/ukojak/witness.graphml [2018-11-18 17:36:45,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:36:45,642 INFO L168 Benchmark]: Toolchain (without parser) took 19692.98 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 467.1 MB). Free memory was 951.6 MB in the beginning and 1.2 GB in the end (delta: -253.8 MB). Peak memory consumption was 213.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:36:45,642 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:36:45,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.6 MB in the beginning and 1.2 GB in the end (delta: -199.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:36:45,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:36:45,643 INFO L168 Benchmark]: Boogie Preprocessor took 27.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:36:45,643 INFO L168 Benchmark]: RCFGBuilder took 826.93 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: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:36:45,643 INFO L168 Benchmark]: CodeCheck took 18359.29 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 305.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -134.6 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:36:45,644 INFO L168 Benchmark]: Witness Printer took 63.86 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:36:45,645 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 9 procedures, 91 locations, 1 error locations. SAFE Result, 18.0s OverallTime, 60 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -1034075952 SDtfs, 1950997128 SDslu, -342497792 SDs, 0 SdLazy, -458197560 SolverSat, 1335307364 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36857 GetRequests, 36310 SyntacticMatches, 171 SemanticMatches, 376 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67600 ImplicationChecksByTransitivity, 14.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 3442 NumberOfCodeBlocks, 3442 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 3383 ConstructedInterpolants, 0 QuantifiedInterpolants, 406663 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 59 InterpolantComputations, 44 PerfectInterpolantSequences, 1483/1549 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: 650]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 799]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || (!(0 == methAndRunningLastTime) && !(0 == methaneLevelCritical))) || !(0 == pumpRunning)) || 0 == systemActive - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 753]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 460]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 731]: Loop Invariant Derived loop invariant: pumpRunning == \old(pumpRunning) - InvariantResult [Line: 450]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: (0 == methaneLevelCritical && 0 == pumpRunning) && systemActive == 1 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 650]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 951.6 MB in the beginning and 1.2 GB in the end (delta: -199.1 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 826.93 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: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. * CodeCheck took 18359.29 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 305.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -134.6 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.86 ms. Allocated memory is still 1.5 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...