./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b14dd63832ca953bb678ff696ab3d8598ab5b62 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 18:30:27,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 18:30:27,647 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 18:30:27,655 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 18:30:27,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 18:30:27,656 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 18:30:27,656 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 18:30:27,657 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 18:30:27,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 18:30:27,659 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 18:30:27,660 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 18:30:27,660 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 18:30:27,661 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 18:30:27,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 18:30:27,662 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 18:30:27,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 18:30:27,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 18:30:27,664 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 18:30:27,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 18:30:27,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 18:30:27,668 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 18:30:27,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 18:30:27,670 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 18:30:27,670 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 18:30:27,670 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 18:30:27,671 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 18:30:27,672 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 18:30:27,672 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 18:30:27,673 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 18:30:27,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 18:30:27,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 18:30:27,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 18:30:27,674 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 18:30:27,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 18:30:27,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 18:30:27,675 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 18:30:27,676 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-01 18:30:27,685 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 18:30:27,686 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 18:30:27,686 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 18:30:27,686 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 18:30:27,687 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 18:30:27,687 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 18:30:27,687 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 18:30:27,687 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 18:30:27,687 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 18:30:27,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 18:30:27,687 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 18:30:27,687 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 18:30:27,688 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 18:30:27,688 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 18:30:27,688 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 18:30:27,688 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 18:30:27,688 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 18:30:27,688 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 18:30:27,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 18:30:27,688 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 18:30:27,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 18:30:27,689 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 18:30:27,689 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 18:30:27,689 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 18:30:27,689 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 18:30:27,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b14dd63832ca953bb678ff696ab3d8598ab5b62 [2018-12-01 18:30:27,708 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 18:30:27,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 18:30:27,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 18:30:27,718 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 18:30:27,719 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 18:30:27,719 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2018-12-01 18:30:27,755 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/data/d68621256/e022a32639874494abb2e15fb4c83c28/FLAGecf0ceae7 [2018-12-01 18:30:28,085 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 18:30:28,085 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/sv-benchmarks/c/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2018-12-01 18:30:28,088 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/data/d68621256/e022a32639874494abb2e15fb4c83c28/FLAGecf0ceae7 [2018-12-01 18:30:28,096 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/data/d68621256/e022a32639874494abb2e15fb4c83c28 [2018-12-01 18:30:28,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 18:30:28,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 18:30:28,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 18:30:28,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 18:30:28,101 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 18:30:28,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1441f7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28, skipping insertion in model container [2018-12-01 18:30:28,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 18:30:28,117 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 18:30:28,202 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:30:28,207 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 18:30:28,217 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:30:28,227 INFO L195 MainTranslator]: Completed translation [2018-12-01 18:30:28,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28 WrapperNode [2018-12-01 18:30:28,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 18:30:28,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 18:30:28,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 18:30:28,228 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 18:30:28,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 18:30:28,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 18:30:28,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 18:30:28,252 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 18:30:28,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 18:30:28,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 18:30:28,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 18:30:28,297 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 18:30:28,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:30:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 18:30:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 18:30:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 18:30:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 18:30:28,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 18:30:28,437 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 18:30:28,438 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-01 18:30:28,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:30:28 BoogieIcfgContainer [2018-12-01 18:30:28,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 18:30:28,438 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 18:30:28,438 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 18:30:28,445 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 18:30:28,445 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:30:28" (1/1) ... [2018-12-01 18:30:28,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:30:28,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-12-01 18:30:28,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-01 18:30:28,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-01 18:30:28,476 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:28,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-01 18:30:28,571 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-01 18:30:28,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-01 18:30:28,572 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:28,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-01 18:30:28,685 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-01 18:30:28,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 18:30:28,685 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:28,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:28,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-12-01 18:30:28,870 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-12-01 18:30:28,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 18:30:28,870 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-12-01 18:30:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-01 18:30:28,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 18:30:28,949 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-12-01 18:30:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-12-01 18:30:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 18:30:29,022 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-12-01 18:30:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-01 18:30:29,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 18:30:29,098 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-12-01 18:30:29,204 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-01 18:30:29,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 18:30:29,205 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-12-01 18:30:29,301 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-12-01 18:30:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 18:30:29,301 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-01 18:30:29,399 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-01 18:30:29,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 18:30:29,400 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-01 18:30:29,516 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-01 18:30:29,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 18:30:29,516 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-01 18:30:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-01 18:30:29,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-01 18:30:29,621 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-01 18:30:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-01 18:30:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-01 18:30:29,744 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-12-01 18:30:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-01 18:30:29,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-01 18:30:29,850 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-12-01 18:30:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-12-01 18:30:29,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 18:30:29,950 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-12-01 18:30:30,076 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-01 18:30:30,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-01 18:30:30,076 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-12-01 18:30:30,203 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-01 18:30:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 18:30:30,204 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-12-01 18:30:30,334 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-12-01 18:30:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 18:30:30,334 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2018-12-01 18:30:30,446 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-12-01 18:30:30,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 18:30:30,447 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-12-01 18:30:30,571 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-01 18:30:30,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-01 18:30:30,571 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-12-01 18:30:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-01 18:30:30,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 18:30:30,705 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-12-01 18:30:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-01 18:30:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 18:30:30,841 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:30,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-12-01 18:30:30,993 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-12-01 18:30:30,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-01 18:30:30,993 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:31,059 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-12-01 18:30:31,161 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-12-01 18:30:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-01 18:30:31,161 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:31,228 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:31,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2018-12-01 18:30:31,330 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-12-01 18:30:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-01 18:30:31,330 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2018-12-01 18:30:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-12-01 18:30:31,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-01 18:30:31,506 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:31,556 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2018-12-01 18:30:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-12-01 18:30:31,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-01 18:30:31,658 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2018-12-01 18:30:31,819 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-12-01 18:30:31,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-01 18:30:31,819 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:31,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2018-12-01 18:30:31,967 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-12-01 18:30:31,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-01 18:30:31,967 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2018-12-01 18:30:32,125 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-12-01 18:30:32,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-01 18:30:32,125 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:32,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:32,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2018-12-01 18:30:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-12-01 18:30:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-01 18:30:32,276 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:32,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2018-12-01 18:30:32,437 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-12-01 18:30:32,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-01 18:30:32,437 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:32,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2018-12-01 18:30:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-12-01 18:30:32,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-01 18:30:32,610 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:32,661 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:32,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:32,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2018-12-01 18:30:32,790 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-12-01 18:30:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-01 18:30:32,791 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:32,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2018-12-01 18:30:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-12-01 18:30:32,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-01 18:30:32,958 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:33,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2018-12-01 18:30:33,136 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-12-01 18:30:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-01 18:30:33,137 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2018-12-01 18:30:33,332 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-01 18:30:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-01 18:30:33,332 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:33,386 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2018-12-01 18:30:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-12-01 18:30:33,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-01 18:30:33,517 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:33,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2018-12-01 18:30:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-12-01 18:30:33,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-01 18:30:33,734 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:33,790 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2018-12-01 18:30:33,925 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-12-01 18:30:33,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-01 18:30:33,926 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:34,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:34,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2018-12-01 18:30:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-12-01 18:30:34,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-01 18:30:34,125 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:34,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:34,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2018-12-01 18:30:34,316 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2018-12-01 18:30:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-01 18:30:34,316 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:34,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 47 states and 49 transitions. [2018-12-01 18:30:34,530 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2018-12-01 18:30:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-01 18:30:34,531 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:34,604 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 48 states and 50 transitions. [2018-12-01 18:30:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2018-12-01 18:30:34,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-01 18:30:34,743 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:34,803 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 49 states and 51 transitions. [2018-12-01 18:30:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2018-12-01 18:30:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-01 18:30:34,948 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 50 states and 52 transitions. [2018-12-01 18:30:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2018-12-01 18:30:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-01 18:30:35,178 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:35,249 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:35,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 51 states and 53 transitions. [2018-12-01 18:30:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-12-01 18:30:35,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-01 18:30:35,395 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:35,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 52 states and 54 transitions. [2018-12-01 18:30:35,633 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-12-01 18:30:35,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-01 18:30:35,634 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:35,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 53 states and 55 transitions. [2018-12-01 18:30:35,861 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-12-01 18:30:35,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-01 18:30:35,861 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:36,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:36,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 54 states and 56 transitions. [2018-12-01 18:30:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-12-01 18:30:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-01 18:30:36,091 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:36,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:36,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 55 states and 57 transitions. [2018-12-01 18:30:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-12-01 18:30:36,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-01 18:30:36,341 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 56 states and 58 transitions. [2018-12-01 18:30:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-12-01 18:30:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-12-01 18:30:36,591 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 57 states and 59 transitions. [2018-12-01 18:30:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-12-01 18:30:36,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-01 18:30:36,831 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:37,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 58 states and 60 transitions. [2018-12-01 18:30:37,074 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-12-01 18:30:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-01 18:30:37,074 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:37,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 59 states and 61 transitions. [2018-12-01 18:30:37,325 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2018-12-01 18:30:37,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-01 18:30:37,325 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:37,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:37,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 60 states and 62 transitions. [2018-12-01 18:30:37,582 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2018-12-01 18:30:37,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-01 18:30:37,582 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:37,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 61 states and 63 transitions. [2018-12-01 18:30:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-12-01 18:30:37,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-01 18:30:37,845 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:37,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:38,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:38,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 62 states and 64 transitions. [2018-12-01 18:30:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-12-01 18:30:38,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-01 18:30:38,108 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 63 states and 65 transitions. [2018-12-01 18:30:38,373 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2018-12-01 18:30:38,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-01 18:30:38,373 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:38,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:38,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:38,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 64 states and 66 transitions. [2018-12-01 18:30:38,642 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2018-12-01 18:30:38,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-12-01 18:30:38,643 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:38,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 65 states and 67 transitions. [2018-12-01 18:30:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2018-12-01 18:30:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-01 18:30:38,921 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 66 states and 68 transitions. [2018-12-01 18:30:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2018-12-01 18:30:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-01 18:30:39,199 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:39,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 67 states and 69 transitions. [2018-12-01 18:30:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2018-12-01 18:30:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-01 18:30:39,481 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:39,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 68 states and 70 transitions. [2018-12-01 18:30:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2018-12-01 18:30:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-01 18:30:39,774 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:40,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 69 states and 71 transitions. [2018-12-01 18:30:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2018-12-01 18:30:40,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-01 18:30:40,105 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:40,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 70 states and 72 transitions. [2018-12-01 18:30:40,403 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2018-12-01 18:30:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-12-01 18:30:40,403 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:40,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:40,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 71 states and 73 transitions. [2018-12-01 18:30:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2018-12-01 18:30:40,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-01 18:30:40,740 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 72 states and 74 transitions. [2018-12-01 18:30:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2018-12-01 18:30:41,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-01 18:30:41,062 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:41,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 73 states and 75 transitions. [2018-12-01 18:30:41,398 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2018-12-01 18:30:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-12-01 18:30:41,398 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:41,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:41,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 74 states and 76 transitions. [2018-12-01 18:30:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2018-12-01 18:30:41,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-01 18:30:41,743 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 75 states and 77 transitions. [2018-12-01 18:30:42,055 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2018-12-01 18:30:42,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-01 18:30:42,056 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:42,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 76 states and 78 transitions. [2018-12-01 18:30:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2018-12-01 18:30:42,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-01 18:30:42,377 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 77 states and 79 transitions. [2018-12-01 18:30:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2018-12-01 18:30:42,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-01 18:30:42,693 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:42,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:43,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:43,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 78 states and 80 transitions. [2018-12-01 18:30:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2018-12-01 18:30:43,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-01 18:30:43,022 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 79 states and 81 transitions. [2018-12-01 18:30:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2018-12-01 18:30:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-01 18:30:43,360 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:43,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:43,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 80 states and 82 transitions. [2018-12-01 18:30:43,717 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2018-12-01 18:30:43,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-01 18:30:43,717 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 81 states and 83 transitions. [2018-12-01 18:30:44,061 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2018-12-01 18:30:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-01 18:30:44,061 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 82 states and 84 transitions. [2018-12-01 18:30:44,408 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2018-12-01 18:30:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-01 18:30:44,408 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:44,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 83 states and 85 transitions. [2018-12-01 18:30:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2018-12-01 18:30:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-12-01 18:30:44,768 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 84 states and 86 transitions. [2018-12-01 18:30:45,124 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2018-12-01 18:30:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-01 18:30:45,124 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:45,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 85 states and 87 transitions. [2018-12-01 18:30:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2018-12-01 18:30:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-01 18:30:45,483 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:45,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2018-12-01 18:30:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2018-12-01 18:30:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-01 18:30:45,850 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:30:46,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:30:46,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 87 states and 88 transitions. [2018-12-01 18:30:46,264 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2018-12-01 18:30:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-01 18:30:46,264 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 18:30:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:30:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-12-01 18:31:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 18:31:44,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 86 states and 87 transitions. [2018-12-01 18:31:44,514 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2018-12-01 18:31:44,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 18:31:44,515 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 84 iterations. [2018-12-01 18:31:44,527 INFO L779 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-12-01 18:31:44,737 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 11 [2018-12-01 18:31:44,751 INFO L583 CodeCheckObserver]: Invariant with dag size 11 [2018-12-01 18:31:44,756 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,756 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,757 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,761 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,761 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,761 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,761 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-01 18:31:44,761 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,762 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:31:44 ImpRootNode [2018-12-01 18:31:44,762 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 18:31:44,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 18:31:44,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 18:31:44,763 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 18:31:44,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:30:28" (3/4) ... [2018-12-01 18:31:44,765 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 18:31:44,772 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-01 18:31:44,772 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-01 18:31:44,772 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 18:31:44,788 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] [2018-12-01 18:31:44,788 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-01 18:31:44,793 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b9c047eb-84a7-403f-8a04-46e9f83ac2fe/bin-2019/ukojak/witness.graphml [2018-12-01 18:31:44,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 18:31:44,794 INFO L168 Benchmark]: Toolchain (without parser) took 76695.62 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 359.7 MB). Free memory was 953.3 MB in the beginning and 1.3 GB in the end (delta: -309.8 MB). Peak memory consumption was 49.9 MB. Max. memory is 11.5 GB. [2018-12-01 18:31:44,794 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:31:44,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:31:44,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.26 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:31:44,795 INFO L168 Benchmark]: Boogie Preprocessor took 44.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-12-01 18:31:44,795 INFO L168 Benchmark]: RCFGBuilder took 141.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-01 18:31:44,795 INFO L168 Benchmark]: CodeCheck took 76324.08 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 252.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -175.4 MB). Peak memory consumption was 553.8 MB. Max. memory is 11.5 GB. [2018-12-01 18:31:44,795 INFO L168 Benchmark]: Witness Printer took 30.57 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 69.8 kB). Peak memory consumption was 69.8 kB. Max. memory is 11.5 GB. [2018-12-01 18:31:44,797 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 3 error locations. SAFE Result, 76.0s OverallTime, 84 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 1290 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39226 GetRequests, 35236 SyntacticMatches, 3318 SemanticMatches, 672 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191394 ImplicationChecksByTransitivity, 72.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 3650 NumberOfCodeBlocks, 3650 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3567 ConstructedInterpolants, 0 QuantifiedInterpolants, 1103009 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 83 InterpolantComputations, 4 PerfectInterpolantSequences, 3240/88560 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant [2018-12-01 18:31:44,798 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,798 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,798 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,798 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,798 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,798 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown)[cstats] == \valid[cstats := 0][cstats] && \old(unknown-main_\old_#valid-unknown) == \valid[cstats := 0][cstats := \old(unknown-main_\old_#valid-unknown)[cstats]] - InvariantResult [Line: 25]: Loop Invariant [2018-12-01 18:31:44,799 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-01 18:31:44,799 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.26 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 141.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * CodeCheck took 76324.08 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 252.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -175.4 MB). Peak memory consumption was 553.8 MB. Max. memory is 11.5 GB. * Witness Printer took 30.57 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 69.8 kB). Peak memory consumption was 69.8 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...