./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset3_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_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/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 06914024aa49a34ce88c7dcbc25f89730c27c8e4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:40:34,051 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:40:34,052 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:40:34,058 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:40:34,059 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:40:34,059 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:40:34,060 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:40:34,061 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:40:34,062 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:40:34,063 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:40:34,063 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:40:34,064 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:40:34,064 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:40:34,065 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:40:34,066 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:40:34,066 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:40:34,067 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:40:34,068 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:40:34,069 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:40:34,070 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:40:34,071 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:40:34,072 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:40:34,073 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:40:34,073 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:40:34,073 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:40:34,074 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:40:34,075 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:40:34,075 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:40:34,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:40:34,076 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:40:34,076 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:40:34,077 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:40:34,077 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:40:34,077 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:40:34,078 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:40:34,078 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:40:34,079 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 18:40:34,087 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:40:34,087 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:40:34,088 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 18:40:34,088 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 18:40:34,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:40:34,089 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:40:34,089 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 18:40:34,089 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:40:34,089 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:40:34,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:40:34,089 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 18:40:34,089 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 18:40:34,090 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 18:40:34,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:40:34,090 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:40:34,090 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 18:40:34,090 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 18:40:34,090 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 18:40:34,090 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:40:34,090 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:40:34,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 18:40:34,091 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:40:34,091 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:40:34,091 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 18:40:34,091 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:40:34,091 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_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/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 -> 06914024aa49a34ce88c7dcbc25f89730c27c8e4 [2018-12-09 18:40:34,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:40:34,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:40:34,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:40:34,127 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:40:34,127 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:40:34,128 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-12-09 18:40:34,161 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/data/9810069aa/3105ba428d3a47158c90954c71fae341/FLAG381ee83d9 [2018-12-09 18:40:34,572 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:40:34,572 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/sv-benchmarks/c/ldv-memsafety/memset3_true-valid-memsafety_true-termination.c [2018-12-09 18:40:34,576 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/data/9810069aa/3105ba428d3a47158c90954c71fae341/FLAG381ee83d9 [2018-12-09 18:40:34,585 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/data/9810069aa/3105ba428d3a47158c90954c71fae341 [2018-12-09 18:40:34,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:40:34,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:40:34,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:40:34,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:40:34,590 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:40:34,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed1acf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34, skipping insertion in model container [2018-12-09 18:40:34,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:40:34,607 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:40:34,700 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:40:34,705 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:40:34,715 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:40:34,723 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:40:34,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34 WrapperNode [2018-12-09 18:40:34,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:40:34,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:40:34,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:40:34,724 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:40:34,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:40:34,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:40:34,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:40:34,744 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:40:34,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:40:34,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:40:34,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:40:34,783 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:40:34,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/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 [2018-12-09 18:40:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:40:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:40:34,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:40:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:40:34,910 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:40:34,910 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 18:40:34,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:40:34 BoogieIcfgContainer [2018-12-09 18:40:34,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:40:34,910 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 18:40:34,910 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 18:40:34,917 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 18:40:34,917 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:40:34" (1/1) ... [2018-12-09 18:40:34,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:40:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-12-09 18:40:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-09 18:40:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 18:40:34,945 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-09 18:40:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-09 18:40:35,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 18:40:35,039 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-09 18:40:35,132 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-09 18:40:35,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 18:40:35,132 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-12-09 18:40:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-12-09 18:40:35,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 18:40:35,310 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2018-12-09 18:40:35,384 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-09 18:40:35,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 18:40:35,384 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-12-09 18:40:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-12-09 18:40:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 18:40:35,460 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-12-09 18:40:35,548 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-09 18:40:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 18:40:35,549 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-12-09 18:40:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-09 18:40:35,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 18:40:35,640 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-12-09 18:40:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-12-09 18:40:35,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 18:40:35,745 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-09 18:40:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-09 18:40:35,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 18:40:35,850 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-09 18:40:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-09 18:40:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 18:40:35,987 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,017 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-09 18:40:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 18:40:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 18:40:36,084 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,120 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-12-09 18:40:36,186 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-09 18:40:36,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 18:40:36,186 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-12-09 18:40:36,290 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 18:40:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 18:40:36,291 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,322 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-12-09 18:40:36,392 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-12-09 18:40:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 18:40:36,392 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-12-09 18:40:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-12-09 18:40:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 18:40:36,509 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-12-09 18:40:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-12-09 18:40:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 18:40:36,632 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2018-12-09 18:40:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-12-09 18:40:36,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 18:40:36,744 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2018-12-09 18:40:36,859 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-12-09 18:40:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 18:40:36,859 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:36,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2018-12-09 18:40:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-12-09 18:40:36,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 18:40:36,978 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:37,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:37,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2018-12-09 18:40:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-09 18:40:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 18:40:37,120 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:37,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2018-12-09 18:40:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-12-09 18:40:37,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 18:40:37,279 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:37,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 27 states and 29 transitions. [2018-12-09 18:40:37,410 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-12-09 18:40:37,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 18:40:37,411 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:37,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:37,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 28 states and 30 transitions. [2018-12-09 18:40:37,547 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-12-09 18:40:37,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 18:40:37,547 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:37,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:37,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2018-12-09 18:40:37,687 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-12-09 18:40:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 18:40:37,688 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:37,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2018-12-09 18:40:37,827 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-12-09 18:40:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 18:40:37,828 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:37,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2018-12-09 18:40:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-12-09 18:40:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 18:40:37,999 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:38,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2018-12-09 18:40:38,185 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-12-09 18:40:38,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 18:40:38,185 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:38,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2018-12-09 18:40:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-12-09 18:40:38,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 18:40:38,343 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:38,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2018-12-09 18:40:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-12-09 18:40:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 18:40:38,495 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:38,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:38,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 35 states and 37 transitions. [2018-12-09 18:40:38,657 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-12-09 18:40:38,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 18:40:38,657 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:38,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:38,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 36 states and 38 transitions. [2018-12-09 18:40:38,832 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-12-09 18:40:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-09 18:40:38,832 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:39,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:39,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 37 states and 39 transitions. [2018-12-09 18:40:39,001 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-12-09 18:40:39,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-09 18:40:39,001 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:39,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2018-12-09 18:40:39,174 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-12-09 18:40:39,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-09 18:40:39,175 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 39 states and 41 transitions. [2018-12-09 18:40:39,367 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-12-09 18:40:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-09 18:40:39,367 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:39,424 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 40 states and 42 transitions. [2018-12-09 18:40:39,546 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-12-09 18:40:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-09 18:40:39,546 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:39,609 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:39,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 41 states and 43 transitions. [2018-12-09 18:40:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-09 18:40:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-09 18:40:39,735 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:39,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:39,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 42 states and 44 transitions. [2018-12-09 18:40:39,924 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-12-09 18:40:39,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-09 18:40:39,924 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 43 states and 45 transitions. [2018-12-09 18:40:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-12-09 18:40:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-09 18:40:40,145 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 44 states and 46 transitions. [2018-12-09 18:40:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-12-09 18:40:40,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-09 18:40:40,360 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:40,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 45 states and 47 transitions. [2018-12-09 18:40:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-12-09 18:40:40,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 18:40:40,573 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:40,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 46 states and 48 transitions. [2018-12-09 18:40:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2018-12-09 18:40:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 18:40:40,800 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:40,880 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:41,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:41,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 47 states and 49 transitions. [2018-12-09 18:40:41,020 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2018-12-09 18:40:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-09 18:40:41,021 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:41,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 48 states and 50 transitions. [2018-12-09 18:40:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2018-12-09 18:40:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 18:40:41,230 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:41,290 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 49 states and 51 transitions. [2018-12-09 18:40:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2018-12-09 18:40:41,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 18:40:41,434 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:41,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 50 states and 52 transitions. [2018-12-09 18:40:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2018-12-09 18:40:41,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-09 18:40:41,661 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:41,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 51 states and 53 transitions. [2018-12-09 18:40:41,892 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-12-09 18:40:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-09 18:40:41,893 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:42,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 52 states and 54 transitions. [2018-12-09 18:40:42,131 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-12-09 18:40:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-09 18:40:42,132 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:42,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:42,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 53 states and 55 transitions. [2018-12-09 18:40:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2018-12-09 18:40:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 18:40:42,396 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:42,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 54 states and 56 transitions. [2018-12-09 18:40:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-12-09 18:40:42,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 18:40:42,631 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:42,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 55 states and 57 transitions. [2018-12-09 18:40:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-12-09 18:40:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 18:40:42,873 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:43,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 56 states and 58 transitions. [2018-12-09 18:40:43,112 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2018-12-09 18:40:43,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-12-09 18:40:43,112 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 57 states and 59 transitions. [2018-12-09 18:40:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-12-09 18:40:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-09 18:40:43,366 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 58 states and 60 transitions. [2018-12-09 18:40:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-12-09 18:40:43,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-09 18:40:43,613 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:43,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 59 states and 61 transitions. [2018-12-09 18:40:43,865 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2018-12-09 18:40:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 18:40:43,866 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 60 states and 62 transitions. [2018-12-09 18:40:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2018-12-09 18:40:44,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-09 18:40:44,117 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 61 states and 63 transitions. [2018-12-09 18:40:44,376 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-12-09 18:40:44,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 18:40:44,376 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:44,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:44,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 62 states and 64 transitions. [2018-12-09 18:40:44,666 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-12-09 18:40:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-09 18:40:44,666 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 63 states and 65 transitions. [2018-12-09 18:40:44,944 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2018-12-09 18:40:44,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 18:40:44,945 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:45,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 64 states and 66 transitions. [2018-12-09 18:40:45,230 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2018-12-09 18:40:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-12-09 18:40:45,230 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 65 states and 67 transitions. [2018-12-09 18:40:45,500 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2018-12-09 18:40:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-09 18:40:45,500 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:45,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 66 states and 68 transitions. [2018-12-09 18:40:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2018-12-09 18:40:45,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 18:40:45,786 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:46,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:46,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 67 states and 69 transitions. [2018-12-09 18:40:46,077 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2018-12-09 18:40:46,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-09 18:40:46,078 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 68 states and 70 transitions. [2018-12-09 18:40:46,378 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 70 transitions. [2018-12-09 18:40:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 18:40:46,378 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 69 states and 71 transitions. [2018-12-09 18:40:46,669 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2018-12-09 18:40:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-09 18:40:46,670 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:46,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:47,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:47,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 70 states and 72 transitions. [2018-12-09 18:40:47,001 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2018-12-09 18:40:47,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-12-09 18:40:47,001 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:47,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 71 states and 73 transitions. [2018-12-09 18:40:47,319 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 73 transitions. [2018-12-09 18:40:47,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-09 18:40:47,320 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:47,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 72 states and 74 transitions. [2018-12-09 18:40:47,628 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2018-12-09 18:40:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-09 18:40:47,628 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:47,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:47,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 73 states and 75 transitions. [2018-12-09 18:40:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2018-12-09 18:40:47,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-12-09 18:40:47,950 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:48,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:48,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 74 states and 76 transitions. [2018-12-09 18:40:48,278 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2018-12-09 18:40:48,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-09 18:40:48,278 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:48,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:48,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:48,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 75 states and 77 transitions. [2018-12-09 18:40:48,620 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2018-12-09 18:40:48,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-09 18:40:48,620 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:48,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 76 states and 78 transitions. [2018-12-09 18:40:48,949 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2018-12-09 18:40:48,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-09 18:40:48,949 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:49,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 77 states and 79 transitions. [2018-12-09 18:40:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2018-12-09 18:40:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-09 18:40:49,290 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 78 states and 80 transitions. [2018-12-09 18:40:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 80 transitions. [2018-12-09 18:40:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-09 18:40:49,624 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 79 states and 81 transitions. [2018-12-09 18:40:49,962 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions. [2018-12-09 18:40:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-12-09 18:40:49,962 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 80 states and 82 transitions. [2018-12-09 18:40:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2018-12-09 18:40:50,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 18:40:50,302 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:50,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 81 states and 83 transitions. [2018-12-09 18:40:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions. [2018-12-09 18:40:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 18:40:50,668 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:50,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:50,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:50,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 82 states and 84 transitions. [2018-12-09 18:40:50,997 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2018-12-09 18:40:50,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-09 18:40:50,997 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 83 states and 85 transitions. [2018-12-09 18:40:51,350 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2018-12-09 18:40:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-12-09 18:40:51,350 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:51,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:51,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 84 states and 86 transitions. [2018-12-09 18:40:51,726 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 86 transitions. [2018-12-09 18:40:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-09 18:40:51,726 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 85 states and 87 transitions. [2018-12-09 18:40:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2018-12-09 18:40:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 18:40:52,103 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:52,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 86 states and 88 transitions. [2018-12-09 18:40:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 88 transitions. [2018-12-09 18:40:52,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-09 18:40:52,470 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 87 states and 88 transitions. [2018-12-09 18:40:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2018-12-09 18:40:52,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-09 18:40:52,843 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-12-09 18:41:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:41:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 86 states and 87 transitions. [2018-12-09 18:41:39,739 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2018-12-09 18:41:39,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:41:39,739 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 84 iterations. [2018-12-09 18:41:39,745 INFO L779 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-12-09 18:41:39,949 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 11 [2018-12-09 18:41:39,962 INFO L583 CodeCheckObserver]: Invariant with dag size 11 [2018-12-09 18:41:39,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,965 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,966 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,969 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,969 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,969 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,969 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-09 18:41:39,970 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,970 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:39,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 06:41:39 ImpRootNode [2018-12-09 18:41:39,970 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 18:41:39,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:41:39,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:41:39,971 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:41:39,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:40:34" (3/4) ... [2018-12-09 18:41:39,973 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:41:39,979 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-09 18:41:39,979 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 18:41:39,979 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 18:41:39,996 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]] [2018-12-09 18:41:39,996 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-09 18:41:40,002 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_df5b3e60-1378-42d3-9c07-f0ef2ef24fb6/bin-2019/ukojak/witness.graphml [2018-12-09 18:41:40,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:41:40,003 INFO L168 Benchmark]: Toolchain (without parser) took 65415.68 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 355.5 MB). Free memory was 962.4 MB in the beginning and 1.3 GB in the end (delta: -316.5 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:41:40,003 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:41:40,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.77 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:41:40,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.35 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:41:40,004 INFO L168 Benchmark]: Boogie Preprocessor took 39.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-12-09 18:41:40,004 INFO L168 Benchmark]: RCFGBuilder took 127.09 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:41:40,004 INFO L168 Benchmark]: CodeCheck took 65059.78 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 254.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -207.4 MB). Peak memory consumption was 569.2 MB. Max. memory is 11.5 GB. [2018-12-09 18:41:40,005 INFO L168 Benchmark]: Witness Printer took 31.88 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2018-12-09 18:41:40,006 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, 64.8s 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, 18.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39226 GetRequests, 35236 SyntacticMatches, 3318 SemanticMatches, 672 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191394 ImplicationChecksByTransitivity, 61.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.5s 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: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant [2018-12-09 18:41:40,007 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:40,007 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:40,007 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:40,008 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:40,008 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:40,008 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 [2018-12-09 18:41:40,008 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 18:41:40,008 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 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.77 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 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 19.35 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 127.09 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 65059.78 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 254.3 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -207.4 MB). Peak memory consumption was 569.2 MB. Max. memory is 11.5 GB. * Witness Printer took 31.88 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: 10.5 MB). Peak memory consumption was 10.5 MB. 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...