./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85017c4a5a64f245bd703090448e8d5785d54b75 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 20:48:50,689 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:48:50,689 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:48:50,695 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:48:50,696 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:48:50,696 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:48:50,697 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:48:50,697 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:48:50,698 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:48:50,699 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:48:50,699 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:48:50,699 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:48:50,700 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:48:50,700 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:48:50,701 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:48:50,701 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:48:50,702 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:48:50,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:48:50,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:48:50,704 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:48:50,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:48:50,705 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:48:50,706 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:48:50,706 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:48:50,706 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:48:50,707 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:48:50,707 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:48:50,708 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:48:50,708 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:48:50,709 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:48:50,709 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:48:50,709 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:48:50,709 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:48:50,709 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:48:50,710 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:48:50,710 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:48:50,710 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-02 20:48:50,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:48:50,717 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:48:50,718 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:48:50,718 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 20:48:50,718 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:48:50,719 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:48:50,719 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:48:50,719 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 20:48:50,719 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:48:50,719 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:48:50,719 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 20:48:50,719 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:48:50,720 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 20:48:50,720 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 20:48:50,720 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:48:50,720 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:48:50,720 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 20:48:50,720 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 20:48:50,720 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 20:48:50,720 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:48:50,721 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:48:50,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 20:48:50,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:48:50,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:48:50,721 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 20:48:50,721 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 20:48:50,721 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:48:50,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 20:48:50,722 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85017c4a5a64f245bd703090448e8d5785d54b75 [2018-12-02 20:48:50,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:48:50,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:48:50,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:48:50,749 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:48:50,749 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:48:50,750 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c [2018-12-02 20:48:50,786 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/data/ee094b6e2/421a0269184a44c881ffc4932486dd68/FLAGfc5aadb1a [2018-12-02 20:48:51,189 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:48:51,190 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c [2018-12-02 20:48:51,193 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/data/ee094b6e2/421a0269184a44c881ffc4932486dd68/FLAGfc5aadb1a [2018-12-02 20:48:51,202 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/data/ee094b6e2/421a0269184a44c881ffc4932486dd68 [2018-12-02 20:48:51,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:48:51,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:48:51,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:48:51,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:48:51,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:48:51,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ff7dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51, skipping insertion in model container [2018-12-02 20:48:51,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:48:51,223 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:48:51,314 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:48:51,316 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:48:51,324 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:48:51,332 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:48:51,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51 WrapperNode [2018-12-02 20:48:51,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:48:51,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:48:51,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:48:51,333 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:48:51,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:48:51,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:48:51,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:48:51,351 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:48:51,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:48:51,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:48:51,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:48:51,361 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:48:51,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:48:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/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 [2018-12-02 20:48:51,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:48:51,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:48:51,503 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:48:51,504 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-02 20:48:51,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:51 BoogieIcfgContainer [2018-12-02 20:48:51,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:48:51,504 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 20:48:51,504 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 20:48:51,511 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 20:48:51,511 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:51" (1/1) ... [2018-12-02 20:48:51,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:48:51,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-12-02 20:48:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-12-02 20:48:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 20:48:51,539 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:51,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:51,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2018-12-02 20:48:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-12-02 20:48:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 20:48:51,641 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:51,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2018-12-02 20:48:51,750 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2018-12-02 20:48:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 20:48:51,752 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:51,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2018-12-02 20:48:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2018-12-02 20:48:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 20:48:51,850 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:52,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-12-02 20:48:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-12-02 20:48:52,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 20:48:52,074 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:52,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2018-12-02 20:48:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2018-12-02 20:48:52,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 20:48:52,277 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:52,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2018-12-02 20:48:52,438 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2018-12-02 20:48:52,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 20:48:52,439 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:52,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 54 transitions. [2018-12-02 20:48:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 54 transitions. [2018-12-02 20:48:52,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 20:48:52,645 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:52,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 34 states and 55 transitions. [2018-12-02 20:48:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 55 transitions. [2018-12-02 20:48:52,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 20:48:52,720 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:52,760 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 20:48:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 36 states and 60 transitions. [2018-12-02 20:48:52,984 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 60 transitions. [2018-12-02 20:48:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 20:48:52,984 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:53,110 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 64 transitions. [2018-12-02 20:48:53,447 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2018-12-02 20:48:53,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 20:48:53,447 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:53,458 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:53,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 42 states and 69 transitions. [2018-12-02 20:48:53,659 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2018-12-02 20:48:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 20:48:53,659 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 46 states and 82 transitions. [2018-12-02 20:48:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 82 transitions. [2018-12-02 20:48:53,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 20:48:53,863 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:54,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 49 states and 90 transitions. [2018-12-02 20:48:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 90 transitions. [2018-12-02 20:48:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 20:48:54,058 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:54,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 51 states and 91 transitions. [2018-12-02 20:48:54,151 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 91 transitions. [2018-12-02 20:48:54,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 20:48:54,151 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:54,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:54,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 53 states and 92 transitions. [2018-12-02 20:48:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 92 transitions. [2018-12-02 20:48:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:48:54,251 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 20:48:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 53 states and 91 transitions. [2018-12-02 20:48:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 91 transitions. [2018-12-02 20:48:54,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:48:54,457 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 20:48:54,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:54,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 54 states and 92 transitions. [2018-12-02 20:48:54,655 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2018-12-02 20:48:54,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 20:48:54,656 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:54,798 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 56 states and 94 transitions. [2018-12-02 20:48:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 94 transitions. [2018-12-02 20:48:55,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 20:48:55,148 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:55,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 61 states and 105 transitions. [2018-12-02 20:48:55,999 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 105 transitions. [2018-12-02 20:48:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 20:48:56,000 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:56,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:56,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 62 states and 107 transitions. [2018-12-02 20:48:56,134 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 107 transitions. [2018-12-02 20:48:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 20:48:56,134 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 64 states and 108 transitions. [2018-12-02 20:48:56,274 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 108 transitions. [2018-12-02 20:48:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 20:48:56,275 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-12-02 20:48:56,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 67 states and 123 transitions. [2018-12-02 20:48:56,707 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 123 transitions. [2018-12-02 20:48:56,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:48:56,707 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:56,745 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 72 states and 139 transitions. [2018-12-02 20:48:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 139 transitions. [2018-12-02 20:48:57,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:48:57,237 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:57,244 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:57,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:57,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 74 states and 140 transitions. [2018-12-02 20:48:57,361 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 140 transitions. [2018-12-02 20:48:57,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:48:57,361 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 76 states and 141 transitions. [2018-12-02 20:48:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 141 transitions. [2018-12-02 20:48:57,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:48:57,498 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 78 states and 142 transitions. [2018-12-02 20:48:57,622 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 142 transitions. [2018-12-02 20:48:57,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:48:57,622 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:57,628 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-12-02 20:48:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 78 states and 141 transitions. [2018-12-02 20:48:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 141 transitions. [2018-12-02 20:48:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:48:57,876 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 79 states and 139 transitions. [2018-12-02 20:48:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 139 transitions. [2018-12-02 20:48:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:48:58,116 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:58,153 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 80 states and 138 transitions. [2018-12-02 20:48:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 138 transitions. [2018-12-02 20:48:58,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:48:58,388 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 79 states and 135 transitions. [2018-12-02 20:48:58,557 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 135 transitions. [2018-12-02 20:48:58,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:48:58,557 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 84 states and 150 transitions. [2018-12-02 20:48:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 150 transitions. [2018-12-02 20:48:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:48:59,076 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 86 states and 152 transitions. [2018-12-02 20:48:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 152 transitions. [2018-12-02 20:48:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:48:59,356 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:59,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 88 states and 153 transitions. [2018-12-02 20:48:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 153 transitions. [2018-12-02 20:48:59,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:48:59,534 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:59,542 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 90 states and 154 transitions. [2018-12-02 20:48:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 154 transitions. [2018-12-02 20:48:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:48:59,674 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:59,972 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:00,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 92 states and 157 transitions. [2018-12-02 20:49:00,649 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 157 transitions. [2018-12-02 20:49:00,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:49:00,649 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:00,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 94 states and 158 transitions. [2018-12-02 20:49:00,895 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 158 transitions. [2018-12-02 20:49:00,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:49:00,896 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:01,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:01,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 94 states and 157 transitions. [2018-12-02 20:49:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 157 transitions. [2018-12-02 20:49:01,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 20:49:01,116 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 99 states and 173 transitions. [2018-12-02 20:49:01,862 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 173 transitions. [2018-12-02 20:49:01,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 20:49:01,862 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:02,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:02,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 101 states and 174 transitions. [2018-12-02 20:49:02,037 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 174 transitions. [2018-12-02 20:49:02,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 20:49:02,037 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:02,046 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 103 states and 175 transitions. [2018-12-02 20:49:02,224 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 175 transitions. [2018-12-02 20:49:02,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-02 20:49:02,224 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 105 states and 176 transitions. [2018-12-02 20:49:02,389 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 176 transitions. [2018-12-02 20:49:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-02 20:49:02,389 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:03,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 108 states and 181 transitions. [2018-12-02 20:49:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 181 transitions. [2018-12-02 20:49:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-02 20:49:03,317 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:03,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:03,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 110 states and 182 transitions. [2018-12-02 20:49:03,610 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 182 transitions. [2018-12-02 20:49:03,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-02 20:49:03,610 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 38 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 111 states and 180 transitions. [2018-12-02 20:49:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 180 transitions. [2018-12-02 20:49:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 20:49:04,208 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:04,290 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 116 states and 196 transitions. [2018-12-02 20:49:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 196 transitions. [2018-12-02 20:49:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 20:49:05,032 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 118 states and 197 transitions. [2018-12-02 20:49:05,235 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 197 transitions. [2018-12-02 20:49:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 20:49:05,236 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:05,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:05,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 120 states and 198 transitions. [2018-12-02 20:49:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 198 transitions. [2018-12-02 20:49:05,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-02 20:49:05,418 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:05,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 122 states and 199 transitions. [2018-12-02 20:49:05,628 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 199 transitions. [2018-12-02 20:49:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-02 20:49:05,628 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 87 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:06,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 123 states and 201 transitions. [2018-12-02 20:49:06,586 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 201 transitions. [2018-12-02 20:49:06,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-02 20:49:06,586 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 87 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:07,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 122 states and 198 transitions. [2018-12-02 20:49:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 198 transitions. [2018-12-02 20:49:07,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 20:49:07,314 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 127 states and 213 transitions. [2018-12-02 20:49:08,020 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 213 transitions. [2018-12-02 20:49:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 20:49:08,020 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:08,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 129 states and 214 transitions. [2018-12-02 20:49:08,218 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 214 transitions. [2018-12-02 20:49:08,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 20:49:08,218 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:08,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 131 states and 216 transitions. [2018-12-02 20:49:08,602 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 216 transitions. [2018-12-02 20:49:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 20:49:08,602 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:08,608 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:08,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:08,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 133 states and 217 transitions. [2018-12-02 20:49:08,808 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 217 transitions. [2018-12-02 20:49:08,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-02 20:49:08,808 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 119 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 134 states and 219 transitions. [2018-12-02 20:49:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 219 transitions. [2018-12-02 20:49:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-02 20:49:09,373 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 119 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:09,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 133 states and 216 transitions. [2018-12-02 20:49:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 216 transitions. [2018-12-02 20:49:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-02 20:49:09,796 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 138 states and 231 transitions. [2018-12-02 20:49:10,598 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 231 transitions. [2018-12-02 20:49:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-02 20:49:10,599 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 140 states and 232 transitions. [2018-12-02 20:49:10,815 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 232 transitions. [2018-12-02 20:49:10,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-02 20:49:10,815 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 142 states and 234 transitions. [2018-12-02 20:49:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 234 transitions. [2018-12-02 20:49:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-02 20:49:11,260 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 144 states and 235 transitions. [2018-12-02 20:49:11,492 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 235 transitions. [2018-12-02 20:49:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-02 20:49:11,492 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 156 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:12,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 145 states and 237 transitions. [2018-12-02 20:49:12,182 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 237 transitions. [2018-12-02 20:49:12,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-02 20:49:12,183 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:12,438 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 156 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:12,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 144 states and 234 transitions. [2018-12-02 20:49:12,696 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 234 transitions. [2018-12-02 20:49:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-02 20:49:12,696 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:13,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 149 states and 249 transitions. [2018-12-02 20:49:13,550 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 249 transitions. [2018-12-02 20:49:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-02 20:49:13,551 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:13,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 151 states and 250 transitions. [2018-12-02 20:49:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 250 transitions. [2018-12-02 20:49:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-02 20:49:13,789 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:13,795 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:14,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 153 states and 251 transitions. [2018-12-02 20:49:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 251 transitions. [2018-12-02 20:49:14,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-02 20:49:14,042 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:14,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 155 states and 253 transitions. [2018-12-02 20:49:14,559 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 253 transitions. [2018-12-02 20:49:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-02 20:49:14,559 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 198 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:15,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 156 states and 255 transitions. [2018-12-02 20:49:15,148 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 255 transitions. [2018-12-02 20:49:15,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-02 20:49:15,148 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:15,514 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 198 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:15,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 155 states and 252 transitions. [2018-12-02 20:49:15,868 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 252 transitions. [2018-12-02 20:49:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-02 20:49:15,869 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:15,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 160 states and 267 transitions. [2018-12-02 20:49:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 267 transitions. [2018-12-02 20:49:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-02 20:49:16,830 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:17,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 162 states and 269 transitions. [2018-12-02 20:49:17,299 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 269 transitions. [2018-12-02 20:49:17,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-02 20:49:17,300 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:17,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 164 states and 270 transitions. [2018-12-02 20:49:17,555 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 270 transitions. [2018-12-02 20:49:17,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-02 20:49:17,555 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:17,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:17,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 166 states and 271 transitions. [2018-12-02 20:49:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 271 transitions. [2018-12-02 20:49:17,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-02 20:49:17,824 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 245 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:18,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 167 states and 273 transitions. [2018-12-02 20:49:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 273 transitions. [2018-12-02 20:49:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-02 20:49:18,672 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:19,044 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 245 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:19,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 166 states and 270 transitions. [2018-12-02 20:49:19,455 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 270 transitions. [2018-12-02 20:49:19,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-02 20:49:19,456 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 171 states and 285 transitions. [2018-12-02 20:49:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 285 transitions. [2018-12-02 20:49:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-02 20:49:20,537 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 173 states and 286 transitions. [2018-12-02 20:49:20,810 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 286 transitions. [2018-12-02 20:49:20,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-02 20:49:20,811 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 175 states and 287 transitions. [2018-12-02 20:49:21,088 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 287 transitions. [2018-12-02 20:49:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-02 20:49:21,088 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:21,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:21,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 177 states and 289 transitions. [2018-12-02 20:49:21,617 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 289 transitions. [2018-12-02 20:49:21,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-02 20:49:21,618 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 297 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:22,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 178 states and 291 transitions. [2018-12-02 20:49:22,468 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 291 transitions. [2018-12-02 20:49:22,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-02 20:49:22,469 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 297 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:24,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 177 states and 288 transitions. [2018-12-02 20:49:24,162 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 288 transitions. [2018-12-02 20:49:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-02 20:49:24,162 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 182 states and 303 transitions. [2018-12-02 20:49:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 303 transitions. [2018-12-02 20:49:26,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-02 20:49:26,321 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 184 states and 304 transitions. [2018-12-02 20:49:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 304 transitions. [2018-12-02 20:49:26,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-02 20:49:26,618 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 186 states and 305 transitions. [2018-12-02 20:49:26,934 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 305 transitions. [2018-12-02 20:49:26,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-02 20:49:26,934 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:26,942 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 188 states and 307 transitions. [2018-12-02 20:49:27,764 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 307 transitions. [2018-12-02 20:49:27,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-12-02 20:49:27,765 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 354 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:30,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 189 states and 309 transitions. [2018-12-02 20:49:30,326 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 309 transitions. [2018-12-02 20:49:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-12-02 20:49:30,327 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 354 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:31,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 188 states and 306 transitions. [2018-12-02 20:49:31,746 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 306 transitions. [2018-12-02 20:49:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-02 20:49:31,747 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:34,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 193 states and 322 transitions. [2018-12-02 20:49:34,535 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 322 transitions. [2018-12-02 20:49:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-02 20:49:34,535 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 195 states and 323 transitions. [2018-12-02 20:49:34,845 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 323 transitions. [2018-12-02 20:49:34,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-02 20:49:34,845 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:35,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 197 states and 324 transitions. [2018-12-02 20:49:35,175 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 324 transitions. [2018-12-02 20:49:35,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-02 20:49:35,175 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 199 states and 325 transitions. [2018-12-02 20:49:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 325 transitions. [2018-12-02 20:49:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-02 20:49:35,500 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 416 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:37,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 199 states and 324 transitions. [2018-12-02 20:49:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 324 transitions. [2018-12-02 20:49:37,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-02 20:49:37,286 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:37,394 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:38,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:38,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 204 states and 339 transitions. [2018-12-02 20:49:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 339 transitions. [2018-12-02 20:49:38,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-02 20:49:38,631 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 206 states and 341 transitions. [2018-12-02 20:49:39,320 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 341 transitions. [2018-12-02 20:49:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-02 20:49:39,320 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 208 states and 342 transitions. [2018-12-02 20:49:39,711 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 342 transitions. [2018-12-02 20:49:39,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-02 20:49:39,711 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:40,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:40,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 210 states and 343 transitions. [2018-12-02 20:49:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 343 transitions. [2018-12-02 20:49:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 20:49:40,035 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:41,003 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 483 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:41,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 211 states and 345 transitions. [2018-12-02 20:49:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 345 transitions. [2018-12-02 20:49:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-02 20:49:41,659 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:42,379 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 483 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 210 states and 342 transitions. [2018-12-02 20:49:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 342 transitions. [2018-12-02 20:49:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-02 20:49:42,725 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:44,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:44,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 215 states and 357 transitions. [2018-12-02 20:49:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 357 transitions. [2018-12-02 20:49:44,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-02 20:49:44,232 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 217 states and 358 transitions. [2018-12-02 20:49:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 358 transitions. [2018-12-02 20:49:44,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-02 20:49:44,608 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:45,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 219 states and 359 transitions. [2018-12-02 20:49:45,427 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 359 transitions. [2018-12-02 20:49:45,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-12-02 20:49:45,427 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 0 proven. 585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 221 states and 361 transitions. [2018-12-02 20:49:46,134 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 361 transitions. [2018-12-02 20:49:46,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 20:49:46,134 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 555 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:48,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:48,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 222 states and 363 transitions. [2018-12-02 20:49:48,359 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 363 transitions. [2018-12-02 20:49:48,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 20:49:48,360 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 555 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:49,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 221 states and 360 transitions. [2018-12-02 20:49:49,809 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 360 transitions. [2018-12-02 20:49:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-02 20:49:49,810 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:51,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:51,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 226 states and 375 transitions. [2018-12-02 20:49:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 375 transitions. [2018-12-02 20:49:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-02 20:49:51,403 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:52,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 228 states and 377 transitions. [2018-12-02 20:49:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 377 transitions. [2018-12-02 20:49:52,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-02 20:49:52,088 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 230 states and 378 transitions. [2018-12-02 20:49:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 378 transitions. [2018-12-02 20:49:52,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-02 20:49:52,488 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 0 proven. 664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:53,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:53,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 232 states and 379 transitions. [2018-12-02 20:49:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 379 transitions. [2018-12-02 20:49:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-02 20:49:53,423 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:54,769 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 632 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:55,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 233 states and 381 transitions. [2018-12-02 20:49:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 381 transitions. [2018-12-02 20:49:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-02 20:49:55,547 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:56,509 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 632 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:56,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 232 states and 378 transitions. [2018-12-02 20:49:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 378 transitions. [2018-12-02 20:49:56,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-12-02 20:49:56,912 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 244 proven. 21 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-12-02 20:50:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:04,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 244 states and 404 transitions. [2018-12-02 20:50:04,045 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 404 transitions. [2018-12-02 20:50:04,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-12-02 20:50:04,045 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:50:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:50:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 244 proven. 21 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-12-02 20:50:04,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:04,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 246 states and 406 transitions. [2018-12-02 20:50:04,580 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 406 transitions. [2018-12-02 20:50:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-12-02 20:50:04,581 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:50:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:50:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 244 proven. 21 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-12-02 20:50:04,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 248 states and 408 transitions. [2018-12-02 20:50:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 408 transitions. [2018-12-02 20:50:04,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-12-02 20:50:04,969 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:50:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:50:04,980 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 244 proven. 21 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-12-02 20:50:05,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 250 states and 410 transitions. [2018-12-02 20:50:05,339 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 410 transitions. [2018-12-02 20:50:05,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-12-02 20:50:05,339 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:50:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:50:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 244 proven. 21 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-12-02 20:50:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:05,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 252 states and 411 transitions. [2018-12-02 20:50:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 411 transitions. [2018-12-02 20:50:05,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-02 20:50:05,892 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:50:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:50:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 714 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:50:08,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 252 states and 410 transitions. [2018-12-02 20:50:08,480 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 410 transitions. [2018-12-02 20:50:08,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-02 20:50:08,480 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:50:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:50:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 261 proven. 21 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2018-12-02 20:50:09,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:09,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 187 states and 252 transitions. [2018-12-02 20:50:09,884 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 252 transitions. [2018-12-02 20:50:09,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 20:50:09,884 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 117 iterations. [2018-12-02 20:50:09,890 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-02 20:50:11,157 WARN L180 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 176 DAG size of output: 175 [2018-12-02 20:50:12,327 WARN L180 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 155 DAG size of output: 154 [2018-12-02 20:50:12,450 INFO L583 CodeCheckObserver]: Invariant with dag size 100 [2018-12-02 20:50:12,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 08:50:12 ImpRootNode [2018-12-02 20:50:12,461 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 20:50:12,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:50:12,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:50:12,462 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:50:12,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:51" (3/4) ... [2018-12-02 20:50:12,464 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 20:50:12,469 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 20:50:12,470 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 20:50:12,470 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 20:50:12,494 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_39b52738-5d71-4e78-ad4b-e87ffee90e41/bin-2019/ukojak/witness.graphml [2018-12-02 20:50:12,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:50:12,495 INFO L168 Benchmark]: Toolchain (without parser) took 81289.78 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 880.3 MB). Free memory was 953.3 MB in the beginning and 1.5 GB in the end (delta: -588.2 MB). Peak memory consumption was 292.1 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:12,495 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:50:12,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.47 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:12,495 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.84 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 942.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:12,496 INFO L168 Benchmark]: Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:50:12,496 INFO L168 Benchmark]: RCFGBuilder took 142.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:12,496 INFO L168 Benchmark]: CodeCheck took 80957.00 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 772.8 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -447.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-12-02 20:50:12,496 INFO L168 Benchmark]: Witness Printer took 32.70 ms. Allocated memory is still 1.9 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:50:12,498 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, 14 locations, 4 error locations. SAFE Result, 78.3s OverallTime, 117 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, -1185588160 SDslu, 0 SDs, 0 SdLazy, -691713660 SolverSat, 1516875864 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55658 GetRequests, 49878 SyntacticMatches, 4848 SemanticMatches, 932 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752878 ImplicationChecksByTransitivity, 74.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.8s InterpolantComputationTime, 5438 NumberOfCodeBlocks, 5438 NumberOfCodeBlocksAsserted, 116 NumberOfCheckSat, 5322 ConstructedInterpolants, 0 QuantifiedInterpolants, 929812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 116 InterpolantComputations, 9 PerfectInterpolantSequences, 12170/29750 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((y <= 11 && x <= y + 2147483646) && 10 < y) || ((x <= y + 2147483646 && 9 < y) && y <= 10)) || ((y <= 13 && x <= y + 2147483646) && 12 < y)) || ((y <= 1 && x <= y + 2147483646) && 1 <= y)) || ((y <= 5 && x <= 2 * y + 2147483637) && 4 < y)) || ((14 < y && x <= y + 2147483646) && y <= 15)) || ((15 < y && x <= y + 2147483631) && y <= 16)) || ((x <= 2 * y + 2147483641 && y <= 3) && 2 < y)) || ((x <= y + 2147483646 && 7 < y) && y <= 8)) || ((3 < y && y <= 4) && x <= y + 2147483646)) || ((y <= 9 && x <= y + 2147483646) && 8 < y)) || ((x <= y + 2147483646 && 11 < y) && y <= 12)) || ((17 < y && x + 2 * y <= 2147483650) && y <= 2147483647)) || ((x <= y + 2147483646 && 13 < y) && y <= 14)) || ((y <= 2 && x <= 2 * y + 2147483643) && 1 < y)) || ((x <= 2 * y + 2147483635 && y <= 6) && 5 < y)) || ((x <= y + 2147483646 && 6 < y) && y <= 7)) || ((x + y <= 2147483648 && 16 < y) && y <= 17) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 126.47 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.84 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 942.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 142.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * CodeCheck took 80957.00 ms. Allocated memory was 1.1 GB in the beginning and 1.9 GB in the end (delta: 772.8 MB). Free memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: -447.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 32.70 ms. Allocated memory is still 1.9 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...