./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-sorted_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-sorted_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8be34918f5cf463066a3551693e083428b9e6ee2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 20:39:38,091 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:39:38,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:39:38,098 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:39:38,098 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:39:38,098 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:39:38,099 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:39:38,100 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:39:38,101 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:39:38,101 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:39:38,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:39:38,102 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:39:38,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:39:38,103 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:39:38,103 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:39:38,104 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:39:38,104 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:39:38,105 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:39:38,106 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:39:38,106 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:39:38,107 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:39:38,107 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:39:38,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:39:38,109 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:39:38,109 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:39:38,109 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:39:38,110 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:39:38,110 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:39:38,111 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:39:38,111 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:39:38,111 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:39:38,112 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:39:38,112 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:39:38,112 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:39:38,112 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:39:38,113 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:39:38,113 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-02 20:39:38,120 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:39:38,120 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:39:38,121 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:39:38,121 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-02 20:39:38,121 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 20:39:38,121 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 20:39:38,122 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:39:38,122 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:39:38,122 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:39:38,122 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:39:38,122 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:39:38,122 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 20:39:38,122 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:39:38,123 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 20:39:38,123 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:39:38,123 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:39:38,123 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:39:38,123 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 20:39:38,123 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 20:39:38,123 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 20:39:38,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:39:38,124 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:39:38,124 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 20:39:38,124 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:39:38,124 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:39:38,124 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 20:39:38,124 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 20:39:38,124 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:39:38,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 20:39:38,125 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_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8be34918f5cf463066a3551693e083428b9e6ee2 [2018-12-02 20:39:38,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:39:38,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:39:38,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:39:38,152 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:39:38,152 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:39:38,153 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-12-02 20:39:38,188 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/data/7bfcd1cce/c6caca0477494cc69b87e3c157bd0dbd/FLAGd78d22c5e [2018-12-02 20:39:38,602 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:39:38,602 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/sv-benchmarks/c/forester-heap/sll-sorted_false-unreach-call_false-valid-memcleanup.i [2018-12-02 20:39:38,608 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/data/7bfcd1cce/c6caca0477494cc69b87e3c157bd0dbd/FLAGd78d22c5e [2018-12-02 20:39:38,617 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/data/7bfcd1cce/c6caca0477494cc69b87e3c157bd0dbd [2018-12-02 20:39:38,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:39:38,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:39:38,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:39:38,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:39:38,622 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:39:38,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159e01e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38, skipping insertion in model container [2018-12-02 20:39:38,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:39:38,648 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:39:38,795 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:39:38,802 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:39:38,863 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:39:38,883 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:39:38,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38 WrapperNode [2018-12-02 20:39:38,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:39:38,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:39:38,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:39:38,884 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:39:38,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:39:38,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:39:38,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:39:38,910 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:39:38,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... [2018-12-02 20:39:38,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:39:38,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:39:38,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:39:38,929 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:39:38,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:39:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/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 20:39:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:39:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 20:39:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 20:39:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 20:39:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 20:39:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:39:38,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:39:38,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:39:39,277 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:39:39,277 INFO L280 CfgBuilder]: Removed 22 assue(true) statements. [2018-12-02 20:39:39,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:39:39 BoogieIcfgContainer [2018-12-02 20:39:39,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:39:39,277 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 20:39:39,278 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 20:39:39,284 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 20:39:39,285 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:39:39" (1/1) ... [2018-12-02 20:39:39,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:39:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:39,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 44 states and 71 transitions. [2018-12-02 20:39:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2018-12-02 20:39:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 20:39:39,315 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:39,396 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 20:39:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 67 transitions. [2018-12-02 20:39:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2018-12-02 20:39:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 20:39:39,401 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:39,426 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 20:39:39,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:39,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 46 states and 70 transitions. [2018-12-02 20:39:39,455 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2018-12-02 20:39:39,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 20:39:39,455 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:39:39,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2018-12-02 20:39:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2018-12-02 20:39:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-02 20:39:39,628 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:39:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:39,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 44 states and 63 transitions. [2018-12-02 20:39:39,647 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2018-12-02 20:39:39,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-02 20:39:39,647 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:39,800 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 20:39:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 58 states and 88 transitions. [2018-12-02 20:39:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 88 transitions. [2018-12-02 20:39:40,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 20:39:40,325 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:39:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 68 states and 110 transitions. [2018-12-02 20:39:42,202 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 110 transitions. [2018-12-02 20:39:42,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 20:39:42,203 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:39:42,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:42,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 70 states and 117 transitions. [2018-12-02 20:39:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 117 transitions. [2018-12-02 20:39:42,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 20:39:42,580 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:42,912 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 20:39:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 80 states and 137 transitions. [2018-12-02 20:39:45,054 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2018-12-02 20:39:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 20:39:45,055 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:39:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 80 states and 131 transitions. [2018-12-02 20:39:45,074 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 131 transitions. [2018-12-02 20:39:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 20:39:45,075 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:39:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 80 states and 126 transitions. [2018-12-02 20:39:45,093 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2018-12-02 20:39:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 20:39:45,094 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:45,629 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 20:39:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 95 states and 159 transitions. [2018-12-02 20:39:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 159 transitions. [2018-12-02 20:39:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:39:48,258 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:49,113 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:39:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 102 states and 173 transitions. [2018-12-02 20:39:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 173 transitions. [2018-12-02 20:39:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:39:51,774 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:51,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:39:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 104 states and 185 transitions. [2018-12-02 20:39:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 185 transitions. [2018-12-02 20:39:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:39:52,477 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:39:53,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 106 states and 193 transitions. [2018-12-02 20:39:53,104 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 193 transitions. [2018-12-02 20:39:53,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:39:53,104 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:53,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:39:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 113 states and 213 transitions. [2018-12-02 20:39:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 213 transitions. [2018-12-02 20:39:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:39:56,287 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:56,330 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:39:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 121 states and 234 transitions. [2018-12-02 20:39:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 234 transitions. [2018-12-02 20:39:58,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:39:58,329 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:39:59,011 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 20:39:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:39:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 124 states and 239 transitions. [2018-12-02 20:39:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 239 transitions. [2018-12-02 20:39:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:39:59,301 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:39:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:05,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:05,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 135 states and 267 transitions. [2018-12-02 20:40:05,512 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 267 transitions. [2018-12-02 20:40:05,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:40:05,512 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 141 states and 277 transitions. [2018-12-02 20:40:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 277 transitions. [2018-12-02 20:40:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:40:08,570 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:09,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 146 states and 286 transitions. [2018-12-02 20:40:09,828 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 286 transitions. [2018-12-02 20:40:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:40:09,828 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:40:11,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 149 states and 289 transitions. [2018-12-02 20:40:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 289 transitions. [2018-12-02 20:40:11,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:40:11,067 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 153 states and 292 transitions. [2018-12-02 20:40:13,821 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 292 transitions. [2018-12-02 20:40:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:40:13,821 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 156 states and 302 transitions. [2018-12-02 20:40:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 302 transitions. [2018-12-02 20:40:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:40:18,480 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:40:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 163 states and 318 transitions. [2018-12-02 20:40:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 318 transitions. [2018-12-02 20:40:21,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:40:21,271 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:22,772 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:28,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 173 states and 354 transitions. [2018-12-02 20:40:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 354 transitions. [2018-12-02 20:40:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:40:28,030 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:29,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 175 states and 362 transitions. [2018-12-02 20:40:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 362 transitions. [2018-12-02 20:40:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:40:29,077 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:29,401 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 177 states and 371 transitions. [2018-12-02 20:40:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 371 transitions. [2018-12-02 20:40:30,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:40:30,257 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 189 states and 404 transitions. [2018-12-02 20:40:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 404 transitions. [2018-12-02 20:40:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:40:38,506 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:39,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 191 states and 409 transitions. [2018-12-02 20:40:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 409 transitions. [2018-12-02 20:40:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:40:39,829 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:41,814 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:40:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:40:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 201 states and 430 transitions. [2018-12-02 20:40:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 430 transitions. [2018-12-02 20:40:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:40:49,393 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:40:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:40:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 214 states and 470 transitions. [2018-12-02 20:41:01,525 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 470 transitions. [2018-12-02 20:41:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:41:01,526 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 216 states and 475 transitions. [2018-12-02 20:41:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 475 transitions. [2018-12-02 20:41:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:41:03,708 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:03,968 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:05,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 218 states and 479 transitions. [2018-12-02 20:41:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 479 transitions. [2018-12-02 20:41:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:41:05,708 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:09,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 223 states and 477 transitions. [2018-12-02 20:41:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 477 transitions. [2018-12-02 20:41:09,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 20:41:09,966 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:10,267 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:11,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 224 states and 479 transitions. [2018-12-02 20:41:11,271 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 479 transitions. [2018-12-02 20:41:11,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:11,272 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 20:41:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:14,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 228 states and 491 transitions. [2018-12-02 20:41:14,044 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 491 transitions. [2018-12-02 20:41:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:14,044 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:28,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:28,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 238 states and 529 transitions. [2018-12-02 20:41:28,485 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 529 transitions. [2018-12-02 20:41:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:28,485 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:28,577 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 20:41:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 241 states and 535 transitions. [2018-12-02 20:41:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 535 transitions. [2018-12-02 20:41:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:31,101 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 245 states and 563 transitions. [2018-12-02 20:41:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 563 transitions. [2018-12-02 20:41:38,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:38,225 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:39,860 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 20:41:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 258 states and 587 transitions. [2018-12-02 20:41:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 587 transitions. [2018-12-02 20:41:48,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:48,965 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 260 states and 601 transitions. [2018-12-02 20:41:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 601 transitions. [2018-12-02 20:41:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:50,955 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 262 states and 615 transitions. [2018-12-02 20:41:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 615 transitions. [2018-12-02 20:41:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:53,272 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:55,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 264 states and 621 transitions. [2018-12-02 20:41:55,126 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 621 transitions. [2018-12-02 20:41:55,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:55,127 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:41:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:41:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 264 states and 619 transitions. [2018-12-02 20:41:57,089 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 619 transitions. [2018-12-02 20:41:57,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:41:57,089 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:41:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:41:57,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:42:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:42:01,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 269 states and 631 transitions. [2018-12-02 20:42:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 631 transitions. [2018-12-02 20:42:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:42:01,534 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:42:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:42:04,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:42:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:42:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 277 states and 663 transitions. [2018-12-02 20:42:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 663 transitions. [2018-12-02 20:42:12,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:42:12,331 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:42:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:42:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:42:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:42:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 285 states and 690 transitions. [2018-12-02 20:42:27,466 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 690 transitions. [2018-12-02 20:42:27,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:42:27,467 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:42:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:42:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:42:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:42:45,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 298 states and 738 transitions. [2018-12-02 20:42:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 738 transitions. [2018-12-02 20:42:45,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:42:45,613 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:42:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:42:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:42:58,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:42:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 305 states and 751 transitions. [2018-12-02 20:42:58,356 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 751 transitions. [2018-12-02 20:42:58,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:42:58,356 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:42:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:01,241 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-02 20:43:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:43:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 305 states and 719 transitions. [2018-12-02 20:43:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 719 transitions. [2018-12-02 20:43:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:43:09,126 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:43:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:43:11,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:43:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 307 states and 723 transitions. [2018-12-02 20:43:11,186 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 723 transitions. [2018-12-02 20:43:11,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:43:11,186 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:43:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:43:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:43:12,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 308 states and 724 transitions. [2018-12-02 20:43:12,986 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 724 transitions. [2018-12-02 20:43:12,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:43:12,987 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:43:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:43:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:43:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 312 states and 732 transitions. [2018-12-02 20:43:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 732 transitions. [2018-12-02 20:43:18,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:43:18,278 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:43:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:18,506 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:43:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:43:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 314 states and 734 transitions. [2018-12-02 20:43:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 734 transitions. [2018-12-02 20:43:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 20:43:21,505 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:43:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:43:30,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:43:30,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 320 states and 746 transitions. [2018-12-02 20:43:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 746 transitions. [2018-12-02 20:43:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:43:30,325 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:43:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:35,240 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:43:47,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:43:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 325 states and 758 transitions. [2018-12-02 20:43:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 758 transitions. [2018-12-02 20:43:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:43:47,131 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:43:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:43:50,103 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2018-12-02 20:43:53,783 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:43:56,038 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2018-12-02 20:44:10,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:44:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 335 states and 807 transitions. [2018-12-02 20:44:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 807 transitions. [2018-12-02 20:44:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:44:10,342 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:44:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:44:10,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 20:44:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:44:15,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 340 states and 821 transitions. [2018-12-02 20:44:15,973 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 821 transitions. [2018-12-02 20:44:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:44:15,974 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:44:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:44:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 20:44:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:44:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 342 states and 824 transitions. [2018-12-02 20:44:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 824 transitions. [2018-12-02 20:44:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:44:21,263 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:44:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:44:21,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:44:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:44:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 348 states and 837 transitions. [2018-12-02 20:44:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 837 transitions. [2018-12-02 20:44:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:44:27,678 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:44:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:44:28,339 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:44:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:44:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 351 states and 849 transitions. [2018-12-02 20:44:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 849 transitions. [2018-12-02 20:44:32,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:44:32,672 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:44:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:44:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:44:36,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:44:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 353 states and 854 transitions. [2018-12-02 20:44:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 854 transitions. [2018-12-02 20:44:36,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:44:36,978 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:44:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:44:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:45:04,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:45:04,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 362 states and 876 transitions. [2018-12-02 20:45:04,796 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 876 transitions. [2018-12-02 20:45:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 20:45:04,796 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:45:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:45:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 20:45:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:45:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 364 states and 879 transitions. [2018-12-02 20:45:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 879 transitions. [2018-12-02 20:45:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:45:07,836 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:45:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:45:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:45:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:45:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 377 states and 928 transitions. [2018-12-02 20:45:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 928 transitions. [2018-12-02 20:45:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:45:34,738 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:45:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:45:37,879 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2018-12-02 20:45:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:45:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:45:58,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 387 states and 966 transitions. [2018-12-02 20:45:58,780 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 966 transitions. [2018-12-02 20:45:58,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:45:58,780 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:45:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:46:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:46:02,615 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2018-12-02 20:46:03,117 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2018-12-02 20:46:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:46:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 393 states and 978 transitions. [2018-12-02 20:46:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 978 transitions. [2018-12-02 20:46:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:46:09,128 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:46:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:46:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 20:46:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:46:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 398 states and 984 transitions. [2018-12-02 20:46:16,571 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 984 transitions. [2018-12-02 20:46:16,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:46:16,571 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:46:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:46:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:46:44,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:46:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 410 states and 1036 transitions. [2018-12-02 20:46:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 1036 transitions. [2018-12-02 20:46:44,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:46:44,297 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:46:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:46:44,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-02 20:46:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:46:46,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 411 states and 1038 transitions. [2018-12-02 20:46:46,353 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 1038 transitions. [2018-12-02 20:46:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:46:46,353 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:46:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:46:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:47:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:47:31,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 426 states and 1089 transitions. [2018-12-02 20:47:31,553 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 1089 transitions. [2018-12-02 20:47:31,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:47:31,554 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:47:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:47:36,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:47:58,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:47:58,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 441 states and 1121 transitions. [2018-12-02 20:47:58,234 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 1121 transitions. [2018-12-02 20:47:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:47:58,235 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:47:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:47:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:00,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 442 states and 1123 transitions. [2018-12-02 20:48:00,474 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1123 transitions. [2018-12-02 20:48:00,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:48:00,475 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 444 states and 1127 transitions. [2018-12-02 20:48:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1127 transitions. [2018-12-02 20:48:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:48:05,600 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 446 states and 1129 transitions. [2018-12-02 20:48:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 1129 transitions. [2018-12-02 20:48:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:48:09,306 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 447 states and 1130 transitions. [2018-12-02 20:48:12,305 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 1130 transitions. [2018-12-02 20:48:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:48:12,306 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:28,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:28,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 457 states and 1158 transitions. [2018-12-02 20:48:28,321 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 1158 transitions. [2018-12-02 20:48:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:48:28,321 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 458 states and 1159 transitions. [2018-12-02 20:48:30,292 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1159 transitions. [2018-12-02 20:48:30,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 20:48:30,293 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 460 states and 1161 transitions. [2018-12-02 20:48:34,136 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1161 transitions. [2018-12-02 20:48:34,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:48:34,137 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:48:38,802 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:48:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:48:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 467 states and 1172 transitions. [2018-12-02 20:48:55,535 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1172 transitions. [2018-12-02 20:48:55,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:48:55,535 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:48:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:05,610 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 477 states and 1217 transitions. [2018-12-02 20:49:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 1217 transitions. [2018-12-02 20:49:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:49:32,271 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:49:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:49:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:49:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 483 states and 1233 transitions. [2018-12-02 20:49:54,642 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 1233 transitions. [2018-12-02 20:49:54,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:49:54,642 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:49:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:50:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:50:34,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 20:50:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 493 states and 1283 transitions. [2018-12-02 20:50:34,404 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 1283 transitions. [2018-12-02 20:50:34,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 20:50:34,404 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 20:50:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:50:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:50:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:50:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:50:34,533 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 84 iterations. [2018-12-02 20:50:34,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 08:50:34 ImpRootNode [2018-12-02 20:50:34,564 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 20:50:34,565 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:50:34,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:50:34,565 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:50:34,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:39:39" (3/4) ... [2018-12-02 20:50:34,567 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 20:50:34,606 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1d3d245a-fed5-4e62-a61e-f5a87cc6d163/bin-2019/ukojak/witness.graphml [2018-12-02 20:50:34,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:50:34,606 INFO L168 Benchmark]: Toolchain (without parser) took 655987.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 619.5 MB in the end (delta: 331.1 MB). Peak memory consumption was 467.9 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:34,607 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:50:34,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:34,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:34,608 INFO L168 Benchmark]: Boogie Preprocessor took 18.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:34,608 INFO L168 Benchmark]: RCFGBuilder took 348.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:34,608 INFO L168 Benchmark]: CodeCheck took 655286.86 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 26.7 MB). Free memory was 1.0 GB in the beginning and 625.9 MB in the end (delta: 420.4 MB). Peak memory consumption was 447.2 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:34,609 INFO L168 Benchmark]: Witness Printer took 41.47 ms. Allocated memory is still 1.2 GB. Free memory was 625.9 MB in the beginning and 619.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-12-02 20:50:34,610 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, 56 locations, 6 error locations. UNSAFE Result, 655.2s OverallTime, 84 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8192 SDtfs, 58820526 SDslu, -363018176 SDs, 0 SdLazy, 170859550 SolverSat, 663244176 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 291.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22740 GetRequests, 19971 SyntacticMatches, 1087 SemanticMatches, 1682 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755237 ImplicationChecksByTransitivity, 641.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 126.2s InterpolantComputationTime, 1948 NumberOfCodeBlocks, 1948 NumberOfCodeBlocksAsserted, 84 NumberOfCheckSat, 1837 ConstructedInterpolants, 0 QuantifiedInterpolants, 1771871 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 83 InterpolantComputations, 14 PerfectInterpolantSequences, 88/1080 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 - CounterExampleResult [Line: 1051]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] SLL* head = malloc(sizeof(SLL)); [L986] head->next = ((void*)0) [L987] head->data = 0 [L989] SLL* x = head; [L990] int marked = 0; [L993] COND TRUE __VERIFIER_nondet_int() || !marked [L996] x->next = malloc(sizeof(SLL)) [L997] EXPR x->next [L997] x = x->next [L998] x->next = ((void*)0) [L1000] COND TRUE __VERIFIER_nondet_int() [L1002] marked = 1 [L1005] COND TRUE \read(marked) [L1006] x->data = 1 [L993] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1011] x = head [L1013] COND FALSE !(!(((void*)0) != x)) [L1014] marked = 0 [L1016] EXPR x->next [L1016] x->next != ((void*)0) && x->next->data == 0 [L1016] EXPR x->next [L1016] EXPR x->next->data [L1016] x->next != ((void*)0) && x->next->data == 0 [L1016] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1021] EXPR x->next [L1021] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1021] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1021] COND FALSE !(x->next != ((void*)0) && __VERIFIER_nondet_int()) [L1027] SLL* tmp = malloc(sizeof(SLL)); [L1028] tmp->data = 1 [L1029] tmp->next = ((void*)0) [L1030] EXPR x->next [L1030] COND FALSE !(x->next == ((void*)0)) [L1034] EXPR x->next [L1034] tmp->next = x->next [L1035] x->next = tmp [L1038] marked = 0 [L1039] x = head [L1041] x != ((void*)0) && x->data != 1 [L1041] EXPR x->data [L1041] x != ((void*)0) && x->data != 1 [L1041] COND TRUE x != ((void*)0) && x->data != 1 [L1043] EXPR x->data [L1043] marked = x->data [L1044] EXPR x->data [L1044] COND FALSE !(!(x->data == 0)) [L1045] COND FALSE !(!(marked == 0)) [L1046] EXPR x->next [L1046] x = x->next [L1041] x != ((void*)0) && x->data != 1 [L1041] EXPR x->data [L1041] x != ((void*)0) && x->data != 1 [L1041] COND FALSE !(x != ((void*)0) && x->data != 1) [L1048] COND TRUE x != ((void*)0) [L1050] EXPR x->data [L1050] marked = x->data [L1051] EXPR x->data [L1051] COND TRUE !(x->data != 1) [L1051] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 348.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * CodeCheck took 655286.86 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 26.7 MB). Free memory was 1.0 GB in the beginning and 625.9 MB in the end (delta: 420.4 MB). Peak memory consumption was 447.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.47 ms. Allocated memory is still 1.2 GB. Free memory was 625.9 MB in the beginning and 619.5 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...