./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31de2fb67e84e52bb7705ac8720e6b139fef2d91 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:03:23,324 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:03:23,325 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:03:23,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:03:23,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:03:23,333 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:03:23,334 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:03:23,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:03:23,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:03:23,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:03:23,337 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:03:23,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:03:23,338 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:03:23,339 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:03:23,339 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:03:23,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:03:23,340 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:03:23,342 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:03:23,343 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:03:23,344 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:03:23,345 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:03:23,345 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:03:23,347 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:03:23,347 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:03:23,347 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:03:23,348 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:03:23,349 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:03:23,349 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:03:23,350 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:03:23,351 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:03:23,351 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:03:23,351 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:03:23,351 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:03:23,352 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:03:23,352 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:03:23,352 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:03:23,353 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 10:03:23,363 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:03:23,363 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:03:23,364 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:03:23,364 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:03:23,364 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:03:23,365 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:03:23,366 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 10:03:23,366 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 10:03:23,366 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:03:23,366 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:03:23,366 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 10:03:23,366 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:03:23,366 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:03:23,366 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 10:03:23,367 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:03:23,367 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31de2fb67e84e52bb7705ac8720e6b139fef2d91 [2018-12-09 10:03:23,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:03:23,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:03:23,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:03:23,403 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:03:23,403 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:03:23,404 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i [2018-12-09 10:03:23,442 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/data/a96022eb1/52b8b934b83c4580881456cd324c6efc/FLAGd8f161047 [2018-12-09 10:03:23,822 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:03:23,822 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/sv-benchmarks/c/forester-heap/sll-01_false-unreach-call_false-valid-deref.i [2018-12-09 10:03:23,828 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/data/a96022eb1/52b8b934b83c4580881456cd324c6efc/FLAGd8f161047 [2018-12-09 10:03:24,188 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/data/a96022eb1/52b8b934b83c4580881456cd324c6efc [2018-12-09 10:03:24,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:03:24,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:03:24,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:03:24,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:03:24,201 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:03:24,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211e4e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24, skipping insertion in model container [2018-12-09 10:03:24,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:03:24,229 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:03:24,378 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:03:24,414 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:03:24,441 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:03:24,460 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:03:24,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24 WrapperNode [2018-12-09 10:03:24,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:03:24,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:03:24,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:03:24,461 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:03:24,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:03:24,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:03:24,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:03:24,489 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:03:24,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:03:24,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:03:24,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:03:24,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:03:24,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:03:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 10:03:24,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:03:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 10:03:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-09 10:03:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:03:24,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:03:24,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:03:24,927 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:03:24,927 INFO L280 CfgBuilder]: Removed 34 assue(true) statements. [2018-12-09 10:03:24,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:03:24 BoogieIcfgContainer [2018-12-09 10:03:24,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:03:24,928 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 10:03:24,928 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 10:03:24,934 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 10:03:24,935 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:03:24" (1/1) ... [2018-12-09 10:03:24,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:03:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:24,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 139 states and 175 transitions. [2018-12-09 10:03:24,964 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 175 transitions. [2018-12-09 10:03:24,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 10:03:24,965 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 138 states and 174 transitions. [2018-12-09 10:03:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2018-12-09 10:03:25,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 10:03:25,066 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 137 states and 173 transitions. [2018-12-09 10:03:25,130 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2018-12-09 10:03:25,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 10:03:25,132 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 137 states and 171 transitions. [2018-12-09 10:03:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 171 transitions. [2018-12-09 10:03:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 10:03:25,143 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 136 states and 170 transitions. [2018-12-09 10:03:25,171 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 170 transitions. [2018-12-09 10:03:25,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 10:03:25,171 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 135 states and 169 transitions. [2018-12-09 10:03:25,203 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2018-12-09 10:03:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 10:03:25,203 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 134 states and 168 transitions. [2018-12-09 10:03:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 168 transitions. [2018-12-09 10:03:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 10:03:25,238 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 133 states and 167 transitions. [2018-12-09 10:03:25,336 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 167 transitions. [2018-12-09 10:03:25,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 10:03:25,336 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 134 states and 167 transitions. [2018-12-09 10:03:25,356 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2018-12-09 10:03:25,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 10:03:25,356 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 135 states and 168 transitions. [2018-12-09 10:03:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 168 transitions. [2018-12-09 10:03:25,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 10:03:25,460 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 134 states and 167 transitions. [2018-12-09 10:03:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2018-12-09 10:03:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 10:03:25,481 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 133 states and 166 transitions. [2018-12-09 10:03:25,558 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 166 transitions. [2018-12-09 10:03:25,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 10:03:25,558 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 132 states and 165 transitions. [2018-12-09 10:03:25,799 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 165 transitions. [2018-12-09 10:03:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 10:03:25,799 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 131 states and 164 transitions. [2018-12-09 10:03:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 164 transitions. [2018-12-09 10:03:26,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 10:03:26,319 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 130 states and 163 transitions. [2018-12-09 10:03:26,337 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 163 transitions. [2018-12-09 10:03:26,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 10:03:26,337 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:26,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 129 states and 162 transitions. [2018-12-09 10:03:26,359 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 162 transitions. [2018-12-09 10:03:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 10:03:26,360 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:26,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 128 states and 161 transitions. [2018-12-09 10:03:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 161 transitions. [2018-12-09 10:03:26,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 10:03:26,465 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 127 states and 160 transitions. [2018-12-09 10:03:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 160 transitions. [2018-12-09 10:03:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 10:03:26,633 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 126 states and 159 transitions. [2018-12-09 10:03:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 159 transitions. [2018-12-09 10:03:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 10:03:27,938 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 125 states and 158 transitions. [2018-12-09 10:03:28,849 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 158 transitions. [2018-12-09 10:03:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 10:03:28,849 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:28,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 123 states and 155 transitions. [2018-12-09 10:03:28,999 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 155 transitions. [2018-12-09 10:03:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 10:03:28,999 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:29,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 121 states and 153 transitions. [2018-12-09 10:03:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2018-12-09 10:03:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 10:03:29,213 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 123 states and 153 transitions. [2018-12-09 10:03:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 153 transitions. [2018-12-09 10:03:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 10:03:29,803 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:29,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 126 states and 159 transitions. [2018-12-09 10:03:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 159 transitions. [2018-12-09 10:03:29,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 10:03:29,998 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:32,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 135 states and 174 transitions. [2018-12-09 10:03:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2018-12-09 10:03:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 10:03:32,250 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:32,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 134 states and 173 transitions. [2018-12-09 10:03:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 173 transitions. [2018-12-09 10:03:32,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 10:03:32,315 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:32,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 133 states and 172 transitions. [2018-12-09 10:03:32,871 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 172 transitions. [2018-12-09 10:03:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 10:03:32,872 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 135 states and 175 transitions. [2018-12-09 10:03:34,468 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 175 transitions. [2018-12-09 10:03:34,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 10:03:34,468 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 137 states and 178 transitions. [2018-12-09 10:03:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 178 transitions. [2018-12-09 10:03:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 10:03:36,610 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:36,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:36,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:36,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 137 states and 176 transitions. [2018-12-09 10:03:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 176 transitions. [2018-12-09 10:03:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 10:03:36,618 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 140 states and 179 transitions. [2018-12-09 10:03:40,818 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 179 transitions. [2018-12-09 10:03:40,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 10:03:40,819 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:41,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 147 states and 192 transitions. [2018-12-09 10:03:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 192 transitions. [2018-12-09 10:03:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 10:03:41,084 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:41,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:41,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 154 states and 205 transitions. [2018-12-09 10:03:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 205 transitions. [2018-12-09 10:03:41,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 10:03:41,494 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 151 states and 201 transitions. [2018-12-09 10:03:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 201 transitions. [2018-12-09 10:03:44,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 10:03:44,618 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 162 states and 217 transitions. [2018-12-09 10:03:46,529 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2018-12-09 10:03:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 10:03:46,529 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:46,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 162 states and 215 transitions. [2018-12-09 10:03:46,536 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2018-12-09 10:03:46,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 10:03:46,537 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:46,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:46,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 162 states and 211 transitions. [2018-12-09 10:03:46,543 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 211 transitions. [2018-12-09 10:03:46,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 10:03:46,544 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 162 states and 207 transitions. [2018-12-09 10:03:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 207 transitions. [2018-12-09 10:03:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 10:03:46,551 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:47,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 169 states and 220 transitions. [2018-12-09 10:03:47,854 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 220 transitions. [2018-12-09 10:03:47,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 10:03:47,854 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:47,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:47,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 173 states and 227 transitions. [2018-12-09 10:03:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 227 transitions. [2018-12-09 10:03:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 10:03:47,919 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:48,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 177 states and 238 transitions. [2018-12-09 10:03:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 238 transitions. [2018-12-09 10:03:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 10:03:48,189 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:54,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 188 states and 258 transitions. [2018-12-09 10:03:54,653 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 258 transitions. [2018-12-09 10:03:54,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 10:03:54,654 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:59,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 190 states and 263 transitions. [2018-12-09 10:03:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 263 transitions. [2018-12-09 10:03:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 10:03:59,039 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:59,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:59,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:59,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 189 states and 262 transitions. [2018-12-09 10:03:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 262 transitions. [2018-12-09 10:03:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 10:03:59,059 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:59,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 196 states and 270 transitions. [2018-12-09 10:03:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 270 transitions. [2018-12-09 10:03:59,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 10:03:59,212 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:59,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 195 states and 269 transitions. [2018-12-09 10:03:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 269 transitions. [2018-12-09 10:03:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 10:03:59,354 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:03:59,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:03:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:03:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 196 states and 270 transitions. [2018-12-09 10:03:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 270 transitions. [2018-12-09 10:03:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 10:03:59,717 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:03:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:09,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:09,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 214 states and 301 transitions. [2018-12-09 10:04:09,299 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 301 transitions. [2018-12-09 10:04:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 10:04:09,299 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:09,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:09,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:09,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 215 states and 303 transitions. [2018-12-09 10:04:09,882 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 303 transitions. [2018-12-09 10:04:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 10:04:09,882 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:09,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:09,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 216 states and 304 transitions. [2018-12-09 10:04:09,899 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 304 transitions. [2018-12-09 10:04:09,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 10:04:09,900 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:10,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 217 states and 305 transitions. [2018-12-09 10:04:10,993 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 305 transitions. [2018-12-09 10:04:10,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 10:04:10,995 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:11,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 216 states and 304 transitions. [2018-12-09 10:04:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 304 transitions. [2018-12-09 10:04:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 10:04:11,033 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 215 states and 303 transitions. [2018-12-09 10:04:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 303 transitions. [2018-12-09 10:04:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:11,260 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:17,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 223 states and 324 transitions. [2018-12-09 10:04:17,340 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 324 transitions. [2018-12-09 10:04:17,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:17,341 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:20,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 232 states and 348 transitions. [2018-12-09 10:04:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 348 transitions. [2018-12-09 10:04:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:20,235 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:20,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:20,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 233 states and 350 transitions. [2018-12-09 10:04:20,737 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 350 transitions. [2018-12-09 10:04:20,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:20,738 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:28,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:28,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 242 states and 374 transitions. [2018-12-09 10:04:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 374 transitions. [2018-12-09 10:04:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:28,197 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:28,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:28,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 243 states and 376 transitions. [2018-12-09 10:04:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 376 transitions. [2018-12-09 10:04:28,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:28,817 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:29,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 244 states and 378 transitions. [2018-12-09 10:04:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 378 transitions. [2018-12-09 10:04:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:29,411 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 245 states and 379 transitions. [2018-12-09 10:04:29,878 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 379 transitions. [2018-12-09 10:04:29,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:29,878 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:30,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 246 states and 380 transitions. [2018-12-09 10:04:30,459 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 380 transitions. [2018-12-09 10:04:30,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:30,460 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 247 states and 381 transitions. [2018-12-09 10:04:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 381 transitions. [2018-12-09 10:04:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:31,100 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:31,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:31,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 248 states and 382 transitions. [2018-12-09 10:04:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 382 transitions. [2018-12-09 10:04:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:31,592 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:04:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 249 states and 383 transitions. [2018-12-09 10:04:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 383 transitions. [2018-12-09 10:04:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:32,246 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 251 states and 386 transitions. [2018-12-09 10:04:35,903 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 386 transitions. [2018-12-09 10:04:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:35,903 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 253 states and 389 transitions. [2018-12-09 10:04:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 389 transitions. [2018-12-09 10:04:39,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:39,478 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:04:52,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:04:52,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 264 states and 411 transitions. [2018-12-09 10:04:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 411 transitions. [2018-12-09 10:04:52,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:04:52,450 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:04:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:04:56,368 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2018-12-09 10:04:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 275 states and 433 transitions. [2018-12-09 10:05:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 433 transitions. [2018-12-09 10:05:15,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:05:15,071 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:15,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:19,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 285 states and 454 transitions. [2018-12-09 10:05:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 454 transitions. [2018-12-09 10:05:19,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 10:05:19,592 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:23,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 295 states and 475 transitions. [2018-12-09 10:05:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 475 transitions. [2018-12-09 10:05:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 10:05:23,767 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:23,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 294 states and 474 transitions. [2018-12-09 10:05:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 474 transitions. [2018-12-09 10:05:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 10:05:23,780 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 293 states and 473 transitions. [2018-12-09 10:05:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 473 transitions. [2018-12-09 10:05:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 10:05:23,796 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 294 states and 475 transitions. [2018-12-09 10:05:24,522 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 475 transitions. [2018-12-09 10:05:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 10:05:24,522 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:25,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 295 states and 476 transitions. [2018-12-09 10:05:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 476 transitions. [2018-12-09 10:05:25,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 10:05:25,413 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 280 states and 455 transitions. [2018-12-09 10:05:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 455 transitions. [2018-12-09 10:05:32,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:05:32,414 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:05:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:32,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 281 states and 457 transitions. [2018-12-09 10:05:32,429 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 457 transitions. [2018-12-09 10:05:32,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:05:32,430 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:05:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:36,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 284 states and 463 transitions. [2018-12-09 10:05:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 463 transitions. [2018-12-09 10:05:36,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:05:36,617 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:43,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 288 states and 470 transitions. [2018-12-09 10:05:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 470 transitions. [2018-12-09 10:05:43,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:05:43,045 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:05:48,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:05:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 290 states and 476 transitions. [2018-12-09 10:05:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 476 transitions. [2018-12-09 10:05:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:05:48,276 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:05:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:05:51,313 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2018-12-09 10:05:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:06:07,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:07,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 287 states and 472 transitions. [2018-12-09 10:06:07,753 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 472 transitions. [2018-12-09 10:06:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:06:07,753 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:06:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 286 states and 469 transitions. [2018-12-09 10:06:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 469 transitions. [2018-12-09 10:06:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:06:07,959 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:06:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 293 states and 482 transitions. [2018-12-09 10:06:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 482 transitions. [2018-12-09 10:06:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 10:06:30,287 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:06:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 295 states and 484 transitions. [2018-12-09 10:06:42,854 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 484 transitions. [2018-12-09 10:06:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:06:42,855 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:06:42,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 295 states and 480 transitions. [2018-12-09 10:06:42,874 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 480 transitions. [2018-12-09 10:06:42,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:06:42,875 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:06:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 299 states and 485 transitions. [2018-12-09 10:06:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 485 transitions. [2018-12-09 10:06:46,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:06:46,325 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:06:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 299 states and 484 transitions. [2018-12-09 10:06:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 484 transitions. [2018-12-09 10:06:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:06:47,238 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:47,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:06:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:48,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 299 states and 483 transitions. [2018-12-09 10:06:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 483 transitions. [2018-12-09 10:06:48,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:06:48,288 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:06:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:51,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 302 states and 489 transitions. [2018-12-09 10:06:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 489 transitions. [2018-12-09 10:06:51,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:06:51,355 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:06:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:06:56,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 304 states and 493 transitions. [2018-12-09 10:06:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 493 transitions. [2018-12-09 10:06:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:06:56,523 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:06:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:06:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:06,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:06,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 312 states and 517 transitions. [2018-12-09 10:07:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 517 transitions. [2018-12-09 10:07:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:07:06,428 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:07,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:07,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 313 states and 518 transitions. [2018-12-09 10:07:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 518 transitions. [2018-12-09 10:07:07,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:07:07,431 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:08,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 314 states and 519 transitions. [2018-12-09 10:07:08,452 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 519 transitions. [2018-12-09 10:07:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-12-09 10:07:08,452 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:09,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 315 states and 521 transitions. [2018-12-09 10:07:09,391 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 521 transitions. [2018-12-09 10:07:09,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:07:09,391 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:12,587 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-12-09 10:07:24,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:24,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 325 states and 545 transitions. [2018-12-09 10:07:24,570 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 545 transitions. [2018-12-09 10:07:24,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:07:24,570 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:24,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:25,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:25,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 324 states and 544 transitions. [2018-12-09 10:07:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 544 transitions. [2018-12-09 10:07:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:07:25,053 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 325 states and 546 transitions. [2018-12-09 10:07:27,841 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 546 transitions. [2018-12-09 10:07:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:07:27,841 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:27,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 326 states and 548 transitions. [2018-12-09 10:07:29,926 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 548 transitions. [2018-12-09 10:07:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:07:29,926 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 327 states and 549 transitions. [2018-12-09 10:07:34,267 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 549 transitions. [2018-12-09 10:07:34,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:07:34,267 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:07:34,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 326 states and 548 transitions. [2018-12-09 10:07:34,467 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 548 transitions. [2018-12-09 10:07:34,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 10:07:34,467 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:07:36,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:36,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 328 states and 550 transitions. [2018-12-09 10:07:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 550 transitions. [2018-12-09 10:07:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 10:07:36,348 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:07:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:40,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 330 states and 553 transitions. [2018-12-09 10:07:40,101 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 553 transitions. [2018-12-09 10:07:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 10:07:40,101 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:40,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:07:44,895 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2018-12-09 10:07:58,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:07:58,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 345 states and 588 transitions. [2018-12-09 10:07:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 588 transitions. [2018-12-09 10:07:58,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 10:07:58,485 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:07:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:07:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:08:00,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:08:00,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 346 states and 590 transitions. [2018-12-09 10:08:00,506 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 590 transitions. [2018-12-09 10:08:00,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 10:08:00,506 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:08:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:08:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:08:04,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:08:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 347 states and 591 transitions. [2018-12-09 10:08:04,745 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 591 transitions. [2018-12-09 10:08:04,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 10:08:04,746 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:08:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:08:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:08:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:08:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 348 states and 593 transitions. [2018-12-09 10:08:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 593 transitions. [2018-12-09 10:08:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:08:06,094 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:08:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:08:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:08:50,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:08:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 368 states and 648 transitions. [2018-12-09 10:08:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 648 transitions. [2018-12-09 10:08:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:08:50,116 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:08:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:08:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:08:53,600 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-09 10:08:57,301 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2018-12-09 10:08:59,540 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-09 10:09:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:09:24,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 381 states and 680 transitions. [2018-12-09 10:09:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 680 transitions. [2018-12-09 10:09:24,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:09:24,142 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:09:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:09:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:09:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:09:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 383 states and 687 transitions. [2018-12-09 10:09:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 687 transitions. [2018-12-09 10:09:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:09:28,411 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:09:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:09:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:09:48,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:09:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 390 states and 703 transitions. [2018-12-09 10:09:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 703 transitions. [2018-12-09 10:09:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:09:48,117 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:09:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:09:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:09:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:09:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 391 states and 705 transitions. [2018-12-09 10:09:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 705 transitions. [2018-12-09 10:09:51,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:09:51,315 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:09:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:09:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:09:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:09:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 392 states and 706 transitions. [2018-12-09 10:09:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 706 transitions. [2018-12-09 10:09:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:09:52,788 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:09:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:09:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:09:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:09:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 393 states and 709 transitions. [2018-12-09 10:09:54,496 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 709 transitions. [2018-12-09 10:09:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:09:54,496 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:09:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:09:54,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 10:09:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:09:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 394 states and 710 transitions. [2018-12-09 10:09:56,353 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 710 transitions. [2018-12-09 10:09:56,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:09:56,353 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:09:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:09:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:10:03,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:10:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 399 states and 732 transitions. [2018-12-09 10:10:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 732 transitions. [2018-12-09 10:10:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 10:10:03,652 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:10:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:10:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:10:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:10:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:10:03,720 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 114 iterations. [2018-12-09 10:10:03,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 10:10:03 ImpRootNode [2018-12-09 10:10:03,742 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 10:10:03,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:10:03,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:10:03,742 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:10:03,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:03:24" (3/4) ... [2018-12-09 10:10:03,744 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 10:10:03,776 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5033f9ec-be2c-4a14-9673-03ecb30e51f8/bin-2019/ukojak/witness.graphml [2018-12-09 10:10:03,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:10:03,776 INFO L168 Benchmark]: Toolchain (without parser) took 399582.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 949.5 MB in the beginning and 725.1 MB in the end (delta: 224.5 MB). Peak memory consumption was 361.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:10:03,777 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:10:03,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:10:03,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:10:03,777 INFO L168 Benchmark]: Boogie Preprocessor took 20.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:10:03,778 INFO L168 Benchmark]: RCFGBuilder took 418.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. [2018-12-09 10:10:03,778 INFO L168 Benchmark]: CodeCheck took 398813.94 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -2.1 MB). Free memory was 1.0 GB in the beginning and 725.1 MB in the end (delta: 318.0 MB). Peak memory consumption was 315.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:10:03,778 INFO L168 Benchmark]: Witness Printer took 33.56 ms. Allocated memory is still 1.2 GB. Free memory is still 725.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:10:03,780 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, 162 locations, 65 error locations. UNSAFE Result, 398.7s OverallTime, 114 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 147460 SDtfs, -264837468 SDslu, 1705340480 SDs, 0 SdLazy, 166548204 SolverSat, 1483840676 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21505 GetRequests, 19592 SyntacticMatches, 729 SemanticMatches, 1184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692970 ImplicationChecksByTransitivity, 393.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 48.4s InterpolantComputationTime, 2692 NumberOfCodeBlocks, 2692 NumberOfCodeBlocksAsserted, 114 NumberOfCheckSat, 2546 ConstructedInterpolants, 0 QuantifiedInterpolants, 495443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 113 InterpolantComputations, 100 PerfectInterpolantSequences, 47/64 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: 1029]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L991] SLL* list = malloc(sizeof(SLL)); [L992] list->next = ((void*)0) [L993] COND FALSE !(!(list != ((void*)0))) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L993] list->inner = malloc(sizeof(SLL)) [L993] EXPR list->inner [L993] list->inner->next = ((void*)0) [L993] EXPR list->inner [L993] list->inner->inner = ((void*)0) [L993] EXPR list->inner [L993] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L993] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L995] SLL* end = list; [L998] COND FALSE !(__VERIFIER_nondet_int()) [L1008] end = ((void*)0) [L1009] end = list [L1012] COND FALSE !(!(((void*)0) != end)) [L1014] COND TRUE ((void*)0) != end [L1016] int len = 0; [L1017] EXPR end->inner [L1017] SLL* inner = end->inner; [L1018] COND TRUE ((void*)0) != inner [L1020] COND TRUE len == 0 [L1021] len = 1 [L1024] COND FALSE !(!(((void*)0) != inner)) [L1025] EXPR inner->inner [L1025] COND FALSE !(!(((void*)0) == inner->inner)) [L1026] EXPR inner->next [L1026] COND FALSE !(!(((void*)0) == inner->next)) [L1027] EXPR inner->inner [L1027] inner = inner->inner [L1028] COND TRUE len == 1 [L1029] inner->inner * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 418.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.2 MB). Peak memory consumption was 74.2 MB. Max. memory is 11.5 GB. * CodeCheck took 398813.94 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -2.1 MB). Free memory was 1.0 GB in the beginning and 725.1 MB in the end (delta: 318.0 MB). Peak memory consumption was 315.9 MB. Max. memory is 11.5 GB. * Witness Printer took 33.56 ms. Allocated memory is still 1.2 GB. Free memory is still 725.1 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...