./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/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 44834c55142a76240cb3980fc2bb6f5aeaa27c83 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-08 11:49:04,834 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:49:04,835 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:49:04,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:49:04,841 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:49:04,841 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:49:04,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:49:04,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:49:04,843 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:49:04,844 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:49:04,844 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:49:04,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:49:04,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:49:04,845 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:49:04,846 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:49:04,846 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:49:04,847 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:49:04,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:49:04,848 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:49:04,849 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:49:04,850 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:49:04,850 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:49:04,852 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:49:04,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:49:04,852 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:49:04,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:49:04,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:49:04,853 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:49:04,854 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:49:04,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:49:04,854 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:49:04,855 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:49:04,855 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:49:04,855 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:49:04,855 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:49:04,856 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:49:04,856 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-08 11:49:04,863 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:49:04,863 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:49:04,864 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:49:04,864 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:49:04,864 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:49:04,864 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:49:04,864 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 11:49:04,864 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:49:04,864 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:49:04,865 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:49:04,865 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 11:49:04,865 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 11:49:04,865 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 11:49:04,865 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:49:04,865 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:49:04,865 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:49:04,865 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 11:49:04,866 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 11:49:04,866 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:49:04,866 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:49:04,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 11:49:04,866 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:49:04,866 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:49:04,866 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 11:49:04,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:49:04,867 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_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/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 -> 44834c55142a76240cb3980fc2bb6f5aeaa27c83 [2018-12-08 11:49:04,885 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:49:04,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:49:04,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:49:04,897 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:49:04,898 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:49:04,898 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c [2018-12-08 11:49:04,941 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/data/af49aee63/d08b9b39a3544e96acf6de2f7e06b5aa/FLAG18089a4c5 [2018-12-08 11:49:05,294 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:49:05,295 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/sv-benchmarks/c/memsafety-ext3/derefAfterFree2_false-valid-deref.c [2018-12-08 11:49:05,298 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/data/af49aee63/d08b9b39a3544e96acf6de2f7e06b5aa/FLAG18089a4c5 [2018-12-08 11:49:05,686 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/data/af49aee63/d08b9b39a3544e96acf6de2f7e06b5aa [2018-12-08 11:49:05,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:49:05,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:49:05,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:49:05,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:49:05,693 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:49:05,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64cb1edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05, skipping insertion in model container [2018-12-08 11:49:05,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:49:05,708 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:49:05,788 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:49:05,793 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:49:05,802 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:49:05,810 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:49:05,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05 WrapperNode [2018-12-08 11:49:05,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:49:05,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:49:05,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:49:05,811 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:49:05,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:49:05,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:49:05,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:49:05,830 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:49:05,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... [2018-12-08 11:49:05,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:49:05,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:49:05,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:49:05,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:49:05,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:49:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/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 [2018-12-08 11:49:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 11:49:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:49:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:49:05,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:49:05,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 11:49:06,008 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:49:06,008 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-08 11:49:06,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:49:06 BoogieIcfgContainer [2018-12-08 11:49:06,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:49:06,009 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 11:49:06,009 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 11:49:06,015 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 11:49:06,015 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:49:06" (1/1) ... [2018-12-08 11:49:06,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:49:06,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2018-12-08 11:49:06,041 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-12-08 11:49:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 11:49:06,042 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2018-12-08 11:49:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-08 11:49:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 11:49:06,134 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2018-12-08 11:49:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2018-12-08 11:49:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 11:49:06,211 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2018-12-08 11:49:06,420 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-12-08 11:49:06,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 11:49:06,422 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2018-12-08 11:49:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2018-12-08 11:49:06,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 11:49:06,465 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2018-12-08 11:49:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2018-12-08 11:49:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 11:49:06,489 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-12-08 11:49:06,572 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-12-08 11:49:06,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 11:49:06,573 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 28 states and 43 transitions. [2018-12-08 11:49:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2018-12-08 11:49:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 11:49:06,826 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:06,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 45 transitions. [2018-12-08 11:49:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2018-12-08 11:49:06,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 11:49:06,936 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:07,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:07,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2018-12-08 11:49:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2018-12-08 11:49:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 11:49:07,022 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:07,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:07,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2018-12-08 11:49:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2018-12-08 11:49:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 11:49:07,124 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:07,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 36 states and 60 transitions. [2018-12-08 11:49:07,669 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 60 transitions. [2018-12-08 11:49:07,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 11:49:07,669 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 11:49:07,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:07,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 37 states and 59 transitions. [2018-12-08 11:49:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2018-12-08 11:49:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 11:49:07,829 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 38 states and 59 transitions. [2018-12-08 11:49:07,965 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 59 transitions. [2018-12-08 11:49:07,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 11:49:07,966 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:07,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:08,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 40 states and 66 transitions. [2018-12-08 11:49:08,094 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2018-12-08 11:49:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 11:49:08,095 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:08,112 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:08,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 43 states and 71 transitions. [2018-12-08 11:49:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 71 transitions. [2018-12-08 11:49:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-08 11:49:08,339 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 11:49:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 44 states and 71 transitions. [2018-12-08 11:49:08,444 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2018-12-08 11:49:08,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 11:49:08,444 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:08,452 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 46 states and 77 transitions. [2018-12-08 11:49:08,560 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 77 transitions. [2018-12-08 11:49:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 11:49:08,560 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 47 states and 77 transitions. [2018-12-08 11:49:08,663 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 77 transitions. [2018-12-08 11:49:08,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:08,663 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 51 states and 88 transitions. [2018-12-08 11:49:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 88 transitions. [2018-12-08 11:49:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:09,294 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 11:49:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 51 states and 87 transitions. [2018-12-08 11:49:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 87 transitions. [2018-12-08 11:49:09,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:09,414 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:09,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 54 states and 91 transitions. [2018-12-08 11:49:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 91 transitions. [2018-12-08 11:49:09,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:09,676 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 56 states and 99 transitions. [2018-12-08 11:49:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 99 transitions. [2018-12-08 11:49:09,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:09,835 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 57 states and 99 transitions. [2018-12-08 11:49:10,017 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 99 transitions. [2018-12-08 11:49:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:10,017 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:10,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:10,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 60 states and 104 transitions. [2018-12-08 11:49:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 104 transitions. [2018-12-08 11:49:10,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:10,298 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:10,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 11:49:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:10,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 61 states and 104 transitions. [2018-12-08 11:49:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 104 transitions. [2018-12-08 11:49:10,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 11:49:10,426 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 11:49:10,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:10,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 62 states and 104 transitions. [2018-12-08 11:49:10,548 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 104 transitions. [2018-12-08 11:49:10,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:49:10,548 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:10,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 64 states and 111 transitions. [2018-12-08 11:49:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 111 transitions. [2018-12-08 11:49:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:49:10,709 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:10,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 65 states and 111 transitions. [2018-12-08 11:49:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 111 transitions. [2018-12-08 11:49:10,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 11:49:10,837 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:10,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:10,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 66 states and 111 transitions. [2018-12-08 11:49:10,960 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 111 transitions. [2018-12-08 11:49:10,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:10,960 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 70 states and 125 transitions. [2018-12-08 11:49:12,827 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 125 transitions. [2018-12-08 11:49:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:12,827 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 11:49:12,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 71 states and 125 transitions. [2018-12-08 11:49:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 125 transitions. [2018-12-08 11:49:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:12,974 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 11:49:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 72 states and 124 transitions. [2018-12-08 11:49:13,226 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2018-12-08 11:49:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:13,226 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 74 states and 133 transitions. [2018-12-08 11:49:13,440 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 133 transitions. [2018-12-08 11:49:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:13,440 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 11:49:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 75 states and 133 transitions. [2018-12-08 11:49:13,558 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 133 transitions. [2018-12-08 11:49:13,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:13,558 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:13,567 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 78 states and 136 transitions. [2018-12-08 11:49:13,924 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 136 transitions. [2018-12-08 11:49:13,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:13,924 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:13,933 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:14,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 81 states and 138 transitions. [2018-12-08 11:49:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 138 transitions. [2018-12-08 11:49:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:14,246 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:14,256 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:14,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 84 states and 141 transitions. [2018-12-08 11:49:14,548 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 141 transitions. [2018-12-08 11:49:14,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 11:49:14,548 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 85 states and 141 transitions. [2018-12-08 11:49:14,798 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 141 transitions. [2018-12-08 11:49:14,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:49:14,798 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:14,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 87 states and 149 transitions. [2018-12-08 11:49:14,961 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 149 transitions. [2018-12-08 11:49:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:49:14,961 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:15,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 88 states and 149 transitions. [2018-12-08 11:49:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 149 transitions. [2018-12-08 11:49:15,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:49:15,171 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:15,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 89 states and 149 transitions. [2018-12-08 11:49:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 149 transitions. [2018-12-08 11:49:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:49:15,514 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:16,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 90 states and 149 transitions. [2018-12-08 11:49:16,350 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 149 transitions. [2018-12-08 11:49:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:16,350 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-08 11:49:16,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 90 states and 148 transitions. [2018-12-08 11:49:16,396 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 148 transitions. [2018-12-08 11:49:16,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:16,396 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 92 states and 157 transitions. [2018-12-08 11:49:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 157 transitions. [2018-12-08 11:49:16,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:16,654 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:16,885 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 96 states and 175 transitions. [2018-12-08 11:49:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 175 transitions. [2018-12-08 11:49:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:17,886 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-08 11:49:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 97 states and 175 transitions. [2018-12-08 11:49:18,076 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 175 transitions. [2018-12-08 11:49:18,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:18,077 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:18,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:18,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 100 states and 177 transitions. [2018-12-08 11:49:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 177 transitions. [2018-12-08 11:49:18,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:18,689 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 103 states and 180 transitions. [2018-12-08 11:49:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 180 transitions. [2018-12-08 11:49:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:19,065 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:19,074 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-08 11:49:19,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:19,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 104 states and 180 transitions. [2018-12-08 11:49:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 180 transitions. [2018-12-08 11:49:19,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:19,265 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 107 states and 182 transitions. [2018-12-08 11:49:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 182 transitions. [2018-12-08 11:49:19,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:19,678 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:19,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 108 states and 182 transitions. [2018-12-08 11:49:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 182 transitions. [2018-12-08 11:49:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:49:19,934 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:19,945 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:20,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:20,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 111 states and 184 transitions. [2018-12-08 11:49:20,333 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 184 transitions. [2018-12-08 11:49:20,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 11:49:20,333 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:20,447 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-12-08 11:49:24,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 127 states and 204 transitions. [2018-12-08 11:49:24,107 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 204 transitions. [2018-12-08 11:49:24,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 11:49:24,108 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:24,117 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-12-08 11:49:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 133 states and 208 transitions. [2018-12-08 11:49:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 208 transitions. [2018-12-08 11:49:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 11:49:24,634 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-12-08 11:49:25,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:25,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 134 states and 208 transitions. [2018-12-08 11:49:25,065 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 208 transitions. [2018-12-08 11:49:25,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 11:49:25,065 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-12-08 11:49:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 133 states and 206 transitions. [2018-12-08 11:49:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 206 transitions. [2018-12-08 11:49:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 11:49:25,505 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:49:25,579 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:49:26,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:49:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 135 states and 216 transitions. [2018-12-08 11:49:26,193 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 216 transitions. [2018-12-08 11:49:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 11:49:26,193 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:49:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:49:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:49:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:49:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:49:26,243 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 58 iterations. [2018-12-08 11:49:26,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 11:49:26 ImpRootNode [2018-12-08 11:49:26,270 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 11:49:26,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:49:26,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:49:26,271 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:49:26,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:49:06" (3/4) ... [2018-12-08 11:49:26,273 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 11:49:26,310 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f03cb3c5-76d6-4af0-b749-f2dc97c06c5e/bin-2019/ukojak/witness.graphml [2018-12-08 11:49:26,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:49:26,310 INFO L168 Benchmark]: Toolchain (without parser) took 20621.73 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 953.3 MB in the beginning and 1.2 GB in the end (delta: -238.2 MB). Peak memory consumption was 85.3 MB. Max. memory is 11.5 GB. [2018-12-08 11:49:26,311 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-08 11:49:26,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.92 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-12-08 11:49:26,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.90 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:49:26,312 INFO L168 Benchmark]: Boogie Preprocessor took 40.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-12-08 11:49:26,312 INFO L168 Benchmark]: RCFGBuilder took 137.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-12-08 11:49:26,313 INFO L168 Benchmark]: CodeCheck took 20261.79 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 226.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -113.1 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. [2018-12-08 11:49:26,313 INFO L168 Benchmark]: Witness Printer took 39.36 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:49:26,315 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, 17 locations, 5 error locations. UNSAFE Result, 20.2s OverallTime, 58 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, -2115777812 SDslu, 0 SDs, 0 SdLazy, 808870048 SolverSat, -989244688 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8743 GetRequests, 7799 SyntacticMatches, 574 SemanticMatches, 370 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75198 ImplicationChecksByTransitivity, 18.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 963 NumberOfCodeBlocks, 963 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 877 ConstructedInterpolants, 0 QuantifiedInterpolants, 129557 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 21 PerfectInterpolantSequences, 540/1491 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: 9]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L6] int* p = malloc(10 * sizeof(int)); [L8] int i = 0; [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND FALSE !(i == 5) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 [L10] COND TRUE i == 5 [L11] free(p) [L11] free(p) [L8] i++ [L8] COND TRUE i < 10 [L9] p[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 120.92 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.90 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 137.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 20261.79 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 226.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -113.1 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.36 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...