./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8e886c6e3abc79c194ec44ea4cf6d83eeae3b7c8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:37:59,845 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:37:59,846 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:37:59,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:37:59,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:37:59,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:37:59,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:37:59,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:37:59,859 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:37:59,859 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:37:59,860 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:37:59,860 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:37:59,861 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:37:59,861 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:37:59,862 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:37:59,863 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:37:59,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:37:59,865 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:37:59,866 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:37:59,867 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:37:59,868 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:37:59,869 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:37:59,870 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:37:59,870 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:37:59,871 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:37:59,871 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:37:59,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:37:59,872 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:37:59,873 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:37:59,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:37:59,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:37:59,874 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:37:59,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:37:59,875 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:37:59,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:37:59,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:37:59,876 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-23 14:37:59,886 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:37:59,886 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:37:59,887 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:37:59,887 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 14:37:59,888 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:37:59,888 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:37:59,888 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:37:59,888 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:37:59,888 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:37:59,888 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:37:59,889 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:37:59,889 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:37:59,889 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:37:59,889 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 14:37:59,889 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:37:59,889 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:37:59,890 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:37:59,890 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 14:37:59,890 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 14:37:59,890 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:37:59,890 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:37:59,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 14:37:59,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:37:59,891 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:37:59,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:37:59,891 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 14:37:59,891 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:37:59,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:37:59,891 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e886c6e3abc79c194ec44ea4cf6d83eeae3b7c8 [2018-11-23 14:37:59,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:37:59,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:37:59,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:37:59,925 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:37:59,925 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:37:59,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/../../sv-benchmarks/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i [2018-11-23 14:37:59,962 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/data/45b265c8c/3d04b0672a8d49f495797b52779c9806/FLAG74809a3da [2018-11-23 14:38:00,382 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:38:00,383 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/sv-benchmarks/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i [2018-11-23 14:38:00,398 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/data/45b265c8c/3d04b0672a8d49f495797b52779c9806/FLAG74809a3da [2018-11-23 14:38:00,725 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/data/45b265c8c/3d04b0672a8d49f495797b52779c9806 [2018-11-23 14:38:00,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:38:00,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:38:00,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:38:00,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:38:00,731 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:38:00,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:00" (1/1) ... [2018-11-23 14:38:00,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb4da4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:00, skipping insertion in model container [2018-11-23 14:38:00,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:00" (1/1) ... [2018-11-23 14:38:00,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:38:00,785 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:38:01,399 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:38:01,419 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:38:01,539 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:38:01,729 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:38:01,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01 WrapperNode [2018-11-23 14:38:01,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:38:01,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:38:01,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:38:01,730 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:38:01,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:38:01,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:38:01,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:38:01,803 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:38:01,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... [2018-11-23 14:38:01,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:38:01,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:38:01,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:38:01,852 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:38:01,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/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 [2018-11-23 14:38:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:38:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure gethostid [2018-11-23 14:38:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:38:01,909 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2018-11-23 14:38:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 14:38:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:38:01,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:38:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 14:38:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:38:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 14:38:02,540 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:38:02,541 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-11-23 14:38:02,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:02 BoogieIcfgContainer [2018-11-23 14:38:02,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:38:02,541 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 14:38:02,542 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 14:38:02,549 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 14:38:02,549 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:02" (1/1) ... [2018-11-23 14:38:02,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:38:02,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:02,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 38 states and 41 transitions. [2018-11-23 14:38:02,583 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-11-23 14:38:02,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-23 14:38:02,585 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:38:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 39 states and 43 transitions. [2018-11-23 14:38:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-11-23 14:38:02,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-23 14:38:02,908 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:02,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:38:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 38 states and 42 transitions. [2018-11-23 14:38:03,008 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-11-23 14:38:03,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 14:38:03,009 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:38:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2018-11-23 14:38:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-11-23 14:38:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-23 14:38:03,147 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 39 states and 43 transitions. [2018-11-23 14:38:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-11-23 14:38:03,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 14:38:03,287 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:03,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 38 states and 42 transitions. [2018-11-23 14:38:03,405 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-11-23 14:38:03,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 14:38:03,405 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:38:03,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 37 states and 41 transitions. [2018-11-23 14:38:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-11-23 14:38:03,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 14:38:03,639 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 36 states and 40 transitions. [2018-11-23 14:38:03,702 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-11-23 14:38:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:38:03,702 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:03,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 35 states and 39 transitions. [2018-11-23 14:38:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-11-23 14:38:03,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:38:03,767 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 34 states and 38 transitions. [2018-11-23 14:38:03,905 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-11-23 14:38:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:38:03,905 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:04,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 33 states and 37 transitions. [2018-11-23 14:38:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-23 14:38:04,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 14:38:04,058 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 32 states and 36 transitions. [2018-11-23 14:38:04,363 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-23 14:38:04,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:38:04,363 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2018-11-23 14:38:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-11-23 14:38:04,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 14:38:04,597 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:04,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2018-11-23 14:38:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-11-23 14:38:04,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 14:38:04,728 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:04,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:04,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2018-11-23 14:38:04,825 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2018-11-23 14:38:04,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 14:38:04,825 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:04,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:05,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:05,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2018-11-23 14:38:05,224 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-11-23 14:38:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:38:05,224 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:05,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2018-11-23 14:38:05,409 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2018-11-23 14:38:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:38:05,410 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:05,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2018-11-23 14:38:05,919 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2018-11-23 14:38:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 14:38:05,921 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:06,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:38:06,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:06,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 44 states and 62 transitions. [2018-11-23 14:38:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2018-11-23 14:38:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 14:38:06,418 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:38:06,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 46 states and 63 transitions. [2018-11-23 14:38:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2018-11-23 14:38:06,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 14:38:06,591 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:38:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 53 states and 77 transitions. [2018-11-23 14:38:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2018-11-23 14:38:07,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 14:38:07,374 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 55 states and 83 transitions. [2018-11-23 14:38:07,990 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2018-11-23 14:38:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 14:38:07,991 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 14:38:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 57 states and 87 transitions. [2018-11-23 14:38:08,625 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 87 transitions. [2018-11-23 14:38:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 14:38:08,626 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 14:38:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 59 states and 88 transitions. [2018-11-23 14:38:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2018-11-23 14:38:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 14:38:09,152 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:09,187 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 14:38:09,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 61 states and 90 transitions. [2018-11-23 14:38:09,633 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 90 transitions. [2018-11-23 14:38:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 14:38:09,633 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 14:38:10,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 67 states and 99 transitions. [2018-11-23 14:38:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 99 transitions. [2018-11-23 14:38:10,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 14:38:10,289 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 14:38:10,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 69 states and 100 transitions. [2018-11-23 14:38:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 100 transitions. [2018-11-23 14:38:10,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 14:38:10,909 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 14:38:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 71 states and 101 transitions. [2018-11-23 14:38:11,255 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2018-11-23 14:38:11,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:38:11,255 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:11,374 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 14:38:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 77 states and 114 transitions. [2018-11-23 14:38:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 114 transitions. [2018-11-23 14:38:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:38:12,630 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 14:38:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 77 states and 113 transitions. [2018-11-23 14:38:12,964 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2018-11-23 14:38:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 14:38:12,965 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-23 14:38:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 83 states and 123 transitions. [2018-11-23 14:38:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 123 transitions. [2018-11-23 14:38:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 14:38:14,028 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:14,057 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-23 14:38:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 85 states and 124 transitions. [2018-11-23 14:38:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2018-11-23 14:38:14,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 14:38:14,533 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 14:38:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:38:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-23 14:38:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 14:38:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 40 states and 51 transitions. [2018-11-23 14:38:14,924 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2018-11-23 14:38:14,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:38:14,925 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 33 iterations. [2018-11-23 14:38:14,932 INFO L775 CodeCheckObserver]: All specifications hold 16 specifications checked. All of them hold [2018-11-23 14:38:15,357 INFO L579 CodeCheckObserver]: Invariant with dag size 9 [2018-11-23 14:38:15,366 INFO L579 CodeCheckObserver]: Invariant with dag size 5 [2018-11-23 14:38:15,366 INFO L579 CodeCheckObserver]: Invariant with dag size 9 [2018-11-23 14:38:15,367 INFO L579 CodeCheckObserver]: Invariant with dag size 14 [2018-11-23 14:38:15,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 02:38:15 ImpRootNode [2018-11-23 14:38:15,368 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 14:38:15,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:38:15,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:38:15,368 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:38:15,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:38:02" (3/4) ... [2018-11-23 14:38:15,372 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:38:15,387 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-23 14:38:15,388 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 14:38:15,389 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 14:38:15,389 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:38:15,470 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e89db157-725e-4ecd-bae7-cacb223b4ea9/bin-2019/ukojak/witness.graphml [2018-11-23 14:38:15,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:38:15,471 INFO L168 Benchmark]: Toolchain (without parser) took 14743.69 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 387.4 MB). Free memory was 953.8 MB in the beginning and 793.0 MB in the end (delta: 160.8 MB). Peak memory consumption was 548.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:38:15,472 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:38:15,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1001.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 953.8 MB in the beginning and 989.4 MB in the end (delta: -35.7 MB). Peak memory consumption was 125.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:38:15,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.57 ms. Allocated memory is still 1.2 GB. Free memory was 989.4 MB in the beginning and 975.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:38:15,473 INFO L168 Benchmark]: Boogie Preprocessor took 48.21 ms. Allocated memory is still 1.2 GB. Free memory was 975.8 MB in the beginning and 972.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:38:15,473 INFO L168 Benchmark]: RCFGBuilder took 689.60 ms. Allocated memory is still 1.2 GB. Free memory was 972.4 MB in the beginning and 893.0 MB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:38:15,474 INFO L168 Benchmark]: CodeCheck took 12826.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 242.2 MB). Free memory was 893.0 MB in the beginning and 800.7 MB in the end (delta: 92.3 MB). Peak memory consumption was 334.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:38:15,474 INFO L168 Benchmark]: Witness Printer took 102.74 ms. Allocated memory is still 1.4 GB. Free memory was 800.7 MB in the beginning and 793.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:38:15,476 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, 48 locations, 16 error locations. SAFE Result, 12.3s OverallTime, 33 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5242880 SDtfs, 1052312428 SDslu, 1048576 SDs, 0 SdLazy, 547900460 SolverSat, 333633352 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4031 GetRequests, 3681 SyntacticMatches, 162 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15877 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 536 NumberOfCodeBlocks, 536 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 504 ConstructedInterpolants, 0 QuantifiedInterpolants, 22540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 30 PerfectInterpolantSequences, 140/143 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1880]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1876]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1876]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1871]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1880]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1871]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 1871]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && argc <= 10000 - InvariantResult [Line: 1861]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 1880]: Loop Invariant Derived loop invariant: argc <= 10000 && 0 <= i + 2147483648 - InvariantResult [Line: 1876]: Loop Invariant Derived loop invariant: ((i <= 9999 && 0 <= j + 2147483648) && 0 <= i + 2147483648) && argc <= 10000 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1001.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 953.8 MB in the beginning and 989.4 MB in the end (delta: -35.7 MB). Peak memory consumption was 125.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.57 ms. Allocated memory is still 1.2 GB. Free memory was 989.4 MB in the beginning and 975.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.21 ms. Allocated memory is still 1.2 GB. Free memory was 975.8 MB in the beginning and 972.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 689.60 ms. Allocated memory is still 1.2 GB. Free memory was 972.4 MB in the beginning and 893.0 MB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. * CodeCheck took 12826.18 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 242.2 MB). Free memory was 893.0 MB in the beginning and 800.7 MB in the end (delta: 92.3 MB). Peak memory consumption was 334.5 MB. Max. memory is 11.5 GB. * Witness Printer took 102.74 ms. Allocated memory is still 1.4 GB. Free memory was 800.7 MB in the beginning and 793.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...