./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/byte_add_1_true-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1_true-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/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 32bit --witnessprinter.graph.data.programhash 6e973c5cecb5d30af2cf4ea74d1b0b1563334ffe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:16:44,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:16:44,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:16:44,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:16:44,179 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:16:44,180 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:16:44,181 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:16:44,182 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:16:44,184 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:16:44,185 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:16:44,186 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:16:44,186 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:16:44,187 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:16:44,188 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:16:44,189 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:16:44,190 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:16:44,191 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:16:44,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:16:44,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:16:44,196 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:16:44,197 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:16:44,198 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:16:44,200 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:16:44,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:16:44,201 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:16:44,202 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:16:44,203 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:16:44,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:16:44,205 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:16:44,206 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:16:44,206 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:16:44,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:16:44,207 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:16:44,207 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:16:44,208 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:16:44,208 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:16:44,209 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-10-27 05:16:44,221 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:16:44,221 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:16:44,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:16:44,222 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:16:44,223 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:16:44,223 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:16:44,224 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:16:44,224 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 05:16:44,224 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:16:44,224 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:16:44,224 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 05:16:44,224 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:16:44,225 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:16:44,225 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:16:44,225 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:16:44,225 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:16:44,225 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 05:16:44,225 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:16:44,226 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:16:44,226 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 05:16:44,226 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 05:16:44,226 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:16:44,226 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:16:44,226 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:16:44,227 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:16:44,227 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:16:44,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:16:44,229 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 05:16:44,230 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:16:44,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:16:44,230 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_fb814295-d967-48bf-b60e-1c74fb50bca0/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e973c5cecb5d30af2cf4ea74d1b0b1563334ffe [2018-10-27 05:16:44,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:16:44,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:16:44,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:16:44,283 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:16:44,283 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:16:44,284 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/byte_add_1_true-unreach-call_true-no-overflow_true-termination.i [2018-10-27 05:16:44,336 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/data/25b5cee4d/a1ab96d59bea49a39c1f94207d199697/FLAG9f23a131d [2018-10-27 05:16:44,733 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:16:44,735 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/sv-benchmarks/c/bitvector/byte_add_1_true-unreach-call_true-no-overflow_true-termination.i [2018-10-27 05:16:44,743 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/data/25b5cee4d/a1ab96d59bea49a39c1f94207d199697/FLAG9f23a131d [2018-10-27 05:16:44,755 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/data/25b5cee4d/a1ab96d59bea49a39c1f94207d199697 [2018-10-27 05:16:44,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:16:44,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:16:44,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:44,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:16:44,765 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:16:44,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:44" (1/1) ... [2018-10-27 05:16:44,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5672fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:44, skipping insertion in model container [2018-10-27 05:16:44,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:44" (1/1) ... [2018-10-27 05:16:44,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:16:44,804 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:16:44,968 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:44,972 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:16:45,004 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:45,016 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:16:45,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45 WrapperNode [2018-10-27 05:16:45,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:45,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:45,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:16:45,018 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:16:45,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:45,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:16:45,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:16:45,059 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:16:45,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... [2018-10-27 05:16:45,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:16:45,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:16:45,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:16:45,088 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:16:45,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/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 [2018-10-27 05:16:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:16:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:16:46,693 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:16:46,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:46 BoogieIcfgContainer [2018-10-27 05:16:46,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:16:46,694 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 05:16:46,694 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 05:16:46,703 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 05:16:46,703 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:46" (1/1) ... [2018-10-27 05:16:46,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:16:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 97 states and 116 transitions. [2018-10-27 05:16:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 116 transitions. [2018-10-27 05:16:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-27 05:16:46,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:46,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 96 states and 115 transitions. [2018-10-27 05:16:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 115 transitions. [2018-10-27 05:16:46,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-27 05:16:46,879 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:46,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 95 states and 114 transitions. [2018-10-27 05:16:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 114 transitions. [2018-10-27 05:16:46,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:16:46,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:46,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 94 states and 113 transitions. [2018-10-27 05:16:46,946 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 113 transitions. [2018-10-27 05:16:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:46,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 93 states and 112 transitions. [2018-10-27 05:16:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2018-10-27 05:16:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:46,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 92 states and 111 transitions. [2018-10-27 05:16:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 111 transitions. [2018-10-27 05:16:47,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-27 05:16:47,011 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 91 states and 110 transitions. [2018-10-27 05:16:47,059 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2018-10-27 05:16:47,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:16:47,060 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 90 states and 109 transitions. [2018-10-27 05:16:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 109 transitions. [2018-10-27 05:16:47,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:16:47,095 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 89 states and 106 transitions. [2018-10-27 05:16:47,114 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 106 transitions. [2018-10-27 05:16:47,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:16:47,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 105 transitions. [2018-10-27 05:16:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2018-10-27 05:16:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:16:47,138 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 87 states and 104 transitions. [2018-10-27 05:16:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2018-10-27 05:16:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:47,167 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 86 states and 103 transitions. [2018-10-27 05:16:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 103 transitions. [2018-10-27 05:16:47,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:47,208 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 85 states and 102 transitions. [2018-10-27 05:16:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 102 transitions. [2018-10-27 05:16:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:47,239 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 84 states and 101 transitions. [2018-10-27 05:16:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2018-10-27 05:16:47,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:47,258 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 83 states and 100 transitions. [2018-10-27 05:16:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2018-10-27 05:16:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:47,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 82 states and 99 transitions. [2018-10-27 05:16:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2018-10-27 05:16:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:47,297 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 81 states and 98 transitions. [2018-10-27 05:16:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2018-10-27 05:16:47,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:47,315 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 80 states and 97 transitions. [2018-10-27 05:16:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 97 transitions. [2018-10-27 05:16:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:47,336 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 79 states and 96 transitions. [2018-10-27 05:16:47,351 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 96 transitions. [2018-10-27 05:16:47,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:47,352 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 78 states and 95 transitions. [2018-10-27 05:16:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 95 transitions. [2018-10-27 05:16:47,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:47,367 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 77 states and 94 transitions. [2018-10-27 05:16:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2018-10-27 05:16:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:16:47,382 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 76 states and 93 transitions. [2018-10-27 05:16:47,396 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2018-10-27 05:16:47,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:16:47,396 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 75 states and 92 transitions. [2018-10-27 05:16:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2018-10-27 05:16:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:16:47,411 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 74 states and 91 transitions. [2018-10-27 05:16:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-10-27 05:16:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:16:47,440 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 73 states and 90 transitions. [2018-10-27 05:16:47,467 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-10-27 05:16:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:16:47,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 72 states and 89 transitions. [2018-10-27 05:16:47,489 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-10-27 05:16:47,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:16:47,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 71 states and 88 transitions. [2018-10-27 05:16:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-10-27 05:16:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-27 05:16:47,508 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 70 states and 87 transitions. [2018-10-27 05:16:47,527 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2018-10-27 05:16:47,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:16:47,528 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 69 states and 86 transitions. [2018-10-27 05:16:47,548 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2018-10-27 05:16:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:16:47,548 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 68 states and 85 transitions. [2018-10-27 05:16:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2018-10-27 05:16:47,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:16:47,562 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 67 states and 84 transitions. [2018-10-27 05:16:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 84 transitions. [2018-10-27 05:16:47,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:16:47,574 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 66 states and 83 transitions. [2018-10-27 05:16:47,586 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2018-10-27 05:16:47,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 05:16:47,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 65 states and 82 transitions. [2018-10-27 05:16:47,599 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2018-10-27 05:16:47,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:16:47,599 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 64 states and 81 transitions. [2018-10-27 05:16:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2018-10-27 05:16:47,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:16:47,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 63 states and 80 transitions. [2018-10-27 05:16:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2018-10-27 05:16:47,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:16:47,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 62 states and 79 transitions. [2018-10-27 05:16:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2018-10-27 05:16:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 05:16:47,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:47,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 61 states and 78 transitions. [2018-10-27 05:16:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2018-10-27 05:16:47,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:16:47,669 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 37 iterations. [2018-10-27 05:16:47,681 INFO L778 CodeCheckObserver]: All specifications hold 36 specifications checked. All of them hold [2018-10-27 05:16:47,893 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 05:16:47,899 INFO L582 CodeCheckObserver]: Invariant with dag size 1 [2018-10-27 05:16:47,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 05:16:47 ImpRootNode [2018-10-27 05:16:47,900 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 05:16:47,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:16:47,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:16:47,900 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:16:47,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:46" (3/4) ... [2018-10-27 05:16:47,906 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:16:47,920 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-10-27 05:16:47,920 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-27 05:16:47,920 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 05:16:47,997 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fb814295-d967-48bf-b60e-1c74fb50bca0/bin-2019/ukojak/witness.graphml [2018-10-27 05:16:47,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:16:47,998 INFO L168 Benchmark]: Toolchain (without parser) took 3239.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.1 MB in the beginning and 974.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:48,000 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:48,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.16 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 941.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:48,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.50 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:48,001 INFO L168 Benchmark]: Boogie Preprocessor took 28.00 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:48,001 INFO L168 Benchmark]: RCFGBuilder took 1605.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -133.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:48,001 INFO L168 Benchmark]: CodeCheck took 1205.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:48,002 INFO L168 Benchmark]: Witness Printer took 97.14 ms. Allocated memory is still 1.2 GB. Free memory was 981.9 MB in the beginning and 974.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:48,006 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, 112 locations, 36 error locations. SAFE Result, 0.9s OverallTime, 37 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -1260182240 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2651 GetRequests, 2651 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 3554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 0/0 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: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 68]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.16 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 941.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.50 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.00 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1605.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -133.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * CodeCheck took 1205.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.9 MB in the end (delta: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. * Witness Printer took 97.14 ms. Allocated memory is still 1.2 GB. Free memory was 981.9 MB in the beginning and 974.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...