./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/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 9918b49e0d76e4ce36b6a6760021b33460a8ae9b ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 23:11:29,974 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:11:29,975 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:11:29,981 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:11:29,982 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:11:29,982 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:11:29,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:11:29,984 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:11:29,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:11:29,986 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:11:29,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:11:29,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:11:29,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:11:29,988 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:11:29,989 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:11:29,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:11:29,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:11:29,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:11:29,992 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:11:29,993 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:11:29,994 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:11:29,995 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:11:29,996 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:11:29,996 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:11:29,997 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:11:29,997 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:11:29,998 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:11:29,998 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:11:29,998 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:11:29,999 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:11:29,999 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:11:30,000 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:11:30,000 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:11:30,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:11:30,001 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:11:30,001 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:11:30,001 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2018-11-22 23:11:30,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:11:30,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:11:30,011 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 23:11:30,011 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-22 23:11:30,011 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:11:30,011 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:11:30,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:11:30,012 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 23:11:30,012 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 23:11:30,012 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:11:30,012 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 23:11:30,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:11:30,012 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 23:11:30,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 23:11:30,013 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 23:11:30,013 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-22 23:11:30,013 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 23:11:30,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:11:30,013 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:11:30,013 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 23:11:30,013 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-22 23:11:30,014 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-22 23:11:30,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:11:30,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 23:11:30,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-22 23:11:30,014 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:11:30,014 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 23:11:30,014 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 23:11:30,015 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-22 23:11:30,015 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 23:11:30,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 23:11:30,015 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_387357d5-7d42-4728-874c-7faecde367bd/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 -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2018-11-22 23:11:30,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:11:30,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:11:30,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:11:30,054 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:11:30,054 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:11:30,055 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-11-22 23:11:30,099 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/data/b065b8b5f/f3c8bd2e4bbd43ee9101a88edfaf9f8a/FLAG1b2fac80b [2018-11-22 23:11:30,437 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:11:30,438 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-11-22 23:11:30,444 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/data/b065b8b5f/f3c8bd2e4bbd43ee9101a88edfaf9f8a/FLAG1b2fac80b [2018-11-22 23:11:30,861 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/data/b065b8b5f/f3c8bd2e4bbd43ee9101a88edfaf9f8a [2018-11-22 23:11:30,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:11:30,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:11:30,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:11:30,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:11:30,868 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:11:30,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:11:30" (1/1) ... [2018-11-22 23:11:30,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14452af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:30, skipping insertion in model container [2018-11-22 23:11:30,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:11:30" (1/1) ... [2018-11-22 23:11:30,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:11:30,891 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:11:30,993 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:11:30,995 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:11:31,006 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:11:31,016 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:11:31,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31 WrapperNode [2018-11-22 23:11:31,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:11:31,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:11:31,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:11:31,017 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:11:31,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:11:31,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:11:31,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:11:31,037 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:11:31,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:11:31,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:11:31,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:11:31,050 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:11:31,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:11:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/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 [2018-11-22 23:11:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:11:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:11:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-22 23:11:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-22 23:11:31,293 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:11:31,293 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-22 23:11:31,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:11:31 BoogieIcfgContainer [2018-11-22 23:11:31,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:11:31,293 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-22 23:11:31,294 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-22 23:11:31,300 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-22 23:11:31,300 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:11:31" (1/1) ... [2018-11-22 23:11:31,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:11:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2018-11-22 23:11:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2018-11-22 23:11:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-22 23:11:31,333 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2018-11-22 23:11:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-11-22 23:11:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-22 23:11:31,442 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2018-11-22 23:11:31,558 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-22 23:11:31,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-22 23:11:31,561 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:31,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:31,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2018-11-22 23:11:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2018-11-22 23:11:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-22 23:11:31,674 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2018-11-22 23:11:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-11-22 23:11:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-22 23:11:31,737 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:31,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2018-11-22 23:11:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2018-11-22 23:11:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-22 23:11:31,886 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:32,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:32,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2018-11-22 23:11:32,047 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2018-11-22 23:11:32,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-22 23:11:32,047 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 23:11:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:32,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2018-11-22 23:11:32,113 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2018-11-22 23:11:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-22 23:11:32,113 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-22 23:11:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2018-11-22 23:11:32,325 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2018-11-22 23:11:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-22 23:11:32,325 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-22 23:11:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:32,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2018-11-22 23:11:32,493 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2018-11-22 23:11:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-22 23:11:32,494 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-22 23:11:32,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2018-11-22 23:11:32,611 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2018-11-22 23:11:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 23:11:32,611 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 23:11:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 44 states and 60 transitions. [2018-11-22 23:11:32,879 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 60 transitions. [2018-11-22 23:11:32,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 23:11:32,880 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:33,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:33,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 51 states and 69 transitions. [2018-11-22 23:11:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2018-11-22 23:11:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 23:11:33,274 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:33,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 54 states and 77 transitions. [2018-11-22 23:11:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2018-11-22 23:11:33,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 23:11:33,421 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 56 states and 83 transitions. [2018-11-22 23:11:33,512 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 83 transitions. [2018-11-22 23:11:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-22 23:11:33,512 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-22 23:11:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:33,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 54 states and 77 transitions. [2018-11-22 23:11:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2018-11-22 23:11:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-22 23:11:33,592 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:33,608 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-22 23:11:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 52 states and 72 transitions. [2018-11-22 23:11:33,672 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2018-11-22 23:11:33,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-22 23:11:33,673 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-22 23:11:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 59 states and 81 transitions. [2018-11-22 23:11:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2018-11-22 23:11:34,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-22 23:11:34,094 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 23:11:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 63 states and 87 transitions. [2018-11-22 23:11:34,251 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2018-11-22 23:11:34,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-22 23:11:34,252 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:34,342 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2018-11-22 23:11:34,816 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2018-11-22 23:11:34,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-22 23:11:34,817 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:34,894 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:35,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 74 states and 111 transitions. [2018-11-22 23:11:35,226 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2018-11-22 23:11:35,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-22 23:11:35,227 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:11:35,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 76 states and 112 transitions. [2018-11-22 23:11:35,355 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 112 transitions. [2018-11-22 23:11:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-22 23:11:35,355 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 18 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 23:11:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 77 states and 115 transitions. [2018-11-22 23:11:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 115 transitions. [2018-11-22 23:11:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-22 23:11:35,701 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:36,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 85 states and 129 transitions. [2018-11-22 23:11:36,468 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 129 transitions. [2018-11-22 23:11:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-22 23:11:36,469 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:37,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 89 states and 137 transitions. [2018-11-22 23:11:37,031 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 137 transitions. [2018-11-22 23:11:37,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-22 23:11:37,031 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:37,124 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:37,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 91 states and 142 transitions. [2018-11-22 23:11:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 142 transitions. [2018-11-22 23:11:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-22 23:11:37,499 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-22 23:11:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 96 states and 153 transitions. [2018-11-22 23:11:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 153 transitions. [2018-11-22 23:11:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-22 23:11:38,189 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:38,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:38,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 102 states and 161 transitions. [2018-11-22 23:11:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 161 transitions. [2018-11-22 23:11:38,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-22 23:11:38,873 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:39,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 105 states and 166 transitions. [2018-11-22 23:11:39,100 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 166 transitions. [2018-11-22 23:11:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-22 23:11:39,100 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:39,227 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 108 states and 173 transitions. [2018-11-22 23:11:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 173 transitions. [2018-11-22 23:11:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-22 23:11:39,611 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-22 23:11:39,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:39,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 108 states and 172 transitions. [2018-11-22 23:11:39,797 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 172 transitions. [2018-11-22 23:11:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-22 23:11:39,797 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-22 23:11:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:11:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 57 proven. 33 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-22 23:11:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-22 23:11:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2018-11-22 23:11:40,205 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-11-22 23:11:40,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 23:11:40,205 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2018-11-22 23:11:40,212 INFO L775 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2018-11-22 23:11:40,285 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-22 23:11:40,287 INFO L579 CodeCheckObserver]: Invariant with dag size 39 [2018-11-22 23:11:40,294 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-22 23:11:40,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:11:40 ImpRootNode [2018-11-22 23:11:40,294 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-22 23:11:40,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:11:40,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:11:40,295 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:11:40,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:11:31" (3/4) ... [2018-11-22 23:11:40,297 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 23:11:40,301 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-22 23:11:40,303 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-22 23:11:40,304 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-22 23:11:40,304 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 23:11:40,334 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_387357d5-7d42-4728-874c-7faecde367bd/bin-2019/ukojak/witness.graphml [2018-11-22 23:11:40,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:11:40,335 INFO L168 Benchmark]: Toolchain (without parser) took 9471.07 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 272.6 MB). Free memory was 961.9 MB in the beginning and 1.2 GB in the end (delta: -204.6 MB). Peak memory consumption was 68.0 MB. Max. memory is 11.5 GB. [2018-11-22 23:11:40,336 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:11:40,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.32 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:11:40,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-22 23:11:40,337 INFO L168 Benchmark]: Boogie Preprocessor took 12.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:11:40,337 INFO L168 Benchmark]: RCFGBuilder took 243.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-22 23:11:40,337 INFO L168 Benchmark]: CodeCheck took 9000.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 139.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -55.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 11.5 GB. [2018-11-22 23:11:40,338 INFO L168 Benchmark]: Witness Printer took 39.80 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:11:40,339 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 2 procedures, 36 locations, 8 error locations. SAFE Result, 8.8s OverallTime, 32 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 1075319452 SDslu, -2147483648 SDs, 0 SdLazy, -2050974082 SolverSat, -443925946 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6220 GetRequests, 5637 SyntacticMatches, 307 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44915 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 715 NumberOfCodeBlocks, 715 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 684 ConstructedInterpolants, 0 QuantifiedInterpolants, 93356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 10 PerfectInterpolantSequences, 429/1154 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: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((a == 63 && b == 18) || ((63 <= b + a && b == 18) && b + a <= 63)) || ((b == 18 && 63 <= 3 * b + a) && 3 * b + a <= 63)) || ((b + a <= 18 && b + 18 <= 3 * a) && a < b + 1)) || ((2 * b + a <= 63 && 63 <= 2 * b + a) && b == 18)) || (((b <= 0 && a <= 9) && b + 1 <= a) && 0 < b + 1) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.32 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * CodeCheck took 9000.97 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 139.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -55.6 MB). Peak memory consumption was 83.9 MB. Max. memory is 11.5 GB. * Witness Printer took 39.80 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...