./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d39666f7b9e3c393826226f879477647e7209cc ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:33:27,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:33:27,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:33:27,858 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:33:27,858 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:33:27,859 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:33:27,860 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:33:27,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:33:27,863 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:33:27,864 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:33:27,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:33:27,865 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:33:27,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:33:27,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:33:27,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:33:27,868 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:33:27,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:33:27,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:33:27,873 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:33:27,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:33:27,875 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:33:27,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:33:27,879 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:33:27,879 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:33:27,879 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:33:27,880 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:33:27,882 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:33:27,882 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:33:27,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:33:27,884 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:33:27,885 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:33:27,886 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:33:27,886 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:33:27,886 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:33:27,887 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:33:27,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:33:27,888 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:33:27,901 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:33:27,901 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:33:27,902 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:33:27,902 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:33:27,902 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:33:27,902 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:33:27,903 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:33:27,903 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:33:27,903 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:33:27,903 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:33:27,903 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:33:27,904 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:33:27,904 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:33:27,904 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:33:27,904 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:33:27,904 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:33:27,905 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:33:27,906 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:33:27,907 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:33:27,907 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:33:27,907 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:33:27,907 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:33:27,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:33:27,907 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:33:27,908 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:33:27,908 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:33:27,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:33:27,908 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:33:27,908 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:33:27,908 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:33:27,908 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:33:27,909 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:33:27,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:33:27,909 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:33:27,909 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 8d39666f7b9e3c393826226f879477647e7209cc [2018-10-26 21:33:27,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:33:27,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:33:27,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:33:27,961 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:33:27,961 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:33:27,962 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/../../sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-10-26 21:33:28,014 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/data/16634f111/ac5388c9ff1742fa8c40da1875e2458d/FLAG1e5ae6df1 [2018-10-26 21:33:28,373 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:33:28,373 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/sv-benchmarks/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-10-26 21:33:28,378 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/data/16634f111/ac5388c9ff1742fa8c40da1875e2458d/FLAG1e5ae6df1 [2018-10-26 21:33:28,388 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/data/16634f111/ac5388c9ff1742fa8c40da1875e2458d [2018-10-26 21:33:28,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:33:28,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:33:28,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:33:28,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:33:28,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:33:28,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0c1537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28, skipping insertion in model container [2018-10-26 21:33:28,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:33:28,425 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:33:28,565 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:33:28,567 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:33:28,581 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:33:28,593 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:33:28,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28 WrapperNode [2018-10-26 21:33:28,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:33:28,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:33:28,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:33:28,595 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:33:28,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:33:28,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:33:28,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:33:28,612 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:33:28,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... [2018-10-26 21:33:28,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:33:28,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:33:28,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:33:28,628 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:33:28,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2018-10-26 21:33:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:33:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:33:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:33:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:33:28,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:33:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:33:28,741 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-10-26 21:33:28,741 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-10-26 21:33:28,870 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:33:28,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:33:28 BoogieIcfgContainer [2018-10-26 21:33:28,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:33:28,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:33:28,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:33:28,875 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:33:28,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:33:28" (1/3) ... [2018-10-26 21:33:28,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5a7287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:33:28, skipping insertion in model container [2018-10-26 21:33:28,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:33:28" (2/3) ... [2018-10-26 21:33:28,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f5a7287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:33:28, skipping insertion in model container [2018-10-26 21:33:28,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:33:28" (3/3) ... [2018-10-26 21:33:28,879 INFO L112 eAbstractionObserver]: Analyzing ICFG id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2018-10-26 21:33:28,887 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:33:28,894 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:33:28,908 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:33:28,933 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:33:28,933 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:33:28,933 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:33:28,933 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:33:28,933 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:33:28,933 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:33:28,933 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:33:28,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:33:28,947 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-10-26 21:33:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 21:33:28,952 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:33:28,953 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:33:28,955 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:33:28,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:28,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1250208381, now seen corresponding path program 1 times [2018-10-26 21:33:28,962 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:33:29,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:29,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:29,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:29,005 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:33:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:33:29,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:33:29,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:33:29,227 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:33:29,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:33:29,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:33:29,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:33:29,241 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2018-10-26 21:33:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:29,281 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-10-26 21:33:29,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:33:29,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-26 21:33:29,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:29,289 INFO L225 Difference]: With dead ends: 33 [2018-10-26 21:33:29,289 INFO L226 Difference]: Without dead ends: 19 [2018-10-26 21:33:29,292 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:33:29,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-26 21:33:29,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-10-26 21:33:29,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-26 21:33:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-26 21:33:29,329 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2018-10-26 21:33:29,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:33:29,329 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-26 21:33:29,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:33:29,329 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-26 21:33:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 21:33:29,331 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:33:29,331 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:33:29,331 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:33:29,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:29,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1951994857, now seen corresponding path program 1 times [2018-10-26 21:33:29,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:33:29,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:29,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:29,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:29,333 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:33:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 21:33:29,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:33:29,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:33:29,591 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:33:29,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:33:29,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:33:29,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:33:29,593 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2018-10-26 21:33:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:29,638 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-10-26 21:33:29,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:33:29,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-10-26 21:33:29,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:29,639 INFO L225 Difference]: With dead ends: 31 [2018-10-26 21:33:29,639 INFO L226 Difference]: Without dead ends: 23 [2018-10-26 21:33:29,640 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:33:29,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-26 21:33:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-10-26 21:33:29,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-26 21:33:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-10-26 21:33:29,644 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2018-10-26 21:33:29,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:33:29,645 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-10-26 21:33:29,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:33:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-10-26 21:33:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 21:33:29,647 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:33:29,647 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:33:29,647 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:33:29,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:29,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1923365706, now seen corresponding path program 1 times [2018-10-26 21:33:29,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:33:29,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:29,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:29,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:29,649 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:33:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-26 21:33:29,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:33:29,815 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 21:33:29,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-10-26 21:33:29,817 INFO L202 CegarAbsIntRunner]: [0], [4], [6], [9], [11], [17], [20], [21], [23], [27], [28], [29], [30], [31], [33], [34], [35], [36] [2018-10-26 21:33:29,855 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 21:33:29,856 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 21:33:29,965 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 21:33:30,084 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 21:33:30,085 INFO L272 AbstractInterpreter]: Visited 17 different actions 62 times. Merged at 6 different actions 24 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-10-26 21:33:30,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:30,116 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 21:33:30,183 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 60.61% of their original sizes. [2018-10-26 21:33:30,183 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 21:33:30,740 INFO L415 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2018-10-26 21:33:30,740 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 21:33:30,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:33:30,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [8] total 20 [2018-10-26 21:33:30,741 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:33:30,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-26 21:33:30,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-26 21:33:30,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-26 21:33:30,742 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 14 states. [2018-10-26 21:33:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:31,936 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-10-26 21:33:31,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-26 21:33:31,937 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 20 [2018-10-26 21:33:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:31,938 INFO L225 Difference]: With dead ends: 29 [2018-10-26 21:33:31,938 INFO L226 Difference]: Without dead ends: 25 [2018-10-26 21:33:31,939 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2018-10-26 21:33:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-26 21:33:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2018-10-26 21:33:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-26 21:33:31,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-10-26 21:33:31,944 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2018-10-26 21:33:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:33:31,945 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-10-26 21:33:31,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-26 21:33:31,946 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-10-26 21:33:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 21:33:31,946 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:33:31,946 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:33:31,947 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:33:31,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:33:31,948 INFO L82 PathProgramCache]: Analyzing trace with hash 405472645, now seen corresponding path program 2 times [2018-10-26 21:33:31,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:33:31,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:31,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:33:31,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:33:31,949 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:33:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:33:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-26 21:33:32,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:33:32,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:33:32,009 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:33:32,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:33:32,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:33:32,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:33:32,010 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 5 states. [2018-10-26 21:33:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:33:32,026 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-10-26 21:33:32,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:33:32,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-10-26 21:33:32,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:33:32,027 INFO L225 Difference]: With dead ends: 23 [2018-10-26 21:33:32,027 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:33:32,028 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:33:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:33:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:33:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:33:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:33:32,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-10-26 21:33:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:33:32,029 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:33:32,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:33:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:33:32,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:33:32,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:33:32,083 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 21:33:32,084 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:33:32,084 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:33:32,084 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:33:32,084 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:33:32,084 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:33:32,084 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2018-10-26 21:33:32,084 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2018-10-26 21:33:32,085 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-26 21:33:32,085 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-10-26 21:33:32,085 INFO L421 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (* 2 main_~input~0))) (and (<= .cse0 4294967294) (<= 0 (+ .cse0 4294967296)))) [2018-10-26 21:33:32,085 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-10-26 21:33:32,085 INFO L425 ceAbstractionStarter]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2018-10-26 21:33:32,085 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-10-26 21:33:32,085 INFO L425 ceAbstractionStarter]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2018-10-26 21:33:32,086 INFO L425 ceAbstractionStarter]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-26 21:33:32,086 INFO L428 ceAbstractionStarter]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2018-10-26 21:33:32,086 INFO L425 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-10-26 21:33:32,086 INFO L421 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: (let ((.cse0 (* 2 |id_#in~x|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0) (let ((.cse1 (* 2 id_~x))) (and (<= 0 (+ .cse1 4294967296)) (not (= id_~x 0)) (<= .cse1 4294967294))))) [2018-10-26 21:33:32,086 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 21:33:32,086 INFO L425 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-10-26 21:33:32,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:33:32 BoogieIcfgContainer [2018-10-26 21:33:32,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:33:32,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:33:32,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:33:32,089 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:33:32,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:33:28" (3/4) ... [2018-10-26 21:33:32,093 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:33:32,097 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:33:32,097 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:33:32,097 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-10-26 21:33:32,100 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 21:33:32,100 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 21:33:32,100 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 21:33:32,132 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9a855e12-343e-4392-a4eb-91b5b8e22979/bin-2019/utaipan/witness.graphml [2018-10-26 21:33:32,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:33:32,133 INFO L168 Benchmark]: Toolchain (without parser) took 3739.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 958.5 MB in the beginning and 983.1 MB in the end (delta: -24.6 MB). Peak memory consumption was 129.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:33:32,134 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:33:32,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.95 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:33:32,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.95 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:33:32,135 INFO L168 Benchmark]: Boogie Preprocessor took 15.99 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:33:32,135 INFO L168 Benchmark]: RCFGBuilder took 243.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.6 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-10-26 21:33:32,136 INFO L168 Benchmark]: TraceAbstraction took 3217.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 11.5 GB. [2018-10-26 21:33:32,136 INFO L168 Benchmark]: Witness Printer took 43.46 ms. Allocated memory is still 1.2 GB. Free memory was 985.8 MB in the beginning and 983.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:33:32,139 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.95 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.95 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.99 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.6 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3217.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 11.5 GB. * Witness Printer took 43.46 ms. Allocated memory is still 1.2 GB. Free memory was 985.8 MB in the beginning and 983.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 58 SDslu, 237 SDs, 0 SdLazy, 29 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8894736842105264 AbsIntWeakeningRatio, 0.5789473684210527 AbsIntAvgWeakeningVarsNumRemoved, 3.263157894736842 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 50 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 21/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...