./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq_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_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/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 301c54c8b861008a1cf318e5b7f3396bc86db7c8 .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:41:34,486 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:41:34,487 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:41:34,494 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:41:34,494 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:41:34,495 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:41:34,496 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:41:34,497 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:41:34,498 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:41:34,499 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:41:34,499 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:41:34,499 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:41:34,500 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:41:34,501 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:41:34,501 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:41:34,502 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:41:34,503 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:41:34,504 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:41:34,505 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:41:34,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:41:34,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:41:34,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:41:34,509 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:41:34,510 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:41:34,510 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:41:34,510 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:41:34,511 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:41:34,512 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:41:34,512 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:41:34,513 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:41:34,513 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:41:34,514 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:41:34,514 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:41:34,514 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:41:34,515 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:41:34,515 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:41:34,515 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:41:34,525 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:41:34,525 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:41:34,526 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:41:34,526 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:41:34,526 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:41:34,526 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:41:34,526 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:41:34,527 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:41:34,527 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:41:34,527 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:41:34,527 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:41:34,528 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:41:34,528 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:41:34,528 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:41:34,528 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:41:34,528 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:41:34,528 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:41:34,528 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:41:34,528 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:41:34,529 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:41:34,529 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:41:34,529 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:41:34,529 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:41:34,529 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:41:34,529 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:41:34,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:41:34,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:41:34,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:41:34,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:41:34,530 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:41:34,530 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:41:34,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:41:34,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:41:34,530 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:41:34,530 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_fe494152-9b54-4d66-ba7b-e286b2038fcf/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 -> 301c54c8b861008a1cf318e5b7f3396bc86db7c8 [2018-11-10 04:41:34,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:41:34,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:41:34,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:41:34,570 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:41:34,570 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:41:34,571 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-11-10 04:41:34,614 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/data/9c10a60d2/89e4e9eb6f094522b5b29dff67618ec9/FLAG36a61dfed [2018-11-10 04:41:34,943 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:41:34,944 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-11-10 04:41:34,947 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/data/9c10a60d2/89e4e9eb6f094522b5b29dff67618ec9/FLAG36a61dfed [2018-11-10 04:41:34,958 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/data/9c10a60d2/89e4e9eb6f094522b5b29dff67618ec9 [2018-11-10 04:41:34,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:41:34,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:41:34,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:41:34,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:41:34,965 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:41:34,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:41:34" (1/1) ... [2018-11-10 04:41:34,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:34, skipping insertion in model container [2018-11-10 04:41:34,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:41:34" (1/1) ... [2018-11-10 04:41:34,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:41:34,990 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:41:35,113 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:41:35,115 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:41:35,126 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:41:35,136 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:41:35,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35 WrapperNode [2018-11-10 04:41:35,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:41:35,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:41:35,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:41:35,137 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:41:35,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:41:35,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:41:35,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:41:35,149 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:41:35,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... [2018-11-10 04:41:35,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:41:35,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:41:35,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:41:35,159 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:41:35,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/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 [2018-11-10 04:41:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:41:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:41:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:41:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:41:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:41:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:41:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-11-10 04:41:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-11-10 04:41:35,326 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:41:35,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:41:35 BoogieIcfgContainer [2018-11-10 04:41:35,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:41:35,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:41:35,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:41:35,329 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:41:35,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:41:34" (1/3) ... [2018-11-10 04:41:35,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9ae5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:41:35, skipping insertion in model container [2018-11-10 04:41:35,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:41:35" (2/3) ... [2018-11-10 04:41:35,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9ae5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:41:35, skipping insertion in model container [2018-11-10 04:41:35,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:41:35" (3/3) ... [2018-11-10 04:41:35,331 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-11-10 04:41:35,337 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:41:35,341 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:41:35,350 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:41:35,370 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:41:35,370 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:41:35,370 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:41:35,370 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:41:35,370 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:41:35,370 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:41:35,370 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:41:35,370 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:41:35,381 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-10 04:41:35,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 04:41:35,385 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:41:35,386 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:41:35,388 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:41:35,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:41:35,392 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2018-11-10 04:41:35,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:41:35,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:41:35,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:41:35,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:41:35,423 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:41:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:41:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:41:35,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:41:35,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:41:35,614 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:41:35,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:41:35,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:41:35,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:41:35,626 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2018-11-10 04:41:35,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:41:35,726 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-11-10 04:41:35,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:41:35,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-10 04:41:35,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:41:35,734 INFO L225 Difference]: With dead ends: 32 [2018-11-10 04:41:35,734 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 04:41:35,736 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:41:35,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 04:41:35,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 04:41:35,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 04:41:35,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-10 04:41:35,763 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-11-10 04:41:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:41:35,763 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-10 04:41:35,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:41:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-10 04:41:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 04:41:35,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:41:35,765 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:41:35,765 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:41:35,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:41:35,766 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2018-11-10 04:41:35,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:41:35,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:41:35,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:41:35,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:41:35,767 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:41:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:41:35,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 04:41:35,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:41:35,919 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 04:41:35,920 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-11-10 04:41:35,921 INFO L202 CegarAbsIntRunner]: [0], [4], [6], [9], [11], [17], [20], [21], [23], [24], [25], [26], [27], [29], [30], [31], [32] [2018-11-10 04:41:35,964 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:41:35,964 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:41:36,046 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:41:36,085 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 04:41:36,086 INFO L272 AbstractInterpreter]: Visited 17 different actions 42 times. Merged at 2 different actions 6 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 6 variables. [2018-11-10 04:41:36,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:41:36,091 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 04:41:36,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:41:36,091 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:41:36,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:41:36,097 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 04:41:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:41:36,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:41:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 04:41:38,277 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:41:44,471 WARN L179 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2018-11-10 04:41:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 04:41:44,561 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 04:41:44,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 17 [2018-11-10 04:41:44,562 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 04:41:44,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 04:41:44,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 04:41:44,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=226, Unknown=2, NotChecked=0, Total=272 [2018-11-10 04:41:44,563 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 14 states. [2018-11-10 04:41:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:41:44,795 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-10 04:41:44,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 04:41:44,795 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 19 [2018-11-10 04:41:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:41:44,795 INFO L225 Difference]: With dead ends: 23 [2018-11-10 04:41:44,796 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:41:44,797 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=89, Invalid=371, Unknown=2, NotChecked=0, Total=462 [2018-11-10 04:41:44,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:41:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:41:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:41:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:41:44,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-11-10 04:41:44,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:41:44,798 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:41:44,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 04:41:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:41:44,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:41:44,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:41:44,825 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 04:41:44,825 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:41:44,825 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:41:44,825 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:41:44,825 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:41:44,826 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:41:44,826 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 12 19) the Hoare annotation is: true [2018-11-10 04:41:44,826 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 12 19) no Hoare annotation was computed. [2018-11-10 04:41:44,826 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-10 04:41:44,826 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-11-10 04:41:44,827 INFO L428 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: true [2018-11-10 04:41:44,827 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-10 04:41:44,828 INFO L425 ceAbstractionStarter]: For program point L16-2(lines 12 19) no Hoare annotation was computed. [2018-11-10 04:41:44,828 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-11-10 04:41:44,828 INFO L425 ceAbstractionStarter]: For program point sumEXIT(lines 4 10) no Hoare annotation was computed. [2018-11-10 04:41:44,828 INFO L421 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (not (= 0 (mod sum_~n 4294967296))) (= |sum_#in~m| sum_~m)) [2018-11-10 04:41:44,828 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-10 04:41:44,828 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 9) no Hoare annotation was computed. [2018-11-10 04:41:44,828 INFO L425 ceAbstractionStarter]: For program point sumFINAL(lines 4 10) no Hoare annotation was computed. [2018-11-10 04:41:44,829 INFO L428 ceAbstractionStarter]: At program point sumENTRY(lines 4 10) the Hoare annotation is: true [2018-11-10 04:41:44,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:41:44 BoogieIcfgContainer [2018-11-10 04:41:44,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:41:44,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:41:44,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:41:44,831 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:41:44,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:41:35" (3/4) ... [2018-11-10 04:41:44,835 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:41:44,839 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:41:44,839 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:41:44,839 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2018-11-10 04:41:44,841 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 04:41:44,842 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:41:44,842 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 04:41:44,871 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fe494152-9b54-4d66-ba7b-e286b2038fcf/bin-2019/utaipan/witness.graphml [2018-11-10 04:41:44,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:41:44,872 INFO L168 Benchmark]: Toolchain (without parser) took 9911.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 960.3 MB in the beginning and 972.4 MB in the end (delta: -12.1 MB). Peak memory consumption was 147.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:41:44,873 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:41:44,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.45 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:41:44,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.52 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:41:44,874 INFO L168 Benchmark]: Boogie Preprocessor took 9.85 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:41:44,874 INFO L168 Benchmark]: RCFGBuilder took 167.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:41:44,874 INFO L168 Benchmark]: TraceAbstraction took 9504.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.1 MB in the end (delta: 174.8 MB). Peak memory consumption was 174.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:41:44,875 INFO L168 Benchmark]: Witness Printer took 40.45 ms. Allocated memory is still 1.2 GB. Free memory was 975.1 MB in the beginning and 972.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:41:44,877 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.45 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 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 11.52 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.85 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 167.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9504.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.1 MB in the end (delta: 174.8 MB). Peak memory consumption was 174.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.45 ms. Allocated memory is still 1.2 GB. Free memory was 975.1 MB in the beginning and 972.4 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: 17]: 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, 20 locations, 1 error locations. SAFE Result, 9.4s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 14 SDslu, 99 SDs, 0 SdLazy, 109 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 25 SyntacticMatches, 8 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 19 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 3 QuantifiedInterpolants, 10446 SizeOfPredicates, 9 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...