./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/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_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/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 0.1.23-635dfa2 [2018-12-03 04:28:22,412 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 04:28:22,413 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 04:28:22,419 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 04:28:22,419 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 04:28:22,420 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 04:28:22,420 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 04:28:22,421 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 04:28:22,422 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 04:28:22,422 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 04:28:22,423 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 04:28:22,423 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 04:28:22,423 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 04:28:22,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 04:28:22,424 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 04:28:22,425 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 04:28:22,425 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 04:28:22,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 04:28:22,427 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 04:28:22,428 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 04:28:22,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 04:28:22,429 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 04:28:22,430 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 04:28:22,430 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 04:28:22,430 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 04:28:22,431 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 04:28:22,431 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 04:28:22,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 04:28:22,432 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 04:28:22,432 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 04:28:22,433 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 04:28:22,433 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 04:28:22,433 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 04:28:22,433 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 04:28:22,434 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 04:28:22,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 04:28:22,434 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 04:28:22,441 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 04:28:22,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 04:28:22,442 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 04:28:22,442 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 04:28:22,442 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 04:28:22,442 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 04:28:22,442 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 04:28:22,442 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 04:28:22,442 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 04:28:22,443 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 04:28:22,443 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 04:28:22,443 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 04:28:22,443 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 04:28:22,443 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 04:28:22,443 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 04:28:22,443 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 04:28:22,444 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 04:28:22,444 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 04:28:22,445 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 04:28:22,445 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 04:28:22,445 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_61b22dac-2ff7-475a-9d49-242529e6c06d/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 [2018-12-03 04:28:22,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 04:28:22,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 04:28:22,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 04:28:22,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 04:28:22,476 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 04:28:22,476 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-12-03 04:28:22,517 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/data/87b84155c/c1539383e73b42d88511199982181c35/FLAG5b43b6e24 [2018-12-03 04:28:22,834 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 04:28:22,835 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-12-03 04:28:22,838 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/data/87b84155c/c1539383e73b42d88511199982181c35/FLAG5b43b6e24 [2018-12-03 04:28:23,250 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/data/87b84155c/c1539383e73b42d88511199982181c35 [2018-12-03 04:28:23,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 04:28:23,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 04:28:23,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 04:28:23,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 04:28:23,257 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 04:28:23,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531953ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23, skipping insertion in model container [2018-12-03 04:28:23,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 04:28:23,280 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 04:28:23,402 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:28:23,404 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 04:28:23,412 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 04:28:23,420 INFO L195 MainTranslator]: Completed translation [2018-12-03 04:28:23,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23 WrapperNode [2018-12-03 04:28:23,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 04:28:23,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 04:28:23,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 04:28:23,421 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 04:28:23,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 04:28:23,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 04:28:23,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 04:28:23,432 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 04:28:23,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... [2018-12-03 04:28:23,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 04:28:23,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 04:28:23,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 04:28:23,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 04:28:23,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/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 [2018-12-03 04:28:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 04:28:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 04:28:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 04:28:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 04:28:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-12-03 04:28:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-12-03 04:28:23,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 04:28:23,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 04:28:23,574 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 04:28:23,574 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 04:28:23,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:28:23 BoogieIcfgContainer [2018-12-03 04:28:23,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 04:28:23,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 04:28:23,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 04:28:23,576 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 04:28:23,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 04:28:23" (1/3) ... [2018-12-03 04:28:23,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa66143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:28:23, skipping insertion in model container [2018-12-03 04:28:23,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:28:23" (2/3) ... [2018-12-03 04:28:23,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa66143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:28:23, skipping insertion in model container [2018-12-03 04:28:23,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:28:23" (3/3) ... [2018-12-03 04:28:23,578 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-12-03 04:28:23,584 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 04:28:23,589 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 04:28:23,598 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 04:28:23,615 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 04:28:23,615 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 04:28:23,615 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 04:28:23,616 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 04:28:23,616 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 04:28:23,616 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 04:28:23,616 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 04:28:23,616 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 04:28:23,625 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-12-03 04:28:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 04:28:23,629 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:28:23,629 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:28:23,630 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:28:23,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:28:23,634 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2018-12-03 04:28:23,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:28:23,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:28:23,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:28:23,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:28:23,663 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:28:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:28:23,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 04:28:23,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 04:28:23,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 04:28:23,844 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 04:28:23,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 04:28:23,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 04:28:23,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 04:28:23,855 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2018-12-03 04:28:23,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:28:23,914 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-12-03 04:28:23,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 04:28:23,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-12-03 04:28:23,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:28:23,921 INFO L225 Difference]: With dead ends: 32 [2018-12-03 04:28:23,921 INFO L226 Difference]: Without dead ends: 18 [2018-12-03 04:28:23,923 INFO L631 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 [2018-12-03 04:28:23,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-03 04:28:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-03 04:28:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-03 04:28:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-12-03 04:28:23,947 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-12-03 04:28:23,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:28:23,948 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-12-03 04:28:23,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 04:28:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-12-03 04:28:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 04:28:23,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 04:28:23,949 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 04:28:23,949 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 04:28:23,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:28:23,949 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2018-12-03 04:28:23,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 04:28:23,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:28:23,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:28:23,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 04:28:23,950 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 04:28:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:28:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-03 04:28:24,068 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:28:24,069 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 04:28:24,069 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-03 04:28:24,070 INFO L205 CegarAbsIntRunner]: [0], [4], [7], [8], [10], [11], [12], [14], [17], [19], [25], [26], [27], [29], [30], [31], [32] [2018-12-03 04:28:24,089 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 04:28:24,089 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 04:28:24,177 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 04:28:24,178 INFO L272 AbstractInterpreter]: Visited 17 different actions 42 times. Merged at 2 different actions 6 times. Never widened. Performed 94 root evaluator evaluations with a maximum evaluation depth of 4. Performed 94 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 4 fixpoints after 3 different actions. Largest state had 6 variables. [2018-12-03 04:28:24,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 04:28:24,183 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 04:28:24,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 04:28:24,183 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/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 [2018-12-03 04:28:24,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 04:28:24,189 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 04:28:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 04:28:24,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 04:28:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-03 04:28:24,304 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 04:28:31,336 WARN L180 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2018-12-03 04:28:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 04:28:31,405 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 04:28:31,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 16 [2018-12-03 04:28:31,405 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 04:28:31,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-03 04:28:31,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-03 04:28:31,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=199, Unknown=1, NotChecked=0, Total=240 [2018-12-03 04:28:31,407 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 13 states. [2018-12-03 04:28:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 04:28:31,500 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-12-03 04:28:31,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-03 04:28:31,501 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2018-12-03 04:28:31,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 04:28:31,501 INFO L225 Difference]: With dead ends: 23 [2018-12-03 04:28:31,501 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 04:28:31,502 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=82, Invalid=337, Unknown=1, NotChecked=0, Total=420 [2018-12-03 04:28:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 04:28:31,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 04:28:31,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 04:28:31,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 04:28:31,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-12-03 04:28:31,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 04:28:31,503 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 04:28:31,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-03 04:28:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 04:28:31,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 04:28:31,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 04:28:31,526 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-03 04:28:31,526 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 04:28:31,526 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 04:28:31,527 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 04:28:31,527 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 04:28:31,527 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 04:28:31,527 INFO L448 ceAbstractionStarter]: For program point sumEXIT(lines 4 10) no Hoare annotation was computed. [2018-12-03 04:28:31,527 INFO L444 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= |sum_#in~m| sum_~m)) [2018-12-03 04:28:31,527 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-12-03 04:28:31,527 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 9) no Hoare annotation was computed. [2018-12-03 04:28:31,528 INFO L448 ceAbstractionStarter]: For program point sumFINAL(lines 4 10) no Hoare annotation was computed. [2018-12-03 04:28:31,528 INFO L451 ceAbstractionStarter]: At program point sumENTRY(lines 4 10) the Hoare annotation is: true [2018-12-03 04:28:31,528 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 12 19) the Hoare annotation is: true [2018-12-03 04:28:31,528 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 12 19) no Hoare annotation was computed. [2018-12-03 04:28:31,528 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-12-03 04:28:31,528 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-12-03 04:28:31,529 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-12-03 04:28:31,529 INFO L451 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: true [2018-12-03 04:28:31,529 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-12-03 04:28:31,529 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 12 19) no Hoare annotation was computed. [2018-12-03 04:28:31,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:28:31 BoogieIcfgContainer [2018-12-03 04:28:31,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 04:28:31,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 04:28:31,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 04:28:31,532 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 04:28:31,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:28:23" (3/4) ... [2018-12-03 04:28:31,534 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 04:28:31,537 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 04:28:31,538 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2018-12-03 04:28:31,538 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 04:28:31,540 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-03 04:28:31,540 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 04:28:31,540 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 04:28:31,562 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_61b22dac-2ff7-475a-9d49-242529e6c06d/bin-2019/utaipan/witness.graphml [2018-12-03 04:28:31,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 04:28:31,563 INFO L168 Benchmark]: Toolchain (without parser) took 8310.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 955.1 MB in the beginning and 973.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 135.9 MB. Max. memory is 11.5 GB. [2018-12-03 04:28:31,563 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:28:31,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.13 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 04:28:31,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.01 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:28:31,564 INFO L168 Benchmark]: Boogie Preprocessor took 9.86 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:28:31,564 INFO L168 Benchmark]: RCFGBuilder took 132.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-03 04:28:31,564 INFO L168 Benchmark]: TraceAbstraction took 7956.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.3 MB in the end (delta: 164.8 MB). Peak memory consumption was 164.8 MB. Max. memory is 11.5 GB. [2018-12-03 04:28:31,565 INFO L168 Benchmark]: Witness Printer took 30.87 ms. Allocated memory is still 1.2 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 04:28:31,566 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 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.13 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.01 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.86 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7956.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.3 MB in the end (delta: 164.8 MB). Peak memory consumption was 164.8 MB. Max. memory is 11.5 GB. * Witness Printer took 30.87 ms. Allocated memory is still 1.2 GB. Free memory is still 973.3 MB. There was no memory consumed. 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, 7.9s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 12 SDslu, 85 SDs, 0 SdLazy, 91 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 7.2s 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, 13 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 3 QuantifiedInterpolants, 11382 SizeOfPredicates, 9 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 28 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...