./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i --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_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/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 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 11:08:47,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:08:47,489 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:08:47,496 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:08:47,497 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:08:47,497 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:08:47,498 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:08:47,499 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:08:47,499 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:08:47,500 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:08:47,500 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:08:47,500 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:08:47,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:08:47,501 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:08:47,502 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:08:47,502 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:08:47,503 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:08:47,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:08:47,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:08:47,505 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:08:47,505 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:08:47,506 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:08:47,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:08:47,507 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:08:47,507 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:08:47,508 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:08:47,508 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:08:47,509 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:08:47,509 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:08:47,510 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:08:47,510 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:08:47,510 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:08:47,510 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:08:47,510 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:08:47,511 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:08:47,511 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:08:47,511 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 11:08:47,518 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:08:47,518 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:08:47,519 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:08:47,519 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:08:47,519 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 11:08:47,519 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 11:08:47,519 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 11:08:47,519 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 11:08:47,519 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 11:08:47,520 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 11:08:47,520 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 11:08:47,520 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 11:08:47,520 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 11:08:47,520 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:08:47,520 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:08:47,520 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:08:47,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:08:47,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:08:47,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:08:47,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:08:47,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:08:47,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:08:47,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:08:47,522 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 11:08:47,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:08:47,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 11:08:47,522 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 11:08:47,522 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_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/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 -> 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 [2018-12-09 11:08:47,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:08:47,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:08:47,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:08:47,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:08:47,549 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:08:47,549 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-12-09 11:08:47,585 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/data/a5fba9e85/85fd7d73da0348b8b58b31a036e88f76/FLAG48be6edcb [2018-12-09 11:08:47,909 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:08:47,910 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-12-09 11:08:47,914 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/data/a5fba9e85/85fd7d73da0348b8b58b31a036e88f76/FLAG48be6edcb [2018-12-09 11:08:48,316 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/data/a5fba9e85/85fd7d73da0348b8b58b31a036e88f76 [2018-12-09 11:08:48,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:08:48,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:08:48,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:08:48,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:08:48,321 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:08:48,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b10c34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48, skipping insertion in model container [2018-12-09 11:08:48,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:08:48,342 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:08:48,436 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:08:48,438 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:08:48,447 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:08:48,455 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:08:48,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48 WrapperNode [2018-12-09 11:08:48,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:08:48,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:08:48,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:08:48,456 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:08:48,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:08:48,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:08:48,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:08:48,473 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:08:48,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... [2018-12-09 11:08:48,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:08:48,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:08:48,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:08:48,488 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:08:48,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/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 [2018-12-09 11:08:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:08:48,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:08:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:08:48,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:08:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:08:48,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:08:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 11:08:48,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 11:08:48,647 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:08:48,647 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 11:08:48,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:08:48 BoogieIcfgContainer [2018-12-09 11:08:48,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:08:48,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:08:48,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:08:48,649 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:08:48,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:08:48" (1/3) ... [2018-12-09 11:08:48,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be9a1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:08:48, skipping insertion in model container [2018-12-09 11:08:48,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:08:48" (2/3) ... [2018-12-09 11:08:48,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be9a1d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:08:48, skipping insertion in model container [2018-12-09 11:08:48,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:08:48" (3/3) ... [2018-12-09 11:08:48,651 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call_true-termination.i [2018-12-09 11:08:48,657 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:08:48,661 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:08:48,670 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:08:48,687 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:08:48,687 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:08:48,687 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:08:48,687 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:08:48,687 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:08:48,687 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:08:48,687 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:08:48,687 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:08:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-12-09 11:08:48,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 11:08:48,699 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:08:48,700 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:08:48,701 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:08:48,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:08:48,704 INFO L82 PathProgramCache]: Analyzing trace with hash -741608086, now seen corresponding path program 1 times [2018-12-09 11:08:48,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:08:48,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:08:48,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:08:48,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:08:48,734 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:08:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:08:48,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:08:48,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:08:48,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 11:08:48,799 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:08:48,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 11:08:48,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 11:08:48,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 11:08:48,811 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2018-12-09 11:08:48,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:08:48,858 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2018-12-09 11:08:48,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 11:08:48,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-12-09 11:08:48,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:08:48,864 INFO L225 Difference]: With dead ends: 43 [2018-12-09 11:08:48,864 INFO L226 Difference]: Without dead ends: 21 [2018-12-09 11:08:48,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 11:08:48,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-09 11:08:48,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-09 11:08:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-09 11:08:48,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-09 11:08:48,890 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2018-12-09 11:08:48,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:08:48,890 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-09 11:08:48,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 11:08:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-09 11:08:48,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 11:08:48,891 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:08:48,891 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:08:48,891 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:08:48,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:08:48,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1356428647, now seen corresponding path program 1 times [2018-12-09 11:08:48,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:08:48,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:08:48,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:08:48,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:08:48,892 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:08:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:08:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:08:48,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:08:48,941 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 11:08:48,942 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-12-09 11:08:48,943 INFO L205 CegarAbsIntRunner]: [0], [4], [12], [20], [34], [37], [39], [42], [44], [45], [46], [47], [49], [50], [51] [2018-12-09 11:08:48,962 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 11:08:48,963 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 11:08:49,033 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 11:08:49,034 INFO L272 AbstractInterpreter]: Visited 15 different actions 20 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 5. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Never found a fixpoint. Largest state had 6 variables. [2018-12-09 11:08:49,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:08:49,038 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 11:08:49,038 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 11:08:49,038 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/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 [2018-12-09 11:08:49,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:08:49,045 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 11:08:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:08:49,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:08:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:08:49,098 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 11:08:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:08:49,135 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 11:08:49,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 9 [2018-12-09 11:08:49,135 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:08:49,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 11:08:49,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 11:08:49,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-09 11:08:49,136 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2018-12-09 11:08:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:08:49,155 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-12-09 11:08:49,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 11:08:49,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-12-09 11:08:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:08:49,156 INFO L225 Difference]: With dead ends: 21 [2018-12-09 11:08:49,156 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 11:08:49,157 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-09 11:08:49,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 11:08:49,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 11:08:49,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 11:08:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 11:08:49,157 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-12-09 11:08:49,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:08:49,157 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 11:08:49,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 11:08:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 11:08:49,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 11:08:49,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 11:08:49,186 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 11:08:49,186 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:08:49,186 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:08:49,186 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 11:08:49,186 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 11:08:49,186 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 11:08:49,186 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-12-09 11:08:49,186 INFO L444 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-12-09 11:08:49,186 INFO L444 ceAbstractionStarter]: At program point L15-1(line 15) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-12-09 11:08:49,186 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-12-09 11:08:49,186 INFO L448 ceAbstractionStarter]: For program point L13-2(lines 13 18) no Hoare annotation was computed. [2018-12-09 11:08:49,186 INFO L444 ceAbstractionStarter]: At program point L13-3(lines 13 18) the Hoare annotation is: (<= 0 main_~i~0) [2018-12-09 11:08:49,187 INFO L448 ceAbstractionStarter]: For program point L13-4(lines 13 18) no Hoare annotation was computed. [2018-12-09 11:08:49,187 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-12-09 11:08:49,187 INFO L448 ceAbstractionStarter]: For program point L16(lines 14 17) no Hoare annotation was computed. [2018-12-09 11:08:49,187 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-12-09 11:08:49,187 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-09 11:08:49,187 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-09 11:08:49,187 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-09 11:08:49,187 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-09 11:08:49,187 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-09 11:08:49,187 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-09 11:08:49,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:08:49 BoogieIcfgContainer [2018-12-09 11:08:49,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:08:49,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:08:49,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:08:49,195 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:08:49,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:08:48" (3/4) ... [2018-12-09 11:08:49,197 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 11:08:49,200 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 11:08:49,200 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 11:08:49,200 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 11:08:49,203 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 11:08:49,203 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 11:08:49,203 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 11:08:49,228 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_eb4cc4e6-1cc5-4ed1-91b4-c17e4ec4c623/bin-2019/utaipan/witness.graphml [2018-12-09 11:08:49,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:08:49,229 INFO L168 Benchmark]: Toolchain (without parser) took 910.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 948.6 MB in the beginning and 1.0 GB in the end (delta: -65.8 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-12-09 11:08:49,229 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:08:49,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.24 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:08:49,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.89 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:08:49,230 INFO L168 Benchmark]: Boogie Preprocessor took 14.98 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:08:49,230 INFO L168 Benchmark]: RCFGBuilder took 159.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:08:49,231 INFO L168 Benchmark]: TraceAbstraction took 546.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 11.5 GB. [2018-12-09 11:08:49,231 INFO L168 Benchmark]: Witness Printer took 33.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:08:49,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.24 ms. Allocated memory is still 1.0 GB. Free memory was 948.6 MB in the beginning and 937.9 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 16.89 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.98 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 159.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 546.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.0 MB). Peak memory consumption was 69.0 MB. Max. memory is 11.5 GB. * Witness Printer took 33.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB 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: 5]: 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 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 <= i && i + 1 <= nlen - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 14 SDslu, 84 SDs, 0 SdLazy, 35 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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, 9 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 35 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 1795 SizeOfPredicates, 2 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...