./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:01:19,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:01:19,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:01:19,538 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:01:19,538 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:01:19,538 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:01:19,539 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:01:19,541 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:01:19,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:01:19,542 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:01:19,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:01:19,543 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:01:19,544 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:01:19,544 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:01:19,545 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:01:19,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:01:19,546 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:01:19,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:01:19,549 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:01:19,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:01:19,551 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:01:19,552 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:01:19,554 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:01:19,554 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:01:19,554 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:01:19,555 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:01:19,555 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:01:19,556 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:01:19,556 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:01:19,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:01:19,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:01:19,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:01:19,558 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:01:19,558 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:01:19,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:01:19,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:01:19,560 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 02:01:19,570 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:01:19,570 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:01:19,570 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:01:19,571 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:01:19,571 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 02:01:19,571 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 02:01:19,572 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 02:01:19,572 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 02:01:19,572 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 02:01:19,572 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 02:01:19,572 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 02:01:19,572 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 02:01:19,572 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 02:01:19,573 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:01:19,573 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:01:19,573 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:01:19,573 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:01:19,573 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:01:19,574 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:01:19,574 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:01:19,574 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:01:19,574 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:01:19,574 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:01:19,575 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:01:19,575 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:01:19,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:01:19,576 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:01:19,576 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:01:19,576 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:01:19,576 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:01:19,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:01:19,576 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:01:19,576 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:01:19,577 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 02:01:19,577 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:01:19,577 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:01:19,577 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 02:01:19,577 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_b513f22e-58d2-43b1-8f92-3cd8cab6345e/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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2018-11-23 02:01:19,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:01:19,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:01:19,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:01:19,612 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:01:19,612 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:01:19,613 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-23 02:01:19,648 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/data/c3d6bc1c6/105d6e52a42d48559608ae8e7ef11259/FLAG909514617 [2018-11-23 02:01:19,943 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:01:19,944 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-23 02:01:19,948 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/data/c3d6bc1c6/105d6e52a42d48559608ae8e7ef11259/FLAG909514617 [2018-11-23 02:01:19,957 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/data/c3d6bc1c6/105d6e52a42d48559608ae8e7ef11259 [2018-11-23 02:01:19,959 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:01:19,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:01:19,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:01:19,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:01:19,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:01:19,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:01:19" (1/1) ... [2018-11-23 02:01:19,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d13f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:19, skipping insertion in model container [2018-11-23 02:01:19,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:01:19" (1/1) ... [2018-11-23 02:01:19,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:01:19,983 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:01:20,086 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:01:20,088 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:01:20,099 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:01:20,107 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:01:20,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20 WrapperNode [2018-11-23 02:01:20,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:01:20,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:01:20,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:01:20,108 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:01:20,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:01:20,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:01:20,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:01:20,126 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:01:20,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... [2018-11-23 02:01:20,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:01:20,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:01:20,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:01:20,142 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:01:20,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/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 [2018-11-23 02:01:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:01:20,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:01:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:01:20,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:01:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:01:20,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:01:20,331 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:01:20,332 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 02:01:20,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:20 BoogieIcfgContainer [2018-11-23 02:01:20,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:01:20,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:01:20,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:01:20,335 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:01:20,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:01:19" (1/3) ... [2018-11-23 02:01:20,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155d23e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:01:20, skipping insertion in model container [2018-11-23 02:01:20,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:01:20" (2/3) ... [2018-11-23 02:01:20,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155d23e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:01:20, skipping insertion in model container [2018-11-23 02:01:20,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:20" (3/3) ... [2018-11-23 02:01:20,338 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call.i.v+lhb-reducer.c [2018-11-23 02:01:20,344 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:01:20,350 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 02:01:20,362 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 02:01:20,388 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:01:20,388 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:01:20,388 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:01:20,388 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:01:20,388 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:01:20,388 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:01:20,388 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:01:20,388 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:01:20,403 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-23 02:01:20,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 02:01:20,408 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:01:20,409 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:01:20,410 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:01:20,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:01:20,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1077508024, now seen corresponding path program 1 times [2018-11-23 02:01:20,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:01:20,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:01:20,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:01:20,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:01:20,454 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:01:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:01:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:01:20,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:01:20,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 02:01:20,530 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:01:20,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 02:01:20,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 02:01:20,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 02:01:20,542 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2018-11-23 02:01:20,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:01:20,591 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-11-23 02:01:20,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 02:01:20,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-23 02:01:20,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:01:20,599 INFO L225 Difference]: With dead ends: 30 [2018-11-23 02:01:20,600 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 02:01:20,602 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:01:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 02:01:20,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 02:01:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 02:01:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-23 02:01:20,627 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-11-23 02:01:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:01:20,627 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-23 02:01:20,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 02:01:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-23 02:01:20,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 02:01:20,628 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:01:20,628 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:01:20,628 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:01:20,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:01:20,629 INFO L82 PathProgramCache]: Analyzing trace with hash 398186682, now seen corresponding path program 1 times [2018-11-23 02:01:20,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:01:20,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:01:20,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:01:20,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:01:20,630 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:01:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:01:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:01:20,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:01:20,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 02:01:20,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:01:20,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 02:01:20,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 02:01:20,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 02:01:20,693 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 6 states. [2018-11-23 02:01:20,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:01:20,782 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 02:01:20,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 02:01:20,783 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-23 02:01:20,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:01:20,784 INFO L225 Difference]: With dead ends: 19 [2018-11-23 02:01:20,784 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 02:01:20,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-23 02:01:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 02:01:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-23 02:01:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 02:01:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-23 02:01:20,788 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2018-11-23 02:01:20,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:01:20,788 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-23 02:01:20,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 02:01:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-23 02:01:20,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 02:01:20,788 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:01:20,788 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:01:20,789 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:01:20,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:01:20,789 INFO L82 PathProgramCache]: Analyzing trace with hash 405408254, now seen corresponding path program 1 times [2018-11-23 02:01:20,789 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 02:01:20,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:01:20,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:01:20,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:01:20,790 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 02:01:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:01:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:01:20,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:01:20,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 02:01:20,833 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 02:01:20,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 02:01:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 02:01:20,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 02:01:20,834 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 5 states. [2018-11-23 02:01:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:01:20,906 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2018-11-23 02:01:20,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 02:01:20,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 02:01:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:01:20,907 INFO L225 Difference]: With dead ends: 25 [2018-11-23 02:01:20,907 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:01:20,908 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 02:01:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:01:20,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:01:20,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:01:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:01:20,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 02:01:20,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:01:20,909 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:01:20,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 02:01:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:01:20,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:01:20,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:01:20,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 02:01:20,946 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:01:20,947 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:01:20,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:01:20,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:01:20,947 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 02:01:20,947 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:01:20,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:01:20,947 INFO L444 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= main_~__VERIFIER_assert__cond~0 1) (<= (+ main_~main__i~0 1) main_~main__nlen~0)) [2018-11-23 02:01:20,947 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 97) no Hoare annotation was computed. [2018-11-23 02:01:20,947 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 97) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 97) the Hoare annotation is: true [2018-11-23 02:01:20,948 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L448 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-11-23 02:01:20,948 INFO L444 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 main_~main__i~0) [2018-11-23 02:01:20,949 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2018-11-23 02:01:20,949 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 02:01:20,949 INFO L444 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (<= 0 main_~main__i~0) (= main_~__VERIFIER_assert__cond~0 1) (<= (+ main_~main__i~0 1) main_~main__nlen~0) (not (= 0 main_~__VERIFIER_assert__cond~1))) [2018-11-23 02:01:20,949 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2018-11-23 02:01:20,949 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-11-23 02:01:20,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:01:20 BoogieIcfgContainer [2018-11-23 02:01:20,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:01:20,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:01:20,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:01:20,958 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:01:20,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:01:20" (3/4) ... [2018-11-23 02:01:20,960 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:01:20,964 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:01:20,964 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:01:20,966 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 02:01:20,967 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 02:01:20,998 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b513f22e-58d2-43b1-8f92-3cd8cab6345e/bin-2019/utaipan/witness.graphml [2018-11-23 02:01:20,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:01:20,999 INFO L168 Benchmark]: Toolchain (without parser) took 1039.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -102.3 MB). Peak memory consumption was 43.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:01:21,000 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-23 02:01:21,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.53 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:01:21,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.46 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:01:21,001 INFO L168 Benchmark]: Boogie Preprocessor took 15.62 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:01:21,001 INFO L168 Benchmark]: RCFGBuilder took 190.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:01:21,001 INFO L168 Benchmark]: TraceAbstraction took 624.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:01:21,002 INFO L168 Benchmark]: Witness Printer took 41.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:01:21,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 147.53 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 17.46 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.62 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 190.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 624.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * Witness Printer took 41.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 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: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((0 <= main__i && __VERIFIER_assert__cond == 1) && main__i + 1 <= main__nlen) && !(0 == __VERIFIER_assert__cond) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (0 <= main__i && __VERIFIER_assert__cond == 1) && main__i + 1 <= main__nlen - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 3 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 70 SDslu, 53 SDs, 0 SdLazy, 62 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 35 HoareAnnotationTreeSize, 7 FomulaSimplifications, 128 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 1085 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...