./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/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 edcc597a46f9ad79563531282ca675b8b1d7c4bf ................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 18:32:58,031 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 18:32:58,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 18:32:58,038 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 18:32:58,039 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 18:32:58,039 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 18:32:58,040 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 18:32:58,041 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 18:32:58,042 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 18:32:58,043 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 18:32:58,043 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 18:32:58,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 18:32:58,044 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 18:32:58,045 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 18:32:58,045 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 18:32:58,046 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 18:32:58,046 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 18:32:58,047 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 18:32:58,048 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 18:32:58,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 18:32:58,049 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 18:32:58,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 18:32:58,051 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 18:32:58,051 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 18:32:58,051 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 18:32:58,051 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 18:32:58,052 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 18:32:58,052 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 18:32:58,052 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 18:32:58,053 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 18:32:58,053 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 18:32:58,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 18:32:58,053 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 18:32:58,054 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 18:32:58,054 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 18:32:58,054 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 18:32:58,054 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 18:32:58,063 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 18:32:58,063 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 18:32:58,064 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 18:32:58,064 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 18:32:58,064 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 18:32:58,064 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 18:32:58,064 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 18:32:58,064 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 18:32:58,065 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 18:32:58,065 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 18:32:58,065 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 18:32:58,065 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 18:32:58,065 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 18:32:58,066 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 18:32:58,066 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 18:32:58,066 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 18:32:58,066 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 18:32:58,066 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 18:32:58,066 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 18:32:58,067 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 18:32:58,067 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 18:32:58,067 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 18:32:58,067 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 18:32:58,067 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 18:32:58,067 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 18:32:58,068 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 18:32:58,068 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 18:32:58,068 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 18:32:58,068 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 18:32:58,068 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 18:32:58,068 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 18:32:58,069 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 18:32:58,069 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 18:32:58,069 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 18:32:58,069 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 18:32:58,069 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 18:32:58,069 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_cd298375-ac7a-4e23-a7dd-be424d55ff7b/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 -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2018-12-08 18:32:58,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 18:32:58,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 18:32:58,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 18:32:58,105 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 18:32:58,105 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 18:32:58,106 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/../../sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-12-08 18:32:58,144 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/data/dd079e56e/514a9fefb8d84791b520805689c94ddd/FLAGef68d80be [2018-12-08 18:32:58,452 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 18:32:58,453 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/sv-benchmarks/c/recursive/McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-12-08 18:32:58,456 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/data/dd079e56e/514a9fefb8d84791b520805689c94ddd/FLAGef68d80be [2018-12-08 18:32:58,880 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/data/dd079e56e/514a9fefb8d84791b520805689c94ddd [2018-12-08 18:32:58,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 18:32:58,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 18:32:58,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 18:32:58,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 18:32:58,889 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 18:32:58,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:32:58" (1/1) ... [2018-12-08 18:32:58,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7a2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:58, skipping insertion in model container [2018-12-08 18:32:58,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:32:58" (1/1) ... [2018-12-08 18:32:58,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 18:32:58,908 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 18:32:58,992 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:32:58,994 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 18:32:59,003 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:32:59,010 INFO L195 MainTranslator]: Completed translation [2018-12-08 18:32:59,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59 WrapperNode [2018-12-08 18:32:59,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 18:32:59,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 18:32:59,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 18:32:59,011 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 18:32:59,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 18:32:59,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 18:32:59,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 18:32:59,023 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 18:32:59,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... [2018-12-08 18:32:59,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 18:32:59,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 18:32:59,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 18:32:59,034 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 18:32:59,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/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 [2018-12-08 18:32:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 18:32:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 18:32:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 18:32:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 18:32:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 18:32:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 18:32:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2018-12-08 18:32:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2018-12-08 18:32:59,183 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 18:32:59,183 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 18:32:59,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:32:59 BoogieIcfgContainer [2018-12-08 18:32:59,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 18:32:59,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 18:32:59,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 18:32:59,186 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 18:32:59,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 06:32:58" (1/3) ... [2018-12-08 18:32:59,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7807a93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:32:59, skipping insertion in model container [2018-12-08 18:32:59,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:32:59" (2/3) ... [2018-12-08 18:32:59,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7807a93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:32:59, skipping insertion in model container [2018-12-08 18:32:59,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:32:59" (3/3) ... [2018-12-08 18:32:59,188 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91_true-unreach-call_true-no-overflow_true-termination.c [2018-12-08 18:32:59,193 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 18:32:59,197 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 18:32:59,206 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 18:32:59,222 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 18:32:59,223 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 18:32:59,223 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 18:32:59,223 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 18:32:59,223 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 18:32:59,223 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 18:32:59,223 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 18:32:59,223 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 18:32:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-12-08 18:32:59,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 18:32:59,236 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:32:59,236 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:32:59,238 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:32:59,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:32:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1590359645, now seen corresponding path program 1 times [2018-12-08 18:32:59,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:32:59,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:32:59,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:32:59,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:32:59,269 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:32:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 18:32:59,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 18:32:59,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 18:32:59,390 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 18:32:59,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 18:32:59,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 18:32:59,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 18:32:59,401 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2018-12-08 18:32:59,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:32:59,480 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-12-08 18:32:59,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 18:32:59,481 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-12-08 18:32:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:32:59,486 INFO L225 Difference]: With dead ends: 34 [2018-12-08 18:32:59,487 INFO L226 Difference]: Without dead ends: 20 [2018-12-08 18:32:59,488 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 18:32:59,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-08 18:32:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-12-08 18:32:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-08 18:32:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-12-08 18:32:59,512 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2018-12-08 18:32:59,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:32:59,513 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-12-08 18:32:59,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 18:32:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-12-08 18:32:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 18:32:59,514 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:32:59,514 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:32:59,514 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 18:32:59,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:32:59,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2121223720, now seen corresponding path program 1 times [2018-12-08 18:32:59,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 18:32:59,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:32:59,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:32:59,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:32:59,515 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 18:32:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 18:32:59,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:32:59,602 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 18:32:59,602 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2018-12-08 18:32:59,603 INFO L205 CegarAbsIntRunner]: [0], [4], [6], [10], [12], [15], [18], [19], [21], [23], [24], [25], [26], [27], [29], [30], [31], [32], [33], [34] [2018-12-08 18:32:59,622 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 18:32:59,622 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 18:32:59,769 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 18:32:59,770 INFO L272 AbstractInterpreter]: Visited 20 different actions 250 times. Never merged. Never widened. Performed 526 root evaluator evaluations with a maximum evaluation depth of 3. Performed 526 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 32 fixpoints after 3 different actions. Largest state had 5 variables. [2018-12-08 18:32:59,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:32:59,774 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 18:32:59,775 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 18:32:59,775 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/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 [2018-12-08 18:32:59,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:32:59,781 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 18:32:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 18:32:59,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 18:32:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 18:32:59,837 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 18:33:00,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 18:33:00,048 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 18:33:00,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 15 [2018-12-08 18:33:00,048 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 18:33:00,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 18:33:00,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 18:33:00,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-12-08 18:33:00,050 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 11 states. [2018-12-08 18:33:00,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 18:33:00,145 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2018-12-08 18:33:00,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 18:33:00,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-12-08 18:33:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 18:33:00,146 INFO L225 Difference]: With dead ends: 20 [2018-12-08 18:33:00,146 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 18:33:00,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2018-12-08 18:33:00,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 18:33:00,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 18:33:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 18:33:00,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 18:33:00,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-08 18:33:00,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 18:33:00,148 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 18:33:00,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 18:33:00,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 18:33:00,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 18:33:00,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 18:33:00,179 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 18:33:00,179 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 18:33:00,179 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 18:33:00,179 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 18:33:00,179 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 18:33:00,179 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 18:33:00,179 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2018-12-08 18:33:00,180 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-12-08 18:33:00,180 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 24 32) the Hoare annotation is: true [2018-12-08 18:33:00,180 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 24 32) no Hoare annotation was computed. [2018-12-08 18:33:00,180 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-12-08 18:33:00,180 INFO L451 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: true [2018-12-08 18:33:00,180 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-12-08 18:33:00,180 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 24 32) no Hoare annotation was computed. [2018-12-08 18:33:00,180 INFO L444 ceAbstractionStarter]: At program point L19-2(line 19) the Hoare annotation is: (and (<= |f91_#in~x| f91_~x) (<= f91_~x |f91_#in~x|) (<= |f91_#t~ret0| 101) (<= f91_~x 100)) [2018-12-08 18:33:00,180 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2018-12-08 18:33:00,181 INFO L448 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2018-12-08 18:33:00,181 INFO L451 ceAbstractionStarter]: At program point f91ENTRY(lines 15 21) the Hoare annotation is: true [2018-12-08 18:33:00,181 INFO L448 ceAbstractionStarter]: For program point f91FINAL(lines 15 21) no Hoare annotation was computed. [2018-12-08 18:33:00,181 INFO L444 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= |f91_#in~x| f91_~x) (<= f91_~x |f91_#in~x|) (<= f91_~x 100)) [2018-12-08 18:33:00,181 INFO L448 ceAbstractionStarter]: For program point f91EXIT(lines 15 21) no Hoare annotation was computed. [2018-12-08 18:33:00,181 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-12-08 18:33:00,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 06:33:00 BoogieIcfgContainer [2018-12-08 18:33:00,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 18:33:00,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 18:33:00,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 18:33:00,183 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 18:33:00,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:32:59" (3/4) ... [2018-12-08 18:33:00,185 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 18:33:00,189 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 18:33:00,189 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 18:33:00,190 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2018-12-08 18:33:00,192 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-08 18:33:00,192 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 18:33:00,192 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 18:33:00,218 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cd298375-ac7a-4e23-a7dd-be424d55ff7b/bin-2019/utaipan/witness.graphml [2018-12-08 18:33:00,218 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 18:33:00,219 INFO L168 Benchmark]: Toolchain (without parser) took 1335.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 949.7 MB in the beginning and 930.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 130.0 MB. Max. memory is 11.5 GB. [2018-12-08 18:33:00,220 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-08 18:33:00,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.72 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 18:33:00,220 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:33:00,220 INFO L168 Benchmark]: Boogie Preprocessor took 10.45 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:33:00,220 INFO L168 Benchmark]: RCFGBuilder took 149.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-12-08 18:33:00,221 INFO L168 Benchmark]: TraceAbstraction took 998.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 933.5 MB in the end (delta: 161.3 MB). Peak memory consumption was 161.3 MB. Max. memory is 11.5 GB. [2018-12-08 18:33:00,221 INFO L168 Benchmark]: Witness Printer took 35.30 ms. Allocated memory is still 1.1 GB. Free memory was 933.5 MB in the beginning and 930.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 18:33:00,223 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 125.72 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.72 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.45 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 998.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 933.5 MB in the end (delta: 161.3 MB). Peak memory consumption was 161.3 MB. Max. memory is 11.5 GB. * Witness Printer took 35.30 ms. Allocated memory is still 1.1 GB. Free memory was 933.5 MB in the beginning and 930.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 15 SDslu, 110 SDs, 0 SdLazy, 130 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s 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, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 29 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 7560 SizeOfPredicates, 6 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 25/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...