./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/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 a2dbe578aaa8f4d94b72aa1723f297c002a26229 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:31:23,303 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:31:23,304 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:31:23,310 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:31:23,310 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:31:23,311 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:31:23,311 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:31:23,312 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:31:23,313 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:31:23,313 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:31:23,313 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:31:23,314 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:31:23,314 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:31:23,314 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:31:23,315 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:31:23,315 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:31:23,316 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:31:23,317 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:31:23,317 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:31:23,318 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:31:23,319 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:31:23,319 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:31:23,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:31:23,320 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:31:23,320 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:31:23,321 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:31:23,321 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:31:23,322 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:31:23,322 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:31:23,323 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:31:23,323 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:31:23,323 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:31:23,323 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:31:23,323 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:31:23,324 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:31:23,324 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:31:23,324 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:31:23,331 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:31:23,331 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:31:23,332 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:31:23,332 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:31:23,332 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:31:23,333 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:31:23,333 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:31:23,333 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:31:23,333 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:31:23,333 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:31:23,333 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:31:23,333 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:31:23,333 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:31:23,334 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:31:23,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:31:23,334 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:31:23,335 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:31:23,335 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:31:23,335 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:31:23,335 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:31:23,335 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:31:23,335 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:31:23,335 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_978eefe0-b301-48d7-8b97-83b27e3e24b6/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 -> a2dbe578aaa8f4d94b72aa1723f297c002a26229 [2018-12-09 00:31:23,352 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:31:23,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:31:23,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:31:23,362 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:31:23,362 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:31:23,362 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i [2018-12-09 00:31:23,397 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/data/7122f8410/5c995eae86b94f428850c9f75120601c/FLAG73167c03f [2018-12-09 00:31:23,820 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:31:23,820 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i [2018-12-09 00:31:23,823 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/data/7122f8410/5c995eae86b94f428850c9f75120601c/FLAG73167c03f [2018-12-09 00:31:23,831 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/data/7122f8410/5c995eae86b94f428850c9f75120601c [2018-12-09 00:31:23,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:31:23,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:31:23,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:31:23,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:31:23,836 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:31:23,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:23,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3163dfbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23, skipping insertion in model container [2018-12-09 00:31:23,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:23,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:31:23,851 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:31:23,938 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:31:23,950 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:31:23,961 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:31:23,988 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:31:23,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23 WrapperNode [2018-12-09 00:31:23,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:31:23,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:31:23,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:31:23,989 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:31:23,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:31:24,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:31:24,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:31:24,010 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:31:24,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... [2018-12-09 00:31:24,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:31:24,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:31:24,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:31:24,071 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:31:24,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:31:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 00:31:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:31:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:31:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:31:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:31:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:31:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 00:31:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:31:24,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:31:24,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 00:31:24,268 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:31:24,268 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 00:31:24,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:31:24 BoogieIcfgContainer [2018-12-09 00:31:24,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:31:24,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:31:24,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:31:24,271 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:31:24,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:31:23" (1/3) ... [2018-12-09 00:31:24,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3573e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:31:24, skipping insertion in model container [2018-12-09 00:31:24,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:31:23" (2/3) ... [2018-12-09 00:31:24,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3573e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:31:24, skipping insertion in model container [2018-12-09 00:31:24,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:31:24" (3/3) ... [2018-12-09 00:31:24,274 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c40_true-unreach-call_true-termination.i [2018-12-09 00:31:24,281 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:31:24,285 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:31:24,295 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:31:24,314 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:31:24,314 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:31:24,314 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:31:24,314 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:31:24,314 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:31:24,314 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:31:24,314 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:31:24,315 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:31:24,325 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-09 00:31:24,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 00:31:24,328 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:31:24,329 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:31:24,331 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:31:24,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:31:24,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1526440521, now seen corresponding path program 1 times [2018-12-09 00:31:24,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:31:24,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:31:24,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:31:24,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:31:24,365 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:31:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:31:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:31:24,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:31:24,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:31:24,461 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:31:24,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:31:24,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:31:24,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:31:24,473 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-12-09 00:31:24,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:31:24,483 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2018-12-09 00:31:24,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:31:24,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-12-09 00:31:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:31:24,489 INFO L225 Difference]: With dead ends: 28 [2018-12-09 00:31:24,490 INFO L226 Difference]: Without dead ends: 13 [2018-12-09 00:31:24,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:31:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-12-09 00:31:24,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-09 00:31:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-09 00:31:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-12-09 00:31:24,511 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-12-09 00:31:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:31:24,512 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-12-09 00:31:24,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:31:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-12-09 00:31:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 00:31:24,512 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:31:24,512 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:31:24,513 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:31:24,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:31:24,513 INFO L82 PathProgramCache]: Analyzing trace with hash -281053369, now seen corresponding path program 1 times [2018-12-09 00:31:24,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:31:24,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:31:24,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:31:24,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:31:24,514 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:31:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:31:24,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:31:24,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:31:24,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:31:24,559 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:31:24,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:31:24,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:31:24,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:31:24,561 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-12-09 00:31:24,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:31:24,580 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-12-09 00:31:24,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:31:24,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-12-09 00:31:24,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:31:24,581 INFO L225 Difference]: With dead ends: 20 [2018-12-09 00:31:24,581 INFO L226 Difference]: Without dead ends: 15 [2018-12-09 00:31:24,582 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:31:24,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-09 00:31:24,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-09 00:31:24,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-09 00:31:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-12-09 00:31:24,584 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-12-09 00:31:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:31:24,585 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-12-09 00:31:24,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:31:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-12-09 00:31:24,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 00:31:24,585 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:31:24,585 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:31:24,586 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:31:24,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:31:24,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1999502604, now seen corresponding path program 1 times [2018-12-09 00:31:24,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:31:24,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:31:24,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:31:24,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:31:24,587 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:31:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:31:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:31:24,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:31:24,732 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:31:24,732 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-12-09 00:31:24,733 INFO L205 CegarAbsIntRunner]: [0], [1], [5], [10], [13], [15], [19], [22], [25], [27], [37], [38], [39] [2018-12-09 00:31:24,757 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:31:24,757 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:31:24,900 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:31:24,901 INFO L272 AbstractInterpreter]: Visited 13 different actions 34 times. Merged at 7 different actions 21 times. Never widened. Performed 602 root evaluator evaluations with a maximum evaluation depth of 3. Performed 602 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 29 variables. [2018-12-09 00:31:24,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:31:24,906 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:31:24,906 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:31:24,906 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:31:24,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:31:24,913 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:31:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:31:24,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:31:25,001 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-09 00:31:25,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-09 00:31:25,003 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 00:31:25,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:31:25,016 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:31:25,016 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-12-09 00:31:25,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:31:25,022 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:31:25,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:31:25,072 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 00:31:25,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 9 [2018-12-09 00:31:25,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:31:25,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:31:25,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:31:25,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-12-09 00:31:25,073 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2018-12-09 00:31:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:31:25,090 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-12-09 00:31:25,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:31:25,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-12-09 00:31:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:31:25,090 INFO L225 Difference]: With dead ends: 15 [2018-12-09 00:31:25,091 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:31:25,091 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-12-09 00:31:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:31:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:31:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:31:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:31:25,092 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-09 00:31:25,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:31:25,092 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:31:25,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:31:25,092 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:31:25,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:31:25,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:31:25,149 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:31:25,149 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:31:25,149 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:31:25,149 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:31:25,150 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~i~0 0) (<= 0 |~#x~0.offset|) (<= |~#x~0.offset| 0) (= 0 (select (select |#memory_int| |~#x~0.base|) (+ |~#x~0.offset| ~i~0)))) [2018-12-09 00:31:25,150 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:31:25,150 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:31:25,150 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 23) no Hoare annotation was computed. [2018-12-09 00:31:25,150 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-12-09 00:31:25,150 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 23) no Hoare annotation was computed. [2018-12-09 00:31:25,150 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 8 23) the Hoare annotation is: (or (not (= 0 (select (select |old(#memory_int)| |~#x~0.base|) (+ |old(~i~0)| |~#x~0.offset|)))) (< 0 |~#x~0.offset|) (not (= 0 |old(~i~0)|)) (< |~#x~0.offset| 0) (and (= ~i~0 0) (= 0 (select (select |#memory_int| |~#x~0.base|) (+ |~#x~0.offset| ~i~0))))) [2018-12-09 00:31:25,151 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-09 00:31:25,151 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-12-09 00:31:25,151 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-12-09 00:31:25,151 INFO L448 ceAbstractionStarter]: For program point L12-1(lines 12 15) no Hoare annotation was computed. [2018-12-09 00:31:25,151 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-12-09 00:31:25,151 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 15) the Hoare annotation is: (or (not (= 0 (select (select |old(#memory_int)| |~#x~0.base|) (+ |old(~i~0)| |~#x~0.offset|)))) (< 0 |~#x~0.offset|) (not (= 0 |old(~i~0)|)) (< |~#x~0.offset| 0) (and (= ~i~0 0) (= 0 (select (select |#memory_int| |~#x~0.base|) (+ |~#x~0.offset| ~i~0))))) [2018-12-09 00:31:25,151 INFO L448 ceAbstractionStarter]: For program point L12-4(lines 12 15) no Hoare annotation was computed. [2018-12-09 00:31:25,155 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:31:25,156 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:31:25,160 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:31:25,160 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:31:25,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:31:25 BoogieIcfgContainer [2018-12-09 00:31:25,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:31:25,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:31:25,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:31:25,162 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:31:25,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:31:24" (3/4) ... [2018-12-09 00:31:25,165 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:31:25,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:31:25,169 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:31:25,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2018-12-09 00:31:25,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2018-12-09 00:31:25,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2018-12-09 00:31:25,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-09 00:31:25,173 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 00:31:25,174 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 00:31:25,174 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 00:31:25,174 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 00:31:25,191 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(unknown-#memory_int-unknown)[x][\old(i) + x]) || 0 < x) || !(0 == \old(i))) || x < 0) || (i == 0 && 0 == unknown-#memory_int-unknown[x][x + i]) [2018-12-09 00:31:25,198 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_978eefe0-b301-48d7-8b97-83b27e3e24b6/bin-2019/utaipan/witness.graphml [2018-12-09 00:31:25,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:31:25,199 INFO L168 Benchmark]: Toolchain (without parser) took 1365.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 952.4 MB in the beginning and 961.9 MB in the end (delta: -9.5 MB). Peak memory consumption was 124.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:31:25,200 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:31:25,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.09 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:31:25,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.57 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:31:25,201 INFO L168 Benchmark]: Boogie Preprocessor took 60.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:31:25,201 INFO L168 Benchmark]: RCFGBuilder took 197.85 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:31:25,201 INFO L168 Benchmark]: TraceAbstraction took 892.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.9 MB in the end (delta: 138.6 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:31:25,202 INFO L168 Benchmark]: Witness Printer took 36.37 ms. Allocated memory is still 1.2 GB. Free memory is still 961.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:31:25,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.09 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 21.57 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.85 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 892.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 961.9 MB in the end (delta: 138.6 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. * Witness Printer took 36.37 ms. Allocated memory is still 1.2 GB. Free memory is still 961.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant [2018-12-09 00:31:25,206 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:31:25,207 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:31:25,207 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 00:31:25,207 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((!(0 == \old(unknown-#memory_int-unknown)[x][\old(i) + x]) || 0 < x) || !(0 == \old(i))) || x < 0) || (i == 0 && 0 == unknown-#memory_int-unknown[x][x + i]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 9 SDslu, 11 SDs, 0 SdLazy, 8 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 93 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 3052 SizeOfPredicates, 7 NumberOfNonLiveVariables, 502 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...