./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/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 f6e8a3a31f477f95b41c919de6810cac9ea0df78 ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/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 f6e8a3a31f477f95b41c919de6810cac9ea0df78 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:28:13,322 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:28:13,323 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:28:13,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:28:13,337 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:28:13,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:28:13,339 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:28:13,340 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:28:13,342 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:28:13,343 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:28:13,344 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:28:13,344 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:28:13,345 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:28:13,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:28:13,347 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:28:13,348 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:28:13,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:28:13,351 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:28:13,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:28:13,354 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:28:13,355 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:28:13,356 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:28:13,358 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:28:13,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:28:13,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:28:13,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:28:13,360 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:28:13,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:28:13,363 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:28:13,364 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:28:13,364 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:28:13,365 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:28:13,365 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:28:13,365 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:28:13,367 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:28:13,367 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:28:13,368 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:28:13,385 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:28:13,385 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:28:13,394 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:28:13,394 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:28:13,394 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:28:13,395 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:28:13,395 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:28:13,395 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:28:13,395 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:28:13,395 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:28:13,395 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:28:13,396 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:28:13,396 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:28:13,396 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:28:13,397 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:28:13,397 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:28:13,397 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:28:13,397 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:28:13,397 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:28:13,397 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:28:13,398 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:28:13,398 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:28:13,398 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:28:13,398 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:28:13,398 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:28:13,398 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:28:13,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:28:13,399 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:28:13,399 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:28:13,399 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:28:13,399 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:28:13,399 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:28:13,399 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:28:13,400 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:28:13,400 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_061e394f-1979-4243-9217-fe5da593faa5/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 -> f6e8a3a31f477f95b41c919de6810cac9ea0df78 [2018-10-26 21:28:13,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:28:13,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:28:13,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:28:13,459 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:28:13,460 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:28:13,460 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-10-26 21:28:13,525 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/4affb57e8/871518be8dcf48dba14c2eff670d216e/FLAG757a9bd06 [2018-10-26 21:28:13,876 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:28:13,877 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-10-26 21:28:13,887 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/4affb57e8/871518be8dcf48dba14c2eff670d216e/FLAG757a9bd06 [2018-10-26 21:28:13,902 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/4affb57e8/871518be8dcf48dba14c2eff670d216e [2018-10-26 21:28:13,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:28:13,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:28:13,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:28:13,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:28:13,911 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:28:13,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:28:13" (1/1) ... [2018-10-26 21:28:13,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e4eb0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:13, skipping insertion in model container [2018-10-26 21:28:13,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:28:13" (1/1) ... [2018-10-26 21:28:13,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:28:13,946 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:28:14,100 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:28:14,104 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:28:14,136 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:28:14,155 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:28:14,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14 WrapperNode [2018-10-26 21:28:14,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:28:14,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:28:14,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:28:14,156 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:28:14,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:28:14,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:28:14,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:28:14,209 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:28:14,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... [2018-10-26 21:28:14,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:28:14,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:28:14,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:28:14,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:28:14,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/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 [2018-10-26 21:28:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:28:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:28:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:28:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:28:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:28:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:28:15,261 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:28:15,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:28:15 BoogieIcfgContainer [2018-10-26 21:28:15,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:28:15,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:28:15,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:28:15,267 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:28:15,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:28:13" (1/3) ... [2018-10-26 21:28:15,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8372702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:28:15, skipping insertion in model container [2018-10-26 21:28:15,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:14" (2/3) ... [2018-10-26 21:28:15,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8372702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:28:15, skipping insertion in model container [2018-10-26 21:28:15,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:28:15" (3/3) ... [2018-10-26 21:28:15,272 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-10-26 21:28:15,282 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:28:15,290 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:28:15,307 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:28:15,339 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:28:15,339 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:28:15,339 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:28:15,339 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:28:15,339 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:28:15,340 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:28:15,340 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:28:15,341 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:28:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-10-26 21:28:15,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:28:15,365 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:28:15,366 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:28:15,369 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:28:15,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:28:15,375 INFO L82 PathProgramCache]: Analyzing trace with hash -938213152, now seen corresponding path program 1 times [2018-10-26 21:28:15,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:28:15,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:28:15,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:28:15,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:28:15,427 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:28:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:28:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:28:15,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:28:15,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:28:15,712 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:28:15,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:28:15,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:28:15,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:28:15,735 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2018-10-26 21:28:16,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:28:16,088 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2018-10-26 21:28:16,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 21:28:16,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-10-26 21:28:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:28:16,099 INFO L225 Difference]: With dead ends: 44 [2018-10-26 21:28:16,100 INFO L226 Difference]: Without dead ends: 26 [2018-10-26 21:28:16,102 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-26 21:28:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-26 21:28:16,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-10-26 21:28:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-26 21:28:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-10-26 21:28:16,132 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2018-10-26 21:28:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:28:16,133 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-10-26 21:28:16,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:28:16,133 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-10-26 21:28:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:28:16,133 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:28:16,134 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:28:16,134 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:28:16,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:28:16,134 INFO L82 PathProgramCache]: Analyzing trace with hash -923109115, now seen corresponding path program 1 times [2018-10-26 21:28:16,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:28:16,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:28:16,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:28:16,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:28:16,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:28:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:28:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:28:16,218 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 21:28:16,238 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,239 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,240 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,241 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,242 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,242 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,243 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,243 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,245 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,248 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,252 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,252 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,253 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,253 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,253 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,254 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,254 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,255 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,255 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,255 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,256 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,256 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,256 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,257 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 21:28:16,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:28:16 BoogieIcfgContainer [2018-10-26 21:28:16,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:28:16,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:28:16,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:28:16,288 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:28:16,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:28:15" (3/4) ... [2018-10-26 21:28:16,293 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 21:28:16,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:28:16,295 INFO L168 Benchmark]: Toolchain (without parser) took 2390.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -120.6 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:28:16,297 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:28:16,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 939.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:28:16,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.69 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 936.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:28:16,302 INFO L168 Benchmark]: Boogie Preprocessor took 35.45 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 933.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:28:16,303 INFO L168 Benchmark]: RCFGBuilder took 1017.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:28:16,304 INFO L168 Benchmark]: TraceAbstraction took 1024.57 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-10-26 21:28:16,305 INFO L168 Benchmark]: Witness Printer took 6.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:28:16,308 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 939.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.69 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 936.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.45 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 933.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1017.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -183.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1024.57 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 48]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 29, overapproximation of someBinaryDOUBLEComparisonOperation at line 35, overapproximation of to_real at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 33. Possible FailurePath: [L1] int __return_main; [L7] int __return_136; VAL [\old(__return_136)=34, \old(__return_main)=46, __return_136=0, __return_main=0] [L10] int main__i; [L11] float main__z; [L12] float main__t; [L13] CALL float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L14] CALL float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L15] CALL float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L16] CALL float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L17] main__t = __VERIFIER_nondet_float() [L18] int main____CPAchecker_TMP_0; [L19] CALL, EXPR main__min[0] [L19] RET, EXPR main__min[0] [L19] COND TRUE main__t >= (main__min[0]) [L21] CALL, EXPR main__max[4UL] [L21] RET, EXPR main__max[4UL] [L21] COND TRUE main__t <= (main__max[4UL]) [L23] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L24] COND TRUE main____CPAchecker_TMP_0 != 0 [L26] main__i = 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L27] COND TRUE main__i < 5UL [L29] CALL, EXPR main__max[main__i] [L29] RET, EXPR main__max[main__i] [L29] COND TRUE main__t <= (main__max[main__i]) [L33] CALL, EXPR main__org[main__i] [L33] RET, EXPR main__org[main__i] [L33] CALL, EXPR main__slope[main__i] [L33] RET, EXPR main__slope[main__i] [L33] CALL, EXPR main__min[main__i] [L33] RET, EXPR main__min[main__i] [L33] CALL, EXPR main__max[main__i] [L33] RET, EXPR main__max[main__i] [L33] CALL, EXPR main__min[main__i] [L33] RET, EXPR main__min[main__i] [L33] main__z = (main__org[main__i]) + (((main__slope[main__i]) * (main__t - (main__min[main__i]))) / ((main__max[main__i]) - (main__min[main__i]))) [L34] int main____CPAchecker_TMP_1; VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L35] COND FALSE !(main__z >= -10.0) VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L61] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L42] int __tmp_1; [L43] __tmp_1 = main____CPAchecker_TMP_1 [L44] int __VERIFIER_assert__cond; [L45] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L46] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L48] __VERIFIER_error() VAL [\old(__return_136)=0, __return_136=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 37 SDslu, 93 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:28:18,340 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:28:18,341 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:28:18,351 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:28:18,351 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:28:18,352 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:28:18,353 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:28:18,354 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:28:18,356 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:28:18,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:28:18,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:28:18,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:28:18,358 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:28:18,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:28:18,360 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:28:18,360 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:28:18,361 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:28:18,362 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:28:18,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:28:18,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:28:18,366 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:28:18,367 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:28:18,369 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:28:18,369 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:28:18,369 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:28:18,370 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:28:18,371 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:28:18,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:28:18,372 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:28:18,373 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:28:18,373 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:28:18,374 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:28:18,374 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:28:18,374 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:28:18,375 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:28:18,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:28:18,376 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 21:28:18,389 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:28:18,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:28:18,393 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:28:18,394 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:28:18,394 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:28:18,394 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:28:18,394 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:28:18,394 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:28:18,395 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:28:18,395 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:28:18,395 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:28:18,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:28:18,396 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:28:18,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:28:18,396 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:28:18,396 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 21:28:18,396 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 21:28:18,396 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:28:18,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:28:18,397 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:28:18,397 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:28:18,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:28:18,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:28:18,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:28:18,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:28:18,398 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:28:18,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:28:18,399 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:28:18,399 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 21:28:18,399 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:28:18,399 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 21:28:18,399 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 21:28:18,399 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_061e394f-1979-4243-9217-fe5da593faa5/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 -> f6e8a3a31f477f95b41c919de6810cac9ea0df78 [2018-10-26 21:28:18,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:28:18,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:28:18,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:28:18,464 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:28:18,464 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:28:18,465 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-10-26 21:28:18,529 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/29a63f05b/1dd48389c92a470fa297c2bc7c540e6b/FLAG37e9dfa2e [2018-10-26 21:28:18,931 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:28:18,932 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-10-26 21:28:18,937 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/29a63f05b/1dd48389c92a470fa297c2bc7c540e6b/FLAG37e9dfa2e [2018-10-26 21:28:18,948 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/data/29a63f05b/1dd48389c92a470fa297c2bc7c540e6b [2018-10-26 21:28:18,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:28:18,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:28:18,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:28:18,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:28:18,959 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:28:18,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:28:18" (1/1) ... [2018-10-26 21:28:18,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ec404ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:18, skipping insertion in model container [2018-10-26 21:28:18,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:28:18" (1/1) ... [2018-10-26 21:28:18,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:28:18,993 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:28:19,169 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:28:19,181 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:28:19,223 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:28:19,243 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:28:19,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19 WrapperNode [2018-10-26 21:28:19,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:28:19,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:28:19,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:28:19,244 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:28:19,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:28:19,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:28:19,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:28:19,300 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:28:19,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... [2018-10-26 21:28:19,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:28:19,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:28:19,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:28:19,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:28:19,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/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 [2018-10-26 21:28:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:28:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:28:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:28:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:28:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:28:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:28:20,248 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 21:28:23,058 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:28:23,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:28:23 BoogieIcfgContainer [2018-10-26 21:28:23,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:28:23,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:28:23,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:28:23,063 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:28:23,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:28:18" (1/3) ... [2018-10-26 21:28:23,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fc1f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:28:23, skipping insertion in model container [2018-10-26 21:28:23,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:28:19" (2/3) ... [2018-10-26 21:28:23,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fc1f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:28:23, skipping insertion in model container [2018-10-26 21:28:23,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:28:23" (3/3) ... [2018-10-26 21:28:23,067 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-10-26 21:28:23,076 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:28:23,084 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:28:23,097 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:28:23,119 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:28:23,119 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:28:23,120 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:28:23,120 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:28:23,120 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:28:23,120 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:28:23,120 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:28:23,120 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:28:23,120 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:28:23,138 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-10-26 21:28:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:28:23,144 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:28:23,145 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:28:23,148 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:28:23,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:28:23,153 INFO L82 PathProgramCache]: Analyzing trace with hash -938213152, now seen corresponding path program 1 times [2018-10-26 21:28:23,158 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 21:28:23,158 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 21:28:23,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:28:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:28:23,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:28:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:28:23,810 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 21:28:23,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:28:23,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:28:23,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:28:23,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:28:23,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:28:23,861 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-10-26 21:28:26,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:28:26,307 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2018-10-26 21:28:26,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:28:26,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-10-26 21:28:26,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:28:26,319 INFO L225 Difference]: With dead ends: 40 [2018-10-26 21:28:26,320 INFO L226 Difference]: Without dead ends: 26 [2018-10-26 21:28:26,323 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:28:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-26 21:28:26,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-10-26 21:28:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-26 21:28:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-10-26 21:28:26,361 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2018-10-26 21:28:26,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:28:26,362 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-10-26 21:28:26,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:28:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-10-26 21:28:26,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 21:28:26,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:28:26,363 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:28:26,364 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:28:26,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:28:26,364 INFO L82 PathProgramCache]: Analyzing trace with hash -923109115, now seen corresponding path program 1 times [2018-10-26 21:28:26,365 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 21:28:26,365 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_061e394f-1979-4243-9217-fe5da593faa5/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 21:28:26,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:28:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:28:27,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:28:51,306 WARN L179 SmtUtils]: Spent 23.74 s on a formula simplification. DAG size of input: 172 DAG size of output: 148 [2018-10-26 21:28:51,942 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:28:51,943 INFO L303 Elim1Store]: Index analysis took 610 ms [2018-10-26 21:28:51,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 40 [2018-10-26 21:28:52,875 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:28:52,876 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 21:28:52,878 INFO L303 Elim1Store]: Index analysis took 880 ms [2018-10-26 21:28:52,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2018-10-26 21:28:53,868 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:28:54,051 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:28:54,996 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:28:55,517 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:28:55,518 INFO L303 Elim1Store]: Index analysis took 2555 ms [2018-10-26 21:28:55,520 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2018-10-26 21:28:55,521 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-26 21:29:01,126 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:29:05,584 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:29:33,164 INFO L303 Elim1Store]: Index analysis took 2932 ms [2018-10-26 21:29:33,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 232 [2018-10-26 21:29:44,218 WARN L179 SmtUtils]: Spent 11.05 s on a formula simplification that was a NOOP. DAG size: 102 [2018-10-26 21:29:44,412 INFO L303 Elim1Store]: Index analysis took 192 ms [2018-10-26 21:29:44,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 28 treesize of output 31 [2018-10-26 21:29:44,819 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:45,114 INFO L303 Elim1Store]: Index analysis took 699 ms [2018-10-26 21:29:45,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39 [2018-10-26 21:29:45,427 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:45,746 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:45,924 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:46,917 INFO L303 Elim1Store]: Index analysis took 1797 ms [2018-10-26 21:29:46,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 55 [2018-10-26 21:29:47,378 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:47,633 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:47,750 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:47,938 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:48,194 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:48,369 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:50,865 INFO L303 Elim1Store]: Index analysis took 3940 ms [2018-10-26 21:29:50,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 79 [2018-10-26 21:29:51,212 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:51,353 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:51,461 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:51,549 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:51,822 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:52,063 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:52,188 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:52,396 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:52,658 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:52,943 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:29:56,762 INFO L303 Elim1Store]: Index analysis took 5887 ms [2018-10-26 21:29:56,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 116 [2018-10-26 21:29:56,766 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-10-26 21:30:02,183 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:05,256 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:07,948 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:10,932 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:18,823 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:18,825 INFO L303 Elim1Store]: Index analysis took 2930 ms [2018-10-26 21:30:18,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 200 [2018-10-26 21:30:33,877 WARN L179 SmtUtils]: Spent 15.05 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2018-10-26 21:30:33,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 58 treesize of output 57 [2018-10-26 21:30:34,026 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:34,090 INFO L303 Elim1Store]: Index analysis took 127 ms [2018-10-26 21:30:34,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 60 [2018-10-26 21:30:34,282 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:34,337 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:34,412 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:34,812 INFO L303 Elim1Store]: Index analysis took 717 ms [2018-10-26 21:30:34,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 71 [2018-10-26 21:30:35,003 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:35,074 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:35,130 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:35,209 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:35,285 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:35,363 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,000 INFO L303 Elim1Store]: Index analysis took 1181 ms [2018-10-26 21:30:36,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 90 [2018-10-26 21:30:36,178 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,249 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,307 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,361 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,420 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,496 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,538 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,583 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,699 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:36,763 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:37,950 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:37,952 INFO L303 Elim1Store]: Index analysis took 1942 ms [2018-10-26 21:30:37,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 132 [2018-10-26 21:30:37,954 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-10-26 21:30:39,537 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:40,454 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:41,328 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:42,054 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:45,037 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:45,115 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:45,470 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:45,472 INFO L303 Elim1Store]: Index analysis took 1367 ms [2018-10-26 21:30:45,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 236 [2018-10-26 21:30:45,519 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 87 treesize of output 83 [2018-10-26 21:30:45,563 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:45,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 81 [2018-10-26 21:30:45,733 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:45,804 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:45,872 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:46,281 INFO L303 Elim1Store]: Index analysis took 682 ms [2018-10-26 21:30:46,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 87 [2018-10-26 21:30:46,421 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:46,481 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:46,554 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:46,613 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:46,665 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:46,722 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,451 INFO L303 Elim1Store]: Index analysis took 1163 ms [2018-10-26 21:30:47,452 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 101 [2018-10-26 21:30:47,563 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,596 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,643 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,698 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,758 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,804 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,842 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,901 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,947 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:47,999 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:48,946 INFO L303 Elim1Store]: Index analysis took 1487 ms [2018-10-26 21:30:48,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 132 [2018-10-26 21:30:48,948 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-10-26 21:30:50,048 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:50,622 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:51,167 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:51,685 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:53,377 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:53,524 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:53,576 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:53,719 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:53,775 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:53,986 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:53,988 INFO L303 Elim1Store]: Index analysis took 710 ms [2018-10-26 21:30:53,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 293 [2018-10-26 21:30:54,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 116 treesize of output 109 [2018-10-26 21:30:54,167 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,278 INFO L303 Elim1Store]: Index analysis took 211 ms [2018-10-26 21:30:54,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 102 [2018-10-26 21:30:54,355 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,397 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,410 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,511 INFO L303 Elim1Store]: Index analysis took 227 ms [2018-10-26 21:30:54,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 103 [2018-10-26 21:30:54,662 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,714 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,750 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,809 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,863 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:54,916 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,588 INFO L303 Elim1Store]: Index analysis took 1050 ms [2018-10-26 21:30:55,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 112 [2018-10-26 21:30:55,619 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,625 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,630 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,636 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,642 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,648 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,653 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,659 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,665 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,670 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,735 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:55,766 INFO L303 Elim1Store]: Index analysis took 171 ms [2018-10-26 21:30:55,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 148 [2018-10-26 21:30:55,769 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-10-26 21:30:55,929 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:56,000 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:56,073 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:56,151 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:56,403 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:56,590 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:56,781 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:56,971 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:57,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 20 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 21:30:57,479 INFO L202 ElimStorePlain]: Needed 28 recursive calls to eliminate 22 variables, input treesize:556, output treesize:184 [2018-10-26 21:30:58,453 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-10-26 21:30:59,422 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,457 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,492 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,526 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,561 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,596 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,634 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,670 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,705 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,741 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,776 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,812 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 21:30:59,846 INFO L303 Elim1Store]: Index analysis took 1384 ms [2018-10-26 21:30:59,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 259 [2018-10-26 21:31:01,758 INFO L303 Elim1Store]: Index analysis took 1906 ms [2018-10-26 21:31:07,448 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 153 [2018-10-26 21:31:07,449 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-10-26 21:31:07,562 INFO L267 ElimStorePlain]: Start of recursive call 3: 195 dim-0 vars, End of recursive call: 195 dim-0 vars, and 54 xjuncts. [2018-10-26 21:36:04,236 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-10-26 21:36:04,437 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-10-26 21:36:04,437 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:258) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 47 more [2018-10-26 21:36:04,441 INFO L168 Benchmark]: Toolchain (without parser) took 465489.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 950.6 MB in the beginning and 914.4 MB in the end (delta: 36.2 MB). Peak memory consumption was 227.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:36:04,442 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:36:04,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.70 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:36:04,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.74 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:36:04,444 INFO L168 Benchmark]: Boogie Preprocessor took 46.04 ms. Allocated memory is still 1.0 GB. Free memory was 934.4 MB in the beginning and 929.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:36:04,444 INFO L168 Benchmark]: RCFGBuilder took 3712.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 929.1 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:36:04,445 INFO L168 Benchmark]: TraceAbstraction took 461380.05 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 914.4 MB in the end (delta: 154.1 MB). Peak memory consumption was 210.2 MB. Max. memory is 11.5 GB. [2018-10-26 21:36:04,451 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.70 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.74 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.04 ms. Allocated memory is still 1.0 GB. Free memory was 934.4 MB in the beginning and 929.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3712.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 929.1 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 461380.05 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 914.4 MB in the end (delta: 154.1 MB). Peak memory consumption was 210.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...