./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.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_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/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 03f3c06db3ef41593c24334f9583c5e77016ee88 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/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 03f3c06db3ef41593c24334f9583c5e77016ee88 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:27:20,459 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:27:20,461 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:27:20,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:27:20,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:27:20,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:27:20,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:27:20,473 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:27:20,474 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:27:20,475 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:27:20,476 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:27:20,476 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:27:20,477 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:27:20,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:27:20,479 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:27:20,479 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:27:20,480 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:27:20,481 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:27:20,483 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:27:20,484 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:27:20,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:27:20,485 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:27:20,487 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:27:20,488 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:27:20,488 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:27:20,489 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:27:20,489 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:27:20,490 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:27:20,490 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:27:20,491 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:27:20,491 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:27:20,492 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:27:20,492 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:27:20,492 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:27:20,493 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:27:20,493 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:27:20,494 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:27:20,507 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:27:20,507 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:27:20,508 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:27:20,508 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:27:20,508 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:27:20,508 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:27:20,509 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:27:20,509 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:27:20,509 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:27:20,509 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:27:20,509 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:27:20,510 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:27:20,515 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:27:20,515 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:27:20,515 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:27:20,515 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:27:20,515 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:27:20,516 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:27:20,516 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:27:20,516 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:27:20,516 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:27:20,516 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:27:20,516 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:27:20,516 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:27:20,517 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:27:20,517 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:27:20,517 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:27:20,517 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:27:20,517 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:27:20,517 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:27:20,517 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:27:20,518 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:27:20,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:27:20,518 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:27:20,518 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_6110bcc0-4562-4612-904d-76669152c80a/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-10-26 22:27:20,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:27:20,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:27:20,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:27:20,573 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:27:20,573 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:27:20,574 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-10-26 22:27:20,622 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/b6c3da6b0/13e97b84e4ca43d384f67fdcb339c30d/FLAGe5b3c3ffa [2018-10-26 22:27:20,995 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:27:20,996 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-10-26 22:27:21,003 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/b6c3da6b0/13e97b84e4ca43d384f67fdcb339c30d/FLAGe5b3c3ffa [2018-10-26 22:27:21,013 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/b6c3da6b0/13e97b84e4ca43d384f67fdcb339c30d [2018-10-26 22:27:21,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:27:21,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:27:21,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:27:21,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:27:21,023 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:27:21,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a464bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21, skipping insertion in model container [2018-10-26 22:27:21,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:27:21,053 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:27:21,195 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:27:21,200 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:27:21,230 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:27:21,247 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:27:21,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21 WrapperNode [2018-10-26 22:27:21,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:27:21,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:27:21,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:27:21,249 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:27:21,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:27:21,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:27:21,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:27:21,295 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:27:21,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... [2018-10-26 22:27:21,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:27:21,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:27:21,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:27:21,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:27:21,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/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 22:27:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-10-26 22:27:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-10-26 22:27:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:27:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:27:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:27:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:27:21,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:27:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:27:21,512 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 22:27:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 22:27:22,285 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:27:22,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:27:22 BoogieIcfgContainer [2018-10-26 22:27:22,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:27:22,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:27:22,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:27:22,289 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:27:22,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:27:21" (1/3) ... [2018-10-26 22:27:22,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c668dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:27:22, skipping insertion in model container [2018-10-26 22:27:22,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:21" (2/3) ... [2018-10-26 22:27:22,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c668dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:27:22, skipping insertion in model container [2018-10-26 22:27:22,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:27:22" (3/3) ... [2018-10-26 22:27:22,292 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-10-26 22:27:22,299 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:27:22,305 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:27:22,314 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:27:22,338 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:27:22,338 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:27:22,339 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:27:22,339 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:27:22,339 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:27:22,339 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:27:22,339 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:27:22,339 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:27:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-26 22:27:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 22:27:22,360 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:27:22,360 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 22:27:22,362 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:27:22,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:27:22,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1135660596, now seen corresponding path program 1 times [2018-10-26 22:27:22,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:27:22,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:27:22,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:27:22,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:27:22,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:27:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:27:22,508 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 22:27:22,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:27:22,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:27:22,511 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 22:27:22,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:27:22,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:27:22,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:27:22,533 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-10-26 22:27:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:27:22,555 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-10-26 22:27:22,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:27:22,556 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-10-26 22:27:22,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:27:22,565 INFO L225 Difference]: With dead ends: 100 [2018-10-26 22:27:22,565 INFO L226 Difference]: Without dead ends: 50 [2018-10-26 22:27:22,568 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:27:22,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-26 22:27:22,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-10-26 22:27:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:27:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-10-26 22:27:22,597 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-10-26 22:27:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:27:22,597 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-10-26 22:27:22,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:27:22,598 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-10-26 22:27:22,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:27:22,598 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:27:22,599 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:27:22,599 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:27:22,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:27:22,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1312726988, now seen corresponding path program 1 times [2018-10-26 22:27:22,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:27:22,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:27:22,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:27:22,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:27:22,601 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:27:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:27:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:27:22,714 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 22:27:22,730 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,736 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,737 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,737 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,741 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,742 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,742 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,746 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:27:22,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,749 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:27:22,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:27:22 BoogieIcfgContainer [2018-10-26 22:27:22,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:27:22,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:27:22,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:27:22,771 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:27:22,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:27:22" (3/4) ... [2018-10-26 22:27:22,776 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 22:27:22,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:27:22,776 INFO L168 Benchmark]: Toolchain (without parser) took 1760.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -127.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-10-26 22:27:22,778 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:27:22,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.46 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 939.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-10-26 22:27:22,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.03 ms. Allocated memory is still 1.0 GB. Free memory was 939.5 MB in the beginning and 936.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:27:22,780 INFO L168 Benchmark]: Boogie Preprocessor took 154.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 936.8 MB in the beginning and 1.2 GB in the end (delta: -219.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-10-26 22:27:22,780 INFO L168 Benchmark]: RCFGBuilder took 836.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-10-26 22:27:22,781 INFO L168 Benchmark]: TraceAbstraction took 483.92 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:27:22,781 INFO L168 Benchmark]: Witness Printer took 4.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:27:22,786 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.46 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 939.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.03 ms. Allocated memory is still 1.0 GB. Free memory was 939.5 MB in the beginning and 936.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 154.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 936.8 MB in the beginning and 1.2 GB in the end (delta: -219.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 836.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 483.92 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. 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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ 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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ 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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ 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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ 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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ 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: 131]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 130, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 47. Possible FailurePath: [L12-L31] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L12-L31] RET static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(halF_exp)=6442450972, \old(halF_exp)=6442450953, \old(huge_exp)=6442450962, \old(invln2_exp)=6442450947, \old(ln2HI_exp)=6442450969, \old(ln2HI_exp)=6442450945, \old(ln2LO_exp)=6442450955, \old(ln2LO_exp)=6442450971, \old(one_exp)=6442450960, \old(P1_exp)=6442450952, \old(P2_exp)=6442450954, \old(P3_exp)=6442450956, \old(P4_exp)=6442450959, \old(P5_exp)=6442450958, \old(twom100_exp)=6442450946, halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L126] float x = -1.0f / 0.0f; VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L127] CALL, EXPR __ieee754_expf(x) VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L34] float y, hi, lo, c, t; [L35] __int32_t k = 0, xsb, sx; [L36] __uint32_t hx; VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L39] CALL ieee_float_shape_type gf_u; [L39] RET ieee_float_shape_type gf_u; [L40] CALL gf_u.value = (x) [L40] RET gf_u.value = (x) [L41] CALL, EXPR gf_u.word [L41] RET, EXPR gf_u.word [L41] (sx) = gf_u.word [L41] RET (sx) = gf_u.word [L42] COND FALSE !(0) VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L43] xsb = (sx >> 31) & 1 [L44] hx = sx & 0x7fffffff VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L46] COND TRUE ((hx) > 0x7f800000L) [L47] RET return x + x; VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L127] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=6442450963, halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L127] float res = __ieee754_expf(x); [L130] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450963, res == 0.0f && __signbit_float(res) == 0=0, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] [L130] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L131] __VERIFIER_error() VAL [halF_exp={6442450950:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450949:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450963, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450964] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 22:27:24,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:27:24,618 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:27:24,627 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:27:24,627 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:27:24,628 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:27:24,629 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:27:24,630 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:27:24,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:27:24,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:27:24,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:27:24,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:27:24,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:27:24,634 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:27:24,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:27:24,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:27:24,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:27:24,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:27:24,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:27:24,641 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:27:24,641 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:27:24,642 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:27:24,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:27:24,644 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:27:24,644 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:27:24,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:27:24,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:27:24,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:27:24,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:27:24,647 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:27:24,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:27:24,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:27:24,648 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:27:24,648 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:27:24,649 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:27:24,650 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:27:24,650 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 22:27:24,660 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:27:24,661 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:27:24,661 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:27:24,662 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:27:24,662 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:27:24,662 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:27:24,662 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:27:24,662 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:27:24,663 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:27:24,663 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:27:24,663 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:27:24,663 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:27:24,663 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:27:24,663 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:27:24,664 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:27:24,664 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:27:24,664 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:27:24,664 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:27:24,664 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:27:24,664 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:27:24,665 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:27:24,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:27:24,665 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:27:24,665 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:27:24,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:27:24,665 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:27:24,665 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:27:24,666 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:27:24,666 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 22:27:24,666 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:27:24,666 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:27:24,666 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:27:24,666 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_6110bcc0-4562-4612-904d-76669152c80a/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 -> 03f3c06db3ef41593c24334f9583c5e77016ee88 [2018-10-26 22:27:24,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:27:24,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:27:24,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:27:24,724 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:27:24,725 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:27:24,726 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-10-26 22:27:24,775 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/8a4b00720/d616fcf5414f48f78544fac12759f19c/FLAG28498afd8 [2018-10-26 22:27:25,159 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:27:25,160 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/sv-benchmarks/c/float-newlib/float_req_bl_0833_true-unreach-call.c [2018-10-26 22:27:25,165 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/8a4b00720/d616fcf5414f48f78544fac12759f19c/FLAG28498afd8 [2018-10-26 22:27:25,177 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/data/8a4b00720/d616fcf5414f48f78544fac12759f19c [2018-10-26 22:27:25,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:27:25,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:27:25,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:27:25,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:27:25,185 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:27:25,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd1e471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25, skipping insertion in model container [2018-10-26 22:27:25,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:27:25,220 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:27:25,420 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:27:25,426 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:27:25,476 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:27:25,501 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:27:25,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25 WrapperNode [2018-10-26 22:27:25,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:27:25,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:27:25,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:27:25,504 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:27:25,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:27:25,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:27:25,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:27:25,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:27:25,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... [2018-10-26 22:27:25,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:27:25,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:27:25,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:27:25,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:27:25,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/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 22:27:25,780 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-10-26 22:27:25,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-10-26 22:27:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:27:25,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:27:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:27:25,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:27:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:27:25,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:27:25,781 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 22:27:25,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 22:27:25,990 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:27:34,346 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:27:34,431 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:27:34,621 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:27:34,695 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:27:34,728 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:27:34,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:27:34 BoogieIcfgContainer [2018-10-26 22:27:34,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:27:34,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:27:34,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:27:34,732 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:27:34,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:27:25" (1/3) ... [2018-10-26 22:27:34,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b744aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:27:34, skipping insertion in model container [2018-10-26 22:27:34,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:27:25" (2/3) ... [2018-10-26 22:27:34,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b744aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:27:34, skipping insertion in model container [2018-10-26 22:27:34,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:27:34" (3/3) ... [2018-10-26 22:27:34,737 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833_true-unreach-call.c [2018-10-26 22:27:34,745 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:27:34,752 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:27:34,764 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:27:34,790 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:27:34,790 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:27:34,791 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:27:34,791 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:27:34,791 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:27:34,791 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:27:34,791 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:27:34,791 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:27:34,791 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:27:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-26 22:27:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 22:27:34,814 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:27:34,815 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 22:27:34,817 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:27:34,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:27:34,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1135660596, now seen corresponding path program 1 times [2018-10-26 22:27:34,826 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:27:34,826 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 22:27:34,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 22:27:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:27:34,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:27:34,996 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 22:27:34,996 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:27:35,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:27:35,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:27:35,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:27:35,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:27:35,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:27:35,026 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-10-26 22:27:35,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:27:35,045 INFO L93 Difference]: Finished difference Result 100 states and 149 transitions. [2018-10-26 22:27:35,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:27:35,047 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-10-26 22:27:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:27:35,057 INFO L225 Difference]: With dead ends: 100 [2018-10-26 22:27:35,057 INFO L226 Difference]: Without dead ends: 50 [2018-10-26 22:27:35,060 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:27:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-26 22:27:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-10-26 22:27:35,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:27:35,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-10-26 22:27:35,093 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 17 [2018-10-26 22:27:35,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:27:35,094 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-10-26 22:27:35,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:27:35,095 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-10-26 22:27:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:27:35,095 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:27:35,096 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:27:35,096 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:27:35,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:27:35,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1312726988, now seen corresponding path program 1 times [2018-10-26 22:27:35,097 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:27:35,097 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/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 22:27:35,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:27:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:27:35,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:27:35,429 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 22:27:35,429 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:27:35,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:27:35,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:27:35,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:27:35,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:27:35,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:27:35,444 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-10-26 22:27:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:27:45,318 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2018-10-26 22:27:45,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:27:45,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-10-26 22:27:45,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:27:45,376 INFO L225 Difference]: With dead ends: 70 [2018-10-26 22:27:45,376 INFO L226 Difference]: Without dead ends: 55 [2018-10-26 22:27:45,377 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:27:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-26 22:27:45,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-10-26 22:27:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:27:45,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2018-10-26 22:27:45,381 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 18 [2018-10-26 22:27:45,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:27:45,382 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2018-10-26 22:27:45,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:27:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2018-10-26 22:27:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 22:27:45,384 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:27:45,384 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:27:45,384 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:27:45,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:27:45,393 INFO L82 PathProgramCache]: Analyzing trace with hash -910530344, now seen corresponding path program 1 times [2018-10-26 22:27:45,393 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:27:45,393 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-26 22:27:45,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:27:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:27:45,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:27:45,681 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 22:27:45,681 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:27:45,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:27:45,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:27:45,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:27:45,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:27:45,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:27:45,694 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2018-10-26 22:27:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:27:55,055 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2018-10-26 22:27:55,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:27:55,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-26 22:27:55,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:27:55,115 INFO L225 Difference]: With dead ends: 70 [2018-10-26 22:27:55,115 INFO L226 Difference]: Without dead ends: 55 [2018-10-26 22:27:55,116 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:27:55,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-26 22:27:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-10-26 22:27:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:27:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2018-10-26 22:27:55,122 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 20 [2018-10-26 22:27:55,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:27:55,123 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2018-10-26 22:27:55,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:27:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2018-10-26 22:27:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 22:27:55,124 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:27:55,124 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:27:55,124 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:27:55,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:27:55,125 INFO L82 PathProgramCache]: Analyzing trace with hash 167665934, now seen corresponding path program 1 times [2018-10-26 22:27:55,125 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:27:55,125 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-26 22:27:55,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:27:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:27:55,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:27:55,343 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 22:27:55,343 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:27:55,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:27:55,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:27:55,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:27:55,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:27:55,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:27:55,360 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand 7 states. [2018-10-26 22:28:04,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:04,641 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2018-10-26 22:28:04,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:28:04,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-10-26 22:28:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:04,699 INFO L225 Difference]: With dead ends: 71 [2018-10-26 22:28:04,699 INFO L226 Difference]: Without dead ends: 55 [2018-10-26 22:28:04,700 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:28:04,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-10-26 22:28:04,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2018-10-26 22:28:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:28:04,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-10-26 22:28:04,705 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 21 [2018-10-26 22:28:04,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:04,705 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-10-26 22:28:04,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:28:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-10-26 22:28:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 22:28:04,706 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:04,707 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:04,707 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:04,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:04,707 INFO L82 PathProgramCache]: Analyzing trace with hash -641680692, now seen corresponding path program 1 times [2018-10-26 22:28:04,707 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:28:04,708 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 22:28:04,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:04,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:04,960 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 22:28:04,960 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:28:04,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:04,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:28:04,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:28:04,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:28:04,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:28:04,969 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 6 states. [2018-10-26 22:28:07,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:07,004 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-10-26 22:28:07,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:28:07,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-26 22:28:07,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:07,005 INFO L225 Difference]: With dead ends: 57 [2018-10-26 22:28:07,005 INFO L226 Difference]: Without dead ends: 54 [2018-10-26 22:28:07,005 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:28:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-10-26 22:28:07,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-10-26 22:28:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-10-26 22:28:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-10-26 22:28:07,010 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 21 [2018-10-26 22:28:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:07,010 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-10-26 22:28:07,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:28:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-10-26 22:28:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:28:07,011 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:07,011 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:07,011 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:07,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:07,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1302413278, now seen corresponding path program 1 times [2018-10-26 22:28:07,012 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:28:07,012 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-26 22:28:07,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:07,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:07,897 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 22:28:07,897 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:28:07,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:07,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:28:07,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:28:07,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:28:07,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:28:07,915 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 7 states. [2018-10-26 22:28:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:18,442 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2018-10-26 22:28:18,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:28:18,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-10-26 22:28:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:18,508 INFO L225 Difference]: With dead ends: 84 [2018-10-26 22:28:18,508 INFO L226 Difference]: Without dead ends: 52 [2018-10-26 22:28:18,508 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:28:18,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-10-26 22:28:18,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-10-26 22:28:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-26 22:28:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-10-26 22:28:18,512 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 25 [2018-10-26 22:28:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:18,513 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-10-26 22:28:18,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:28:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-10-26 22:28:18,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 22:28:18,513 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:18,516 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:18,516 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:18,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:18,517 INFO L82 PathProgramCache]: Analyzing trace with hash -274089247, now seen corresponding path program 1 times [2018-10-26 22:28:18,517 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:28:18,517 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-10-26 22:28:18,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:19,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:19,641 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 22:28:19,641 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:28:19,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:19,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 22:28:19,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:28:19,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:28:19,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:28:19,659 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 7 states. [2018-10-26 22:28:27,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:27,281 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2018-10-26 22:28:27,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:28:27,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-10-26 22:28:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:27,345 INFO L225 Difference]: With dead ends: 63 [2018-10-26 22:28:27,345 INFO L226 Difference]: Without dead ends: 30 [2018-10-26 22:28:27,346 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-26 22:28:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-10-26 22:28:27,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-10-26 22:28:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-26 22:28:27,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2018-10-26 22:28:27,349 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 26 [2018-10-26 22:28:27,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:27,349 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2018-10-26 22:28:27,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:28:27,350 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2018-10-26 22:28:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-26 22:28:27,352 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:27,352 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:27,352 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:27,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:27,353 INFO L82 PathProgramCache]: Analyzing trace with hash -431671307, now seen corresponding path program 1 times [2018-10-26 22:28:27,353 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:28:27,353 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-10-26 22:28:27,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:27,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:27,652 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 22:28:27,652 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:28:27,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:27,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-26 22:28:27,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-26 22:28:27,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-26 22:28:27,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:28:27,661 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 11 states. [2018-10-26 22:28:27,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:27,957 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-10-26 22:28:27,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:28:27,958 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2018-10-26 22:28:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:27,959 INFO L225 Difference]: With dead ends: 30 [2018-10-26 22:28:27,959 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:28:27,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-10-26 22:28:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:28:27,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:28:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:28:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:28:27,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-10-26 22:28:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:27,960 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:28:27,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-26 22:28:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:28:27,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:28:27,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:28:28,113 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-10-26 22:28:28,113 INFO L425 ceAbstractionStarter]: For program point L94-1(lines 94 98) no Hoare annotation was computed. [2018-10-26 22:28:28,113 INFO L421 ceAbstractionStarter]: At program point L94-3(lines 94 98) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-10-26 22:28:28,113 INFO L425 ceAbstractionStarter]: For program point L86(lines 86 90) no Hoare annotation was computed. [2018-10-26 22:28:28,113 INFO L425 ceAbstractionStarter]: For program point L86-2(lines 79 92) no Hoare annotation was computed. [2018-10-26 22:28:28,113 INFO L425 ceAbstractionStarter]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2018-10-26 22:28:28,113 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 33 106) no Hoare annotation was computed. [2018-10-26 22:28:28,113 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 105) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L421 ceAbstractionStarter]: At program point L38-3(lines 38 42) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L38-4(lines 38 42) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L428 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 33 106) the Hoare annotation is: true [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 70) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 33 106) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 65) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L56-2(lines 56 65) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 49) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 81 85) no Hoare annotation was computed. [2018-10-26 22:28:28,114 INFO L421 ceAbstractionStarter]: At program point L81-3(lines 81 85) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|))) [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L49-2(line 49) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 103) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L99-2(lines 92 105) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 51) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L67(lines 67 70) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L67-2(lines 55 70) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 69) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:28:28,115 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:28:28,116 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 22:28:28,116 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:28:28,116 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:28:28,116 INFO L421 ceAbstractionStarter]: At program point L130-1(line 130) the Hoare annotation is: (and (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) main_~res~0) (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) |main_#t~short20|) [2018-10-26 22:28:28,116 INFO L425 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2018-10-26 22:28:28,116 INFO L421 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-10-26 22:28:28,116 INFO L425 ceAbstractionStarter]: For program point L127-1(line 127) no Hoare annotation was computed. [2018-10-26 22:28:28,116 INFO L425 ceAbstractionStarter]: For program point L130-4(lines 130 133) no Hoare annotation was computed. [2018-10-26 22:28:28,116 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 120 136) the Hoare annotation is: true [2018-10-26 22:28:28,116 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 120 136) no Hoare annotation was computed. [2018-10-26 22:28:28,116 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2018-10-26 22:28:28,116 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 120 136) no Hoare annotation was computed. [2018-10-26 22:28:28,117 INFO L425 ceAbstractionStarter]: For program point L131(line 131) no Hoare annotation was computed. [2018-10-26 22:28:28,117 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-10-26 22:28:28,117 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 108 118) no Hoare annotation was computed. [2018-10-26 22:28:28,117 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 108 118) the Hoare annotation is: true [2018-10-26 22:28:28,117 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2018-10-26 22:28:28,117 INFO L421 ceAbstractionStarter]: At program point L111-3(lines 111 115) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-10-26 22:28:28,117 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 108 118) no Hoare annotation was computed. [2018-10-26 22:28:28,117 INFO L425 ceAbstractionStarter]: For program point L111-4(lines 111 115) no Hoare annotation was computed. [2018-10-26 22:28:28,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,132 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,132 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,132 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,132 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,133 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,133 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,133 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,133 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,134 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,134 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,134 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,134 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:28:28 BoogieIcfgContainer [2018-10-26 22:28:28,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:28:28,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:28:28,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:28:28,137 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:28:28,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:27:34" (3/4) ... [2018-10-26 22:28:28,144 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:28:28,150 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-10-26 22:28:28,150 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:28:28,150 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:28:28,151 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-26 22:28:28,159 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 126 nodes and edges [2018-10-26 22:28:28,159 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2018-10-26 22:28:28,159 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-10-26 22:28:28,160 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 22:28:28,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 22:28:28,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 22:28:28,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-10-26 22:28:28,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-10-26 22:28:28,239 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6110bcc0-4562-4612-904d-76669152c80a/bin-2019/utaipan/witness.graphml [2018-10-26 22:28:28,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:28:28,240 INFO L168 Benchmark]: Toolchain (without parser) took 63059.05 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 237.0 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -234.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2018-10-26 22:28:28,240 INFO L168 Benchmark]: CDTParser took 0.18 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 22:28:28,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.22 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:28:28,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.67 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:28:28,241 INFO L168 Benchmark]: Boogie Preprocessor took 67.22 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:28:28,241 INFO L168 Benchmark]: RCFGBuilder took 9083.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:28:28,242 INFO L168 Benchmark]: TraceAbstraction took 53407.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -74.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:28:28,244 INFO L168 Benchmark]: Witness Printer took 102.27 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-10-26 22:28:28,246 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.22 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 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 73.67 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.22 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 9083.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53407.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -74.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 102.27 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 131]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 81]: Loop Invariant [2018-10-26 22:28:28,249 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,249 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,249 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,250 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,260 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,260 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,260 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,260 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 94]: Loop Invariant [2018-10-26 22:28:28,260 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,260 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,261 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,261 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,261 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,261 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,261 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 22:28:28,261 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 53.3s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 49.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 339 SDslu, 1233 SDs, 0 SdLazy, 319 SolverSat, 6 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 46.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 29 NumberOfFragments, 75 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 169 ConstructedInterpolants, 37 QuantifiedInterpolants, 23662 SizeOfPredicates, 51 NumberOfNonLiveVariables, 1145 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...