./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 ....................................................................................................................................................................................................................................................................................................................................... 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_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:57:19,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:57:19,489 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:57:19,498 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:57:19,498 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:57:19,503 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:57:19,504 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:57:19,505 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:57:19,506 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:57:19,507 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:57:19,507 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:57:19,508 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:57:19,508 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:57:19,509 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:57:19,510 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:57:19,510 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:57:19,515 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:57:19,516 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:57:19,517 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:57:19,518 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:57:19,519 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:57:19,520 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:57:19,521 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:57:19,522 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:57:19,522 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:57:19,522 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:57:19,523 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:57:19,524 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:57:19,524 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:57:19,525 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:57:19,525 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:57:19,526 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:57:19,526 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:57:19,526 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:57:19,527 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:57:19,527 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:57:19,527 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:57:19,537 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:57:19,537 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:57:19,538 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:57:19,538 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:57:19,538 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:57:19,538 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:57:19,538 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:57:19,539 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:57:19,539 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:57:19,539 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:57:19,539 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:57:19,539 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:57:19,539 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:57:19,540 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:57:19,541 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:57:19,541 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:57:19,541 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:57:19,541 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:57:19,541 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:57:19,541 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:57:19,541 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:57:19,542 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:57:19,542 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:57:19,542 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:57:19,542 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:57:19,542 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:57:19,542 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:57:19,542 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:57:19,543 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:57:19,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:57:19,543 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:57:19,543 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:57:19,543 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:57:19,543 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:57:19,543 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:57:19,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:57:19,544 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:57:19,544 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_28808db2-97d7-4852-a595-d4831c320ce1/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-11-18 12:57:19,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:57:19,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:57:19,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:57:19,578 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:57:19,578 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:57:19,578 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-11-18 12:57:19,614 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/4984f0a4b/7843c730fe6243388ff8d0e076e6b346/FLAGa74c6cf25 [2018-11-18 12:57:20,012 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:57:20,013 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-11-18 12:57:20,017 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/4984f0a4b/7843c730fe6243388ff8d0e076e6b346/FLAGa74c6cf25 [2018-11-18 12:57:20,025 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/4984f0a4b/7843c730fe6243388ff8d0e076e6b346 [2018-11-18 12:57:20,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:57:20,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:57:20,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:57:20,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:57:20,031 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:57:20,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efa4a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20, skipping insertion in model container [2018-11-18 12:57:20,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:57:20,055 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:57:20,185 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:57:20,191 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:57:20,215 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:57:20,273 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:57:20,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20 WrapperNode [2018-11-18 12:57:20,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:57:20,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:57:20,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:57:20,274 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:57:20,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:57:20,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:57:20,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:57:20,295 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:57:20,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... [2018-11-18 12:57:20,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:57:20,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:57:20,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:57:20,328 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:57:20,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:57:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-18 12:57:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-18 12:57:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:57:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:57:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 12:57:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:57:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:57:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:57:20,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:57:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:57:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:57:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:57:20,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:57:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:57:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:57:20,621 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:57:20,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:57:20 BoogieIcfgContainer [2018-11-18 12:57:20,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:57:20,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:57:20,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:57:20,625 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:57:20,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:57:20" (1/3) ... [2018-11-18 12:57:20,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497dfc44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:57:20, skipping insertion in model container [2018-11-18 12:57:20,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:20" (2/3) ... [2018-11-18 12:57:20,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497dfc44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:57:20, skipping insertion in model container [2018-11-18 12:57:20,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:57:20" (3/3) ... [2018-11-18 12:57:20,628 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-11-18 12:57:20,634 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:57:20,640 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:57:20,649 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:57:20,670 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:57:20,670 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:57:20,670 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:57:20,670 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:57:20,670 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:57:20,670 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:57:20,670 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:57:20,670 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:57:20,682 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-18 12:57:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:57:20,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:57:20,689 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:57:20,691 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:57:20,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:57:20,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1894497446, now seen corresponding path program 1 times [2018-11-18 12:57:20,698 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:57:20,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:57:20,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:57:20,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:57:20,736 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:57:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:57:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:57:20,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:57:20,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:57:20,832 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:57:20,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:57:20,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:57:20,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:57:20,845 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-18 12:57:20,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:57:20,858 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-11-18 12:57:20,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:57:20,860 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-18 12:57:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:57:20,866 INFO L225 Difference]: With dead ends: 82 [2018-11-18 12:57:20,866 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:57:20,869 INFO L604 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 [2018-11-18 12:57:20,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:57:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:57:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:57:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-18 12:57:20,895 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-11-18 12:57:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:57:20,896 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-18 12:57:20,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:57:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-18 12:57:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:57:20,897 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:57:20,897 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:57:20,897 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:57:20,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:57:20,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1238667486, now seen corresponding path program 1 times [2018-11-18 12:57:20,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:57:20,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:57:20,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:57:20,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:57:20,899 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:57:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:57:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:57:20,970 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:57:20,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:57:20 BoogieIcfgContainer [2018-11-18 12:57:20,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:57:20,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:57:20,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:57:20,996 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:57:20,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:57:20" (3/4) ... [2018-11-18 12:57:20,999 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:57:21,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:57:21,000 INFO L168 Benchmark]: Toolchain (without parser) took 972.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -111.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:57:21,002 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:57:21,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:57:21,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.83 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. [2018-11-18 12:57:21,004 INFO L168 Benchmark]: Boogie Preprocessor took 32.66 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:57:21,004 INFO L168 Benchmark]: RCFGBuilder took 294.36 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:57:21,004 INFO L168 Benchmark]: TraceAbstraction took 372.51 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:57:21,005 INFO L168 Benchmark]: Witness Printer took 4.25 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. [2018-11-18 12:57:21,008 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.83 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. * Boogie Preprocessor took 32.66 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 294.36 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 372.51 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] 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)=6442450951, \old(halF_exp)=6442450971, \old(huge_exp)=6442450964, \old(invln2_exp)=6442450947, \old(ln2HI_exp)=6442450945, \old(ln2HI_exp)=6442450969, \old(ln2LO_exp)=6442450954, \old(ln2LO_exp)=6442450970, \old(one_exp)=6442450959, \old(P1_exp)=6442450950, \old(P2_exp)=6442450952, \old(P3_exp)=6442450956, \old(P4_exp)=6442450958, \old(P5_exp)=6442450957, \old(twom100_exp)=6442450946, halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = -0.0f; VAL [halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=6442450965, halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [\old(x)=6442450965, halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450965] [L42] FCALL ieee_float_shape_type gf_u; [L43] FCALL gf_u.value = (x) [L44] EXPR, FCALL gf_u.word [L44] (sx) = gf_u.word [L45] COND FALSE !(0) VAL [\old(x)=6442450965, halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450965] [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [\old(x)=6442450965, halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450965] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] RET return x + x; VAL [\old(x)=6442450965, halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=-2147483648, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450965] [L118] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=6442450963, halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450965] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450963, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450965] [L122] __VERIFIER_error() VAL [halF_exp={6442450949:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6442450968:0}, ln2LO_exp={6442450955:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=6442450963, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=6442450965] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 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=45occurred 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, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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 0.1.23-5842f4b [2018-11-18 12:57:22,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:57:22,463 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:57:22,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:57:22,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:57:22,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:57:22,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:57:22,473 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:57:22,474 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:57:22,475 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:57:22,476 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:57:22,476 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:57:22,477 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:57:22,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:57:22,478 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:57:22,479 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:57:22,480 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:57:22,481 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:57:22,483 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:57:22,484 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:57:22,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:57:22,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:57:22,488 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:57:22,488 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:57:22,488 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:57:22,489 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:57:22,490 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:57:22,490 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:57:22,491 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:57:22,492 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:57:22,492 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:57:22,493 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:57:22,493 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:57:22,493 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:57:22,494 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:57:22,494 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:57:22,494 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:57:22,506 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:57:22,506 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:57:22,507 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:57:22,507 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:57:22,507 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:57:22,507 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:57:22,508 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:57:22,508 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:57:22,508 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:57:22,508 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:57:22,508 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:57:22,508 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:57:22,509 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:57:22,509 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:57:22,509 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:57:22,509 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:57:22,509 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:57:22,509 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:57:22,509 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:57:22,510 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:57:22,510 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:57:22,510 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:57:22,510 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:57:22,510 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:57:22,510 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:57:22,512 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:57:22,512 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:57:22,512 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:57:22,512 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:57:22,512 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:57:22,512 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:57:22,513 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:57:22,513 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:57:22,513 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:57:22,513 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:57:22,513 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_28808db2-97d7-4852-a595-d4831c320ce1/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-11-18 12:57:22,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:57:22,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:57:22,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:57:22,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:57:22,553 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:57:22,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-11-18 12:57:22,592 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/7e38a84eb/602a22ac0341475a9ec92843058ecd09/FLAG4ce070b7c [2018-11-18 12:57:23,001 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:57:23,001 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-11-18 12:57:23,005 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/7e38a84eb/602a22ac0341475a9ec92843058ecd09/FLAG4ce070b7c [2018-11-18 12:57:23,014 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/data/7e38a84eb/602a22ac0341475a9ec92843058ecd09 [2018-11-18 12:57:23,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:57:23,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:57:23,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:57:23,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:57:23,020 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:57:23,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268030c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23, skipping insertion in model container [2018-11-18 12:57:23,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:57:23,052 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:57:23,207 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:57:23,214 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:57:23,245 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:57:23,263 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:57:23,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23 WrapperNode [2018-11-18 12:57:23,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:57:23,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:57:23,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:57:23,264 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:57:23,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:57:23,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:57:23,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:57:23,323 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:57:23,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... [2018-11-18 12:57:23,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:57:23,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:57:23,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:57:23,358 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:57:23,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:57:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-11-18 12:57:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-11-18 12:57:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:57:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:57:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 12:57:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:57:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:57:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:57:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:57:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 12:57:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:57:23,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:57:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 12:57:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:57:23,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:57:23,514 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:57:31,910 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:57:31,937 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:57:32,030 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:57:32,044 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:57:32,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:57:32 BoogieIcfgContainer [2018-11-18 12:57:32,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:57:32,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:57:32,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:57:32,048 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:57:32,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:57:23" (1/3) ... [2018-11-18 12:57:32,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f890cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:57:32, skipping insertion in model container [2018-11-18 12:57:32,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:57:23" (2/3) ... [2018-11-18 12:57:32,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f890cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:57:32, skipping insertion in model container [2018-11-18 12:57:32,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:57:32" (3/3) ... [2018-11-18 12:57:32,051 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-11-18 12:57:32,058 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:57:32,063 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:57:32,072 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:57:32,090 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:57:32,090 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:57:32,090 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:57:32,091 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:57:32,091 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:57:32,091 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:57:32,091 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:57:32,091 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:57:32,091 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:57:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-18 12:57:32,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:57:32,105 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:57:32,105 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:57:32,107 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:57:32,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:57:32,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1894497446, now seen corresponding path program 1 times [2018-11-18 12:57:32,113 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:57:32,113 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 12:57:32,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:57:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:57:32,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:57:32,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:57:32,228 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:57:32,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:57:32,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:57:32,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:57:32,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:57:32,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:57:32,252 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-18 12:57:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:57:32,267 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-11-18 12:57:32,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:57:32,268 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-18 12:57:32,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:57:32,276 INFO L225 Difference]: With dead ends: 82 [2018-11-18 12:57:32,276 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:57:32,279 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:57:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:57:32,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:57:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:57:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-18 12:57:32,307 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-11-18 12:57:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:57:32,308 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-18 12:57:32,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:57:32,308 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-18 12:57:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:57:32,308 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:57:32,308 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:57:32,309 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:57:32,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:57:32,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1238667486, now seen corresponding path program 1 times [2018-11-18 12:57:32,309 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:57:32,310 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 [2018-11-18 12:57:32,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:57:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:57:32,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:57:32,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:57:32,494 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:57:32,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:57:32,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:57:32,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:57:32,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:57:32,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:57:32,508 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-11-18 12:57:42,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:57:42,172 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-18 12:57:42,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:57:42,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-18 12:57:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:57:42,236 INFO L225 Difference]: With dead ends: 52 [2018-11-18 12:57:42,236 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 12:57:42,237 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:57:42,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 12:57:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-11-18 12:57:42,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:57:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-11-18 12:57:42,242 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 17 [2018-11-18 12:57:42,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:57:42,242 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-11-18 12:57:42,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:57:42,243 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-11-18 12:57:42,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 12:57:42,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:57:42,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:57:42,244 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:57:42,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:57:42,244 INFO L82 PathProgramCache]: Analyzing trace with hash -805933126, now seen corresponding path program 1 times [2018-11-18 12:57:42,244 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:57:42,244 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 [2018-11-18 12:57:42,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:57:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:57:42,355 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:57:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:57:42,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:57:42,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:57:42,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:57:42,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:57:42,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:57:42,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:57:42,410 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-11-18 12:57:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:57:54,133 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-11-18 12:57:54,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:57:54,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 12:57:54,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:57:54,195 INFO L225 Difference]: With dead ends: 50 [2018-11-18 12:57:54,196 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 12:57:54,196 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:57:54,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 12:57:54,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-11-18 12:57:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:57:54,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-18 12:57:54,201 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 19 [2018-11-18 12:57:54,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:57:54,201 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-18 12:57:54,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:57:54,201 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-18 12:57:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:57:54,202 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:57:54,202 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] [2018-11-18 12:57:54,202 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:57:54,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:57:54,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1463319260, now seen corresponding path program 1 times [2018-11-18 12:57:54,202 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:57:54,203 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 [2018-11-18 12:57:54,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:57:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:57:54,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:57:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:57:54,358 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:57:54,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:57:54,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:57:54,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:57:54,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:57:54,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:57:54,373 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-11-18 12:58:04,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:58:04,142 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2018-11-18 12:58:04,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:58:04,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 12:58:04,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:58:04,207 INFO L225 Difference]: With dead ends: 50 [2018-11-18 12:58:04,207 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 12:58:04,208 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:58:04,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 12:58:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-11-18 12:58:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:58:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-11-18 12:58:04,212 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 20 [2018-11-18 12:58:04,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:58:04,212 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-11-18 12:58:04,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:58:04,212 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-11-18 12:58:04,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:58:04,213 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:58:04,213 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] [2018-11-18 12:58:04,213 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:58:04,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:58:04,213 INFO L82 PathProgramCache]: Analyzing trace with hash -779106723, now seen corresponding path program 1 times [2018-11-18 12:58:04,213 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:58:04,213 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 [2018-11-18 12:58:04,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:58:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:58:04,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:58:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:58:04,389 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:58:04,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:58:04,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:58:04,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:58:04,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:58:04,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:58:04,404 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 7 states. [2018-11-18 12:58:14,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:58:14,619 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2018-11-18 12:58:14,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:58:14,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 12:58:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:58:14,621 INFO L225 Difference]: With dead ends: 50 [2018-11-18 12:58:14,621 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 12:58:14,622 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:58:14,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 12:58:14,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-11-18 12:58:14,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:58:14,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-11-18 12:58:14,626 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 20 [2018-11-18 12:58:14,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:58:14,627 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-18 12:58:14,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:58:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-18 12:58:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:58:14,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:58:14,628 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] [2018-11-18 12:58:14,628 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:58:14,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:58:14,629 INFO L82 PathProgramCache]: Analyzing trace with hash 794830730, now seen corresponding path program 1 times [2018-11-18 12:58:14,629 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:58:14,629 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 [2018-11-18 12:58:14,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:58:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:58:14,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:58:15,378 WARN L180 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 12:58:15,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:58:15,562 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:58:15,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:58:15,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 12:58:15,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 12:58:15,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:58:15,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:58:15,572 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2018-11-18 12:58:19,379 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 12:58:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:58:25,996 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-11-18 12:58:25,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:58:25,996 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-18 12:58:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:58:25,997 INFO L225 Difference]: With dead ends: 48 [2018-11-18 12:58:25,997 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 12:58:25,997 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:58:25,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 12:58:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-11-18 12:58:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:58:26,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-11-18 12:58:26,002 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 23 [2018-11-18 12:58:26,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:58:26,002 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-11-18 12:58:26,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 12:58:26,002 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-11-18 12:58:26,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:58:26,003 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:58:26,003 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] [2018-11-18 12:58:26,003 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:58:26,003 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:58:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash -800072816, now seen corresponding path program 1 times [2018-11-18 12:58:26,004 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:58:26,004 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 [2018-11-18 12:58:26,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:58:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:58:26,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:58:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:58:26,857 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:58:26,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:58:26,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:58:26,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:58:26,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:58:26,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:58:26,873 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 7 states. [2018-11-18 12:58:40,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:58:40,010 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-11-18 12:58:40,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:58:40,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 12:58:40,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:58:40,080 INFO L225 Difference]: With dead ends: 61 [2018-11-18 12:58:40,080 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:58:40,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:58:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:58:40,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-11-18 12:58:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:58:40,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-11-18 12:58:40,084 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 24 [2018-11-18 12:58:40,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:58:40,084 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-11-18 12:58:40,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:58:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-11-18 12:58:40,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:58:40,085 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:58:40,085 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] [2018-11-18 12:58:40,085 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:58:40,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:58:40,085 INFO L82 PathProgramCache]: Analyzing trace with hash 499020678, now seen corresponding path program 1 times [2018-11-18 12:58:40,086 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:58:40,086 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/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 [2018-11-18 12:58:40,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:58:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:58:40,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:58:41,798 WARN L180 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-18 12:58:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:58:41,803 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:58:41,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:58:41,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:58:41,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:58:41,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:58:41,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:58:41,820 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2018-11-18 12:58:45,274 WARN L180 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-18 12:58:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:58:51,993 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-11-18 12:58:51,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:58:51,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 12:58:51,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:58:51,995 INFO L225 Difference]: With dead ends: 47 [2018-11-18 12:58:51,995 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:58:51,996 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:58:51,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:58:52,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:58:52,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:58:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-18 12:58:52,002 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 25 [2018-11-18 12:58:52,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:58:52,002 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-18 12:58:52,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:58:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 12:58:52,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:58:52,003 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:58:52,003 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] [2018-11-18 12:58:52,003 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:58:52,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:58:52,004 INFO L82 PathProgramCache]: Analyzing trace with hash -765469551, now seen corresponding path program 1 times [2018-11-18 12:58:52,004 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:58:52,004 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-18 12:58:52,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:58:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:58:53,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:58:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:58:53,276 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:58:53,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:58:53,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:58:53,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:58:53,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:58:53,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:58:53,307 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 7 states. [2018-11-18 12:59:03,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:03,047 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-11-18 12:59:03,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:59:03,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 12:59:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:03,116 INFO L225 Difference]: With dead ends: 58 [2018-11-18 12:59:03,116 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 12:59:03,117 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:59:03,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 12:59:03,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 12:59:03,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 12:59:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-11-18 12:59:03,121 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 25 [2018-11-18 12:59:03,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:03,121 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-11-18 12:59:03,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:59:03,121 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-11-18 12:59:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 12:59:03,121 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:03,122 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, 1, 1] [2018-11-18 12:59:03,122 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:03,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:03,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1328246963, now seen corresponding path program 1 times [2018-11-18 12:59:03,122 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:59:03,123 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-18 12:59:03,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:03,929 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:59:04,506 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-18 12:59:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:04,512 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:59:04,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:59:04,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:59:04,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:59:04,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:59:04,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:59:04,529 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 6 states. [2018-11-18 12:59:06,060 WARN L180 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-18 12:59:10,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:10,391 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-18 12:59:10,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:59:10,465 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-18 12:59:10,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:10,465 INFO L225 Difference]: With dead ends: 37 [2018-11-18 12:59:10,465 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:59:10,466 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:59:10,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:59:10,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:59:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:59:10,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:59:10,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 12:59:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:10,466 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:59:10,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:59:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:59:10,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:59:10,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:59:10,900 WARN L180 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-11-18 12:59:11,360 WARN L180 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L102-2(lines 95 108) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L102-3(lines 102 106) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-11-18 12:59:11,390 INFO L425 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L428 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L421 ceAbstractionStarter]: At program point L97-3(lines 97 101) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 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|)))) [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L89-2(lines 82 95) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L89-3(lines 89 93) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-18 12:59:11,391 INFO L425 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L421 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (= |__ieee754_expf_#in~x| __ieee754_expf_~x)) [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L421 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 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|)))) [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:59:11,392 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) ~one_exp~0) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) [2018-11-18 12:59:11,392 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:59:11,393 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:59:11,393 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 111 127) the Hoare annotation is: true [2018-11-18 12:59:11,393 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 111 127) no Hoare annotation was computed. [2018-11-18 12:59:11,393 INFO L425 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-11-18 12:59:11,393 INFO L425 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2018-11-18 12:59:11,393 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 111 127) no Hoare annotation was computed. [2018-11-18 12:59:11,393 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-11-18 12:59:11,393 INFO L421 ceAbstractionStarter]: At program point L118(line 118) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-11-18 12:59:11,393 INFO L425 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2018-11-18 12:59:11,399 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,400 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,400 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,400 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,400 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,400 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,400 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,400 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,403 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,403 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,404 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,404 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,405 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,405 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,405 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,406 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,406 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,406 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,406 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,406 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,408 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,408 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,408 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,408 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,409 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,409 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:59:11 BoogieIcfgContainer [2018-11-18 12:59:11,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:59:11,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:59:11,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:59:11,411 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:59:11,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:57:32" (3/4) ... [2018-11-18 12:59:11,414 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:59:11,418 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-11-18 12:59:11,418 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:59:11,419 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:59:11,423 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-11-18 12:59:11,423 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-18 12:59:11,423 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 12:59:11,424 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:59:11,424 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:59:11,442 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x [2018-11-18 12:59:11,443 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-18 12:59:11,443 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-11-18 12:59:11,466 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_28808db2-97d7-4852-a595-d4831c320ce1/bin-2019/utaipan/witness.graphml [2018-11-18 12:59:11,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:59:11,467 INFO L168 Benchmark]: Toolchain (without parser) took 108451.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:11,468 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-11-18 12:59:11,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.31 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:11,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:11,468 INFO L168 Benchmark]: Boogie Preprocessor took 34.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:59:11,468 INFO L168 Benchmark]: RCFGBuilder took 8687.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:11,469 INFO L168 Benchmark]: TraceAbstraction took 99365.29 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -41.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:11,469 INFO L168 Benchmark]: Witness Printer took 55.74 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:11,470 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 246.31 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 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 58.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 8687.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 99365.29 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -41.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 55.74 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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: 122]: 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: 97]: Loop Invariant [2018-11-18 12:59:11,474 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,474 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,474 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,474 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,475 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,475 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,475 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,475 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,475 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,475 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,475 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,476 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,476 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,476 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,476 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,476 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 41]: Loop Invariant [2018-11-18 12:59:11,476 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,477 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,477 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,477 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,477 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,477 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,477 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,477 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x - InvariantResult [Line: 84]: Loop Invariant [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,478 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,479 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,479 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,479 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,479 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:59:11,479 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,479 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,479 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-11-18 12:59:11,480 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. SAFE Result, 99.3s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 91.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 352 SDtfs, 386 SDslu, 1067 SDs, 0 SdLazy, 396 SolverSat, 2 SolverUnsat, 29 SolverUnknown, 0 SolverNotchecked, 85.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 236 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 16 NumberOfFragments, 128 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 168 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 210 ConstructedInterpolants, 38 QuantifiedInterpolants, 46147 SizeOfPredicates, 35 NumberOfNonLiveVariables, 1144 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...