./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ................................................................................................................................................................................................................................................................................................................. 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_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:58:52,226 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:58:52,227 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:58:52,233 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:58:52,233 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:58:52,233 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:58:52,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:58:52,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:58:52,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:58:52,236 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:58:52,237 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:58:52,237 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:58:52,237 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:58:52,238 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:58:52,238 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:58:52,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:58:52,239 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:58:52,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:58:52,241 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:58:52,242 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:58:52,243 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:58:52,244 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:58:52,245 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:58:52,245 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:58:52,245 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:58:52,246 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:58:52,247 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:58:52,247 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:58:52,248 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:58:52,248 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:58:52,248 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:58:52,249 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:58:52,249 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:58:52,249 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:58:52,250 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:58:52,250 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:58:52,250 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:58:52,258 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:58:52,258 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:58:52,258 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:58:52,258 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:58:52,258 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:58:52,259 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:58:52,259 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:58:52,259 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:58:52,259 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:58:52,259 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:58:52,259 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:58:52,259 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:58:52,259 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:58:52,260 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:58:52,260 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:58:52,260 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:58:52,260 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:58:52,260 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:58:52,260 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:58:52,261 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:58:52,261 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:58:52,261 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:58:52,261 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:58:52,261 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:58:52,261 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:58:52,261 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:58:52,261 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:58:52,262 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:58:52,262 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:58:52,262 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:58:52,262 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:58:52,262 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:58:52,262 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:58:52,262 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:58:52,262 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:58:52,263 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:58:52,263 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_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-12-09 18:58:52,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:58:52,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:58:52,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:58:52,289 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:58:52,290 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:58:52,290 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-12-09 18:58:52,324 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/4dfaa2545/cd0bf6c250d24ffdb74537b7193f1884/FLAGf12ca108b [2018-12-09 18:58:52,619 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:58:52,619 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-12-09 18:58:52,623 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/4dfaa2545/cd0bf6c250d24ffdb74537b7193f1884/FLAGf12ca108b [2018-12-09 18:58:52,631 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/4dfaa2545/cd0bf6c250d24ffdb74537b7193f1884 [2018-12-09 18:58:52,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:58:52,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:58:52,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:58:52,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:58:52,636 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:58:52,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bd7f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52, skipping insertion in model container [2018-12-09 18:58:52,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:58:52,651 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:58:52,743 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:58:52,745 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:58:52,759 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:58:52,771 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:58:52,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52 WrapperNode [2018-12-09 18:58:52,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:58:52,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:58:52,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:58:52,772 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:58:52,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:58:52,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:58:52,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:58:52,786 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:58:52,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... [2018-12-09 18:58:52,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:58:52,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:58:52,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:58:52,836 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:58:52,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 18:58:52,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:58:52,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:58:52,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 18:58:52,868 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:58:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:58:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-12-09 18:58:52,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-12-09 18:58:52,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:58:53,005 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:58:53,005 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 18:58:53,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:58:53 BoogieIcfgContainer [2018-12-09 18:58:53,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:58:53,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:58:53,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:58:53,008 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:58:53,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:58:52" (1/3) ... [2018-12-09 18:58:53,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26020548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:58:53, skipping insertion in model container [2018-12-09 18:58:53,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:52" (2/3) ... [2018-12-09 18:58:53,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26020548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:58:53, skipping insertion in model container [2018-12-09 18:58:53,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:58:53" (3/3) ... [2018-12-09 18:58:53,010 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-12-09 18:58:53,016 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:58:53,020 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:58:53,030 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:58:53,049 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:58:53,049 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:58:53,049 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:58:53,049 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:58:53,049 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:58:53,049 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:58:53,049 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:58:53,049 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:58:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-12-09 18:58:53,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 18:58:53,063 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:58:53,064 INFO L402 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] [2018-12-09 18:58:53,065 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:58:53,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:58:53,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1088803944, now seen corresponding path program 1 times [2018-12-09 18:58:53,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:58:53,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:58:53,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:58:53,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:58:53,099 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:58:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:58:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:58:53,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:58:53,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:58:53,148 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:58:53,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:58:53,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:58:53,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:58:53,159 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-12-09 18:58:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:58:53,171 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-12-09 18:58:53,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:58:53,172 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-09 18:58:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:58:53,178 INFO L225 Difference]: With dead ends: 70 [2018-12-09 18:58:53,179 INFO L226 Difference]: Without dead ends: 35 [2018-12-09 18:58:53,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:58:53,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-09 18:58:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-12-09 18:58:53,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-09 18:58:53,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-12-09 18:58:53,203 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-12-09 18:58:53,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:58:53,203 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-12-09 18:58:53,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:58:53,204 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-12-09 18:58:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 18:58:53,204 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:58:53,204 INFO L402 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] [2018-12-09 18:58:53,204 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:58:53,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:58:53,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1824817680, now seen corresponding path program 1 times [2018-12-09 18:58:53,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:58:53,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:58:53,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:58:53,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:58:53,206 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:58:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:58:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:58:53,260 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 18:58:53,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:58:53 BoogieIcfgContainer [2018-12-09 18:58:53,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:58:53,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:58:53,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:58:53,278 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:58:53,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:58:53" (3/4) ... [2018-12-09 18:58:53,280 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 18:58:53,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:58:53,281 INFO L168 Benchmark]: Toolchain (without parser) took 647.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -104.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:53,282 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:58:53,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.62 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:53,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.07 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:53,283 INFO L168 Benchmark]: Boogie Preprocessor took 49.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:53,283 INFO L168 Benchmark]: RCFGBuilder took 169.70 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:53,284 INFO L168 Benchmark]: TraceAbstraction took 271.29 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: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:53,284 INFO L168 Benchmark]: Witness Printer took 2.82 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. [2018-12-09 18:58:53,286 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 137.62 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.07 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 945.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.70 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 271.29 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: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.82 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: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 66, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L68] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [\old(x)=6442450949, \result=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L68] RET, EXPR ceil_float(x) VAL [ceil_float(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L68] float res = ceil_float(x); [L71] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000] [L57] return x != x; VAL [\old(x)=6442450949, \result=0, huge_ceil=1000000000000000000000000000000, x=6442450949] [L71] RET, EXPR isnan_float(res) VAL [huge_ceil=1000000000000000000000000000000, isnan_float(res)=0, res=6442450949, x=6442450949] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=39occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-635dfa2 [2018-12-09 18:58:54,588 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:58:54,589 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:58:54,597 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:58:54,597 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:58:54,598 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:58:54,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:58:54,599 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:58:54,600 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:58:54,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:58:54,601 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:58:54,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:58:54,601 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:58:54,602 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:58:54,602 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:58:54,603 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:58:54,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:58:54,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:58:54,605 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:58:54,606 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:58:54,607 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:58:54,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:58:54,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:58:54,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:58:54,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:58:54,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:58:54,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:58:54,611 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:58:54,612 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:58:54,612 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:58:54,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:58:54,613 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:58:54,613 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:58:54,613 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:58:54,614 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:58:54,614 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:58:54,614 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 18:58:54,624 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:58:54,625 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:58:54,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:58:54,625 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:58:54,626 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:58:54,626 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:58:54,626 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:58:54,626 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:58:54,626 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:58:54,626 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:58:54,627 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:58:54,627 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:58:54,627 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:58:54,627 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:58:54,627 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:58:54,627 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:58:54,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:58:54,628 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 18:58:54,628 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 18:58:54,628 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:58:54,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:58:54,628 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 18:58:54,628 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:58:54,628 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:58:54,629 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:58:54,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:58:54,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:58:54,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:58:54,629 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:58:54,629 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:58:54,629 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:58:54,630 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 18:58:54,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:58:54,630 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 18:58:54,630 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 18:58:54,630 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_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-12-09 18:58:54,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:58:54,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:58:54,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:58:54,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:58:54,667 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:58:54,668 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-12-09 18:58:54,710 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/4fac43718/c969dd6fbe0049d2affbf75e6e8eca2b/FLAGf09896db5 [2018-12-09 18:58:55,111 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:58:55,111 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-12-09 18:58:55,115 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/4fac43718/c969dd6fbe0049d2affbf75e6e8eca2b/FLAGf09896db5 [2018-12-09 18:58:55,123 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/data/4fac43718/c969dd6fbe0049d2affbf75e6e8eca2b [2018-12-09 18:58:55,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:58:55,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:58:55,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:58:55,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:58:55,129 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:58:55,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55, skipping insertion in model container [2018-12-09 18:58:55,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:58:55,146 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:58:55,253 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:58:55,257 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:58:55,276 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:58:55,292 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:58:55,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55 WrapperNode [2018-12-09 18:58:55,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:58:55,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:58:55,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:58:55,293 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:58:55,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:58:55,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:58:55,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:58:55,310 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:58:55,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... [2018-12-09 18:58:55,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:58:55,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:58:55,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:58:55,337 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:58:55,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:58:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 18:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 18:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 18:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 18:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:58:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:58:55,401 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-12-09 18:58:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-12-09 18:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 18:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 18:58:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:58:55,656 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:58:55,794 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:58:55,794 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 18:58:55,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:58:55 BoogieIcfgContainer [2018-12-09 18:58:55,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:58:55,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:58:55,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:58:55,797 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:58:55,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:58:55" (1/3) ... [2018-12-09 18:58:55,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2bfea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:58:55, skipping insertion in model container [2018-12-09 18:58:55,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:58:55" (2/3) ... [2018-12-09 18:58:55,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2bfea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:58:55, skipping insertion in model container [2018-12-09 18:58:55,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:58:55" (3/3) ... [2018-12-09 18:58:55,799 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-12-09 18:58:55,804 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:58:55,809 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:58:55,818 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:58:55,835 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 18:58:55,835 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:58:55,835 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:58:55,836 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:58:55,836 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:58:55,836 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:58:55,836 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:58:55,836 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:58:55,836 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:58:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-09 18:58:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 18:58:55,849 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:58:55,850 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:58:55,851 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:58:55,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:58:55,854 INFO L82 PathProgramCache]: Analyzing trace with hash 440212005, now seen corresponding path program 1 times [2018-12-09 18:58:55,857 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:58:55,857 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 [2018-12-09 18:58:55,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:58:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:58:55,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:58:55,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:58:55,920 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:58:55,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:58:55,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:58:55,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:58:55,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:58:55,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:58:55,939 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-09 18:58:55,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:58:55,952 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-12-09 18:58:55,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:58:55,953 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 18:58:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:58:55,960 INFO L225 Difference]: With dead ends: 68 [2018-12-09 18:58:55,960 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 18:58:55,962 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:58:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 18:58:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 18:58:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 18:58:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-12-09 18:58:55,986 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-12-09 18:58:55,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:58:55,986 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-12-09 18:58:55,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:58:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-12-09 18:58:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 18:58:55,987 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:58:55,987 INFO L402 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] [2018-12-09 18:58:55,987 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:58:55,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:58:55,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1644236608, now seen corresponding path program 1 times [2018-12-09 18:58:55,988 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:58:55,988 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 [2018-12-09 18:58:55,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:58:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:58:56,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:58:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:58:56,423 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:58:56,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:58:56,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 18:58:56,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 18:58:56,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 18:58:56,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:58:56,431 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-12-09 18:58:56,839 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 18:58:57,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:58:57,772 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-12-09 18:58:57,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 18:58:57,772 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 18:58:57,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:58:57,774 INFO L225 Difference]: With dead ends: 43 [2018-12-09 18:58:57,774 INFO L226 Difference]: Without dead ends: 36 [2018-12-09 18:58:57,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 18:58:57,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-09 18:58:57,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-12-09 18:58:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 18:58:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-12-09 18:58:57,782 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-12-09 18:58:57,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:58:57,782 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-12-09 18:58:57,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 18:58:57,783 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-12-09 18:58:57,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 18:58:57,783 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:58:57,783 INFO L402 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] [2018-12-09 18:58:57,784 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:58:57,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:58:57,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1840750113, now seen corresponding path program 1 times [2018-12-09 18:58:57,784 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:58:57,785 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 [2018-12-09 18:58:57,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:58:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:58:57,812 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:58:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:58:57,909 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:58:57,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:58:57,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 18:58:57,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 18:58:57,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 18:58:57,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:58:57,918 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-12-09 18:58:58,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:58:58,363 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-12-09 18:58:58,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 18:58:58,363 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 18:58:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:58:58,364 INFO L225 Difference]: With dead ends: 41 [2018-12-09 18:58:58,364 INFO L226 Difference]: Without dead ends: 33 [2018-12-09 18:58:58,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 18:58:58,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-09 18:58:58,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-09 18:58:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-09 18:58:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-12-09 18:58:58,367 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-12-09 18:58:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:58:58,368 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-12-09 18:58:58,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 18:58:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-12-09 18:58:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 18:58:58,368 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:58:58,368 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:58:58,368 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:58:58,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:58:58,369 INFO L82 PathProgramCache]: Analyzing trace with hash -580032546, now seen corresponding path program 1 times [2018-12-09 18:58:58,369 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 18:58:58,369 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/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 [2018-12-09 18:58:58,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:58:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:58:58,419 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 18:58:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:58:58,501 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 18:58:58,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:58:58,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 18:58:58,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 18:58:58,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 18:58:58,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 18:58:58,514 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-12-09 18:58:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:58:59,063 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-12-09 18:58:59,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 18:58:59,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 18:58:59,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:58:59,064 INFO L225 Difference]: With dead ends: 39 [2018-12-09 18:58:59,064 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 18:58:59,064 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 18:58:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 18:58:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 18:58:59,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 18:58:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 18:58:59,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-09 18:58:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:58:59,065 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 18:58:59,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 18:58:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 18:58:59,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:58:59,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 18:58:59,117 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 57) no Hoare annotation was computed. [2018-12-09 18:58:59,117 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 57) the Hoare annotation is: true [2018-12-09 18:58:59,117 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 57) no Hoare annotation was computed. [2018-12-09 18:58:59,117 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:58:59,117 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:58:59,117 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:58:59,117 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 18:58:59,117 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 18:58:59,117 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 18:58:59,117 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 18:58:59,117 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 59 77) the Hoare annotation is: true [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 59 77) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 59 77) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L444 ceAbstractionStarter]: At program point L71(line 71) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point L71-1(lines 71 74) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L444 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point L68-1(line 68) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-12-09 18:58:59,118 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L451 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-09 18:58:59,119 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-12-09 18:58:59,120 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-12-09 18:58:59,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:58:59 BoogieIcfgContainer [2018-12-09 18:58:59,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:58:59,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:58:59,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:58:59,127 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:58:59,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:58:55" (3/4) ... [2018-12-09 18:58:59,130 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:58:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 18:58:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 18:58:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 18:58:59,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-12-09 18:58:59,137 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-09 18:58:59,137 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 18:58:59,138 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 18:58:59,154 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 18:58:59,167 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_05dc950f-8ac4-4c1d-9ff7-3f0595ef94af/bin-2019/utaipan/witness.graphml [2018-12-09 18:58:59,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:58:59,167 INFO L168 Benchmark]: Toolchain (without parser) took 4042.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 944.7 MB in the beginning and 941.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 133.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:59,168 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:58:59,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.51 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:59,169 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.93 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:59,169 INFO L168 Benchmark]: Boogie Preprocessor took 26.66 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:58:59,169 INFO L168 Benchmark]: RCFGBuilder took 457.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:59,169 INFO L168 Benchmark]: TraceAbstraction took 3331.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.9 MB in the end (delta: 156.7 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:58:59,170 INFO L168 Benchmark]: Witness Printer took 39.72 ms. Allocated memory is still 1.2 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:58:59,171 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.51 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.93 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.66 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 457.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3331.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.9 MB in the end (delta: 156.7 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. * Witness Printer took 39.72 ms. Allocated memory is still 1.2 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 13 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...