./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e .................................................................................................................................................................................................................................................................................................................................................................................................................... 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_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/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 64c6d061d6a52be18c2dbf1f223acaf24ab6149e ............................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 06:12:21,191 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:12:21,193 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:12:21,200 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:12:21,201 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:12:21,201 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:12:21,202 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:12:21,203 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:12:21,204 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:12:21,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:12:21,205 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:12:21,206 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:12:21,206 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:12:21,207 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:12:21,208 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:12:21,208 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:12:21,210 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:12:21,211 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:12:21,212 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:12:21,213 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:12:21,214 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:12:21,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:12:21,217 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:12:21,217 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:12:21,218 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:12:21,219 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:12:21,219 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:12:21,220 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:12:21,221 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:12:21,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:12:21,222 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:12:21,223 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:12:21,223 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:12:21,223 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:12:21,224 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:12:21,225 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:12:21,225 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 06:12:21,236 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:12:21,236 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:12:21,237 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:12:21,237 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:12:21,237 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:12:21,237 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:12:21,237 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:12:21,238 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 06:12:21,238 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:12:21,238 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:12:21,238 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 06:12:21,238 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 06:12:21,238 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:12:21,239 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:12:21,239 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:12:21,239 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:12:21,239 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:12:21,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:12:21,239 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:12:21,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:12:21,240 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:12:21,240 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:12:21,240 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:12:21,240 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:12:21,240 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:12:21,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:12:21,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:12:21,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:12:21,241 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:12:21,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:12:21,241 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:12:21,243 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:12:21,243 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:12:21,243 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 06:12:21,243 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:12:21,243 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:12:21,243 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 06:12:21,243 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_d39fdfb2-6681-426c-96d6-3bf76d37886d/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-11-23 06:12:21,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:12:21,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:12:21,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:12:21,276 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:12:21,276 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:12:21,277 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-23 06:12:21,313 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/9dace7225/7703ac6de3a14d979660c6848c7ce680/FLAG792780425 [2018-11-23 06:12:21,643 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:12:21,643 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-23 06:12:21,648 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/9dace7225/7703ac6de3a14d979660c6848c7ce680/FLAG792780425 [2018-11-23 06:12:22,076 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/9dace7225/7703ac6de3a14d979660c6848c7ce680 [2018-11-23 06:12:22,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:12:22,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:12:22,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:12:22,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:12:22,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:12:22,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e42f8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22, skipping insertion in model container [2018-11-23 06:12:22,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:12:22,105 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:12:22,207 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:12:22,209 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:12:22,221 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:12:22,230 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:12:22,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22 WrapperNode [2018-11-23 06:12:22,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:12:22,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:12:22,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:12:22,231 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:12:22,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:12:22,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:12:22,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:12:22,244 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:12:22,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... [2018-11-23 06:12:22,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:12:22,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:12:22,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:12:22,255 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:12:22,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:12:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 06:12:22,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 06:12:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:12:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:12:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 06:12:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 06:12:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 06:12:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 06:12:22,410 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:12:22,411 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 06:12:22,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:12:22 BoogieIcfgContainer [2018-11-23 06:12:22,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:12:22,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:12:22,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:12:22,414 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:12:22,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:12:22" (1/3) ... [2018-11-23 06:12:22,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5033757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:12:22, skipping insertion in model container [2018-11-23 06:12:22,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:22" (2/3) ... [2018-11-23 06:12:22,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5033757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:12:22, skipping insertion in model container [2018-11-23 06:12:22,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:12:22" (3/3) ... [2018-11-23 06:12:22,417 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-11-23 06:12:22,423 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:12:22,427 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 06:12:22,436 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 06:12:22,459 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:12:22,459 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 06:12:22,459 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:12:22,459 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:12:22,459 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:12:22,459 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:12:22,459 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:12:22,459 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:12:22,472 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 06:12:22,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 06:12:22,475 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:12:22,476 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:12:22,478 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:12:22,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:12:22,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-23 06:12:22,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:12:22,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:12:22,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:12:22,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:12:22,513 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:12:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:12:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:12:22,550 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #26#return; [?] CALL call #t~ret1 := main(); [?] havoc ~x~0;~x~0 := #t~nondet0;havoc #t~nondet0; VAL [main_~x~0=2.0] [?] assume ~someBinaryDOUBLEComparisonOperation(~x~0, ~someUnaryDOUBLEoperation(1.0E10)) && ~someBinaryDOUBLEComparisonOperation(~x~0, 1.0E10); VAL [main_~x~0=2.0] [?] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~x~0, ~x~0) then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] ~x~0 := #t~nondet0; [L11] havoc #t~nondet0; VAL [~x~0=2.0] [L13-L15] assume ~someBinaryDOUBLEComparisonOperation(~x~0, ~someUnaryDOUBLEoperation(1.0E10)) && ~someBinaryDOUBLEComparisonOperation(~x~0, 1.0E10); VAL [~x~0=2.0] [L14] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~x~0, ~x~0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] ~x~0 := #t~nondet0; [L11] havoc #t~nondet0; VAL [~x~0=2.0] [L13-L15] assume ~someBinaryDOUBLEComparisonOperation(~x~0, ~someUnaryDOUBLEoperation(1.0E10)) && ~someBinaryDOUBLEComparisonOperation(~x~0, 1.0E10); VAL [~x~0=2.0] [L14] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~x~0, ~x~0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] ~x~0 := #t~nondet0; [L11] havoc #t~nondet0; VAL [~x~0=2.0] [L13] COND TRUE ~someBinaryDOUBLEComparisonOperation(~x~0, ~someUnaryDOUBLEoperation(1.0E10)) && ~someBinaryDOUBLEComparisonOperation(~x~0, 1.0E10) VAL [~x~0=2.0] [L14] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~x~0, ~x~0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] ~x~0 := #t~nondet0; [L11] havoc #t~nondet0; VAL [~x~0=2.0] [L13] COND TRUE ~someBinaryDOUBLEComparisonOperation(~x~0, ~someUnaryDOUBLEoperation(1.0E10)) && ~someBinaryDOUBLEComparisonOperation(~x~0, 1.0E10) VAL [~x~0=2.0] [L14] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~x~0, ~x~0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] ~x~0 := #t~nondet0; [L11] havoc #t~nondet0; VAL [~x~0=2.0] [L13] COND TRUE ~someBinaryDOUBLEComparisonOperation(~x~0, ~someUnaryDOUBLEoperation(1.0E10)) && ~someBinaryDOUBLEComparisonOperation(~x~0, 1.0E10) VAL [~x~0=2.0] [L14] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~x~0, ~x~0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] ~x~0 := #t~nondet0; [L11] havoc #t~nondet0; VAL [~x~0=2.0] [L13] COND TRUE ~someBinaryDOUBLEComparisonOperation(~x~0, ~someUnaryDOUBLEoperation(1.0E10)) && ~someBinaryDOUBLEComparisonOperation(~x~0, 1.0E10) VAL [~x~0=2.0] [L14] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~x~0, ~x~0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] COND TRUE x >= -1e10 && x <= 1e10 VAL [x=2] [L14] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 06:12:22,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:12:22 BoogieIcfgContainer [2018-11-23 06:12:22,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:12:22,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:12:22,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:12:22,570 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:12:22,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:12:22" (3/4) ... [2018-11-23 06:12:22,573 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 06:12:22,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:12:22,574 INFO L168 Benchmark]: Toolchain (without parser) took 495.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:12:22,575 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:12:22,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:22,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.62 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:12:22,576 INFO L168 Benchmark]: Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:12:22,576 INFO L168 Benchmark]: RCFGBuilder took 155.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:22,577 INFO L168 Benchmark]: TraceAbstraction took 158.12 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:22,577 INFO L168 Benchmark]: Witness Printer took 3.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:12:22,579 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 12.62 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.37 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 155.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 158.12 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.32 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] COND TRUE x >= -1e10 && x <= 1e10 VAL [x=2] [L14] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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-aa41828 [2018-11-23 06:12:24,031 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:12:24,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:12:24,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:12:24,040 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:12:24,041 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:12:24,041 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:12:24,043 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:12:24,044 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:12:24,044 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:12:24,045 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:12:24,045 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:12:24,046 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:12:24,047 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:12:24,047 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:12:24,048 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:12:24,049 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:12:24,050 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:12:24,051 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:12:24,052 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:12:24,053 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:12:24,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:12:24,055 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:12:24,056 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:12:24,056 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:12:24,056 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:12:24,058 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:12:24,058 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:12:24,059 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:12:24,060 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:12:24,060 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:12:24,061 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:12:24,061 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:12:24,061 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:12:24,062 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:12:24,062 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:12:24,062 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 06:12:24,073 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:12:24,073 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:12:24,074 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:12:24,074 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:12:24,074 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:12:24,074 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:12:24,075 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:12:24,075 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:12:24,075 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:12:24,075 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:12:24,075 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 06:12:24,076 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 06:12:24,077 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:12:24,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:12:24,077 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:12:24,077 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:12:24,077 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:12:24,077 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:12:24,077 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:12:24,077 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:12:24,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:12:24,078 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:12:24,078 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:12:24,078 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:12:24,078 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 06:12:24,078 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:12:24,078 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 06:12:24,078 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 06:12:24,079 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_d39fdfb2-6681-426c-96d6-3bf76d37886d/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 -> 64c6d061d6a52be18c2dbf1f223acaf24ab6149e [2018-11-23 06:12:24,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:12:24,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:12:24,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:12:24,118 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:12:24,119 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:12:24,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-23 06:12:24,160 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/0655ff6f6/2bbec03979ec491f82450950a3b77e40/FLAG3b15c02b3 [2018-11-23 06:12:24,480 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:12:24,480 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/sv-benchmarks/c/float-benchs/nan_float_range_true-unreach-call_true-termination.c [2018-11-23 06:12:24,484 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/0655ff6f6/2bbec03979ec491f82450950a3b77e40/FLAG3b15c02b3 [2018-11-23 06:12:24,917 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/data/0655ff6f6/2bbec03979ec491f82450950a3b77e40 [2018-11-23 06:12:24,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:12:24,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:12:24,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:12:24,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:12:24,923 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:12:24,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:12:24" (1/1) ... [2018-11-23 06:12:24,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@655b2880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:24, skipping insertion in model container [2018-11-23 06:12:24,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:12:24" (1/1) ... [2018-11-23 06:12:24,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:12:24,943 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:12:25,074 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:12:25,079 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:12:25,091 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:12:25,100 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:12:25,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25 WrapperNode [2018-11-23 06:12:25,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:12:25,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:12:25,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:12:25,101 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:12:25,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:12:25,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:12:25,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:12:25,115 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:12:25,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... [2018-11-23 06:12:25,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:12:25,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:12:25,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:12:25,130 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:12:25,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:12:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 06:12:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 06:12:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:12:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:12:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 06:12:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 06:12:25,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 06:12:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 06:12:25,465 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:12:25,465 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 06:12:25,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:12:25 BoogieIcfgContainer [2018-11-23 06:12:25,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:12:25,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:12:25,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:12:25,468 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:12:25,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:12:24" (1/3) ... [2018-11-23 06:12:25,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7da7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:12:25, skipping insertion in model container [2018-11-23 06:12:25,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:12:25" (2/3) ... [2018-11-23 06:12:25,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7da7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:12:25, skipping insertion in model container [2018-11-23 06:12:25,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:12:25" (3/3) ... [2018-11-23 06:12:25,471 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range_true-unreach-call_true-termination.c [2018-11-23 06:12:25,478 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:12:25,482 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 06:12:25,491 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 06:12:25,510 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 06:12:25,510 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:12:25,511 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 06:12:25,511 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:12:25,511 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:12:25,511 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:12:25,511 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:12:25,511 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:12:25,511 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:12:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 06:12:25,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 06:12:25,528 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:12:25,529 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 06:12:25,530 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:12:25,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:12:25,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-23 06:12:25,536 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 06:12:25,536 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-23 06:12:25,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:12:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:12:25,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 06:12:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:12:26,070 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 06:12:26,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:12:26,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 06:12:26,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 06:12:26,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 06:12:26,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:12:26,091 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-23 06:12:26,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:12:26,537 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-23 06:12:26,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 06:12:26,541 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-23 06:12:26,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:12:26,547 INFO L225 Difference]: With dead ends: 28 [2018-11-23 06:12:26,548 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 06:12:26,550 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:12:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 06:12:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 06:12:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 06:12:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 06:12:26,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-23 06:12:26,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:12:26,569 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:12:26,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 06:12:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:12:26,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:12:26,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 06:12:26,725 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-23 06:12:26,726 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 06:12:26,726 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 06:12:26,727 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 06:12:26,727 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 06:12:26,727 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 06:12:26,727 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 06:12:26,727 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (fp.geq ((_ to_fp 11 53) roundNearestTiesToEven main_~x~0) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10000000000.0))) [2018-11-23 06:12:26,727 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 17) the Hoare annotation is: true [2018-11-23 06:12:26,727 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 15) no Hoare annotation was computed. [2018-11-23 06:12:26,727 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 17) no Hoare annotation was computed. [2018-11-23 06:12:26,728 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-11-23 06:12:26,728 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 17) no Hoare annotation was computed. [2018-11-23 06:12:26,728 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-23 06:12:26,728 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 6) the Hoare annotation is: true [2018-11-23 06:12:26,728 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 6) no Hoare annotation was computed. [2018-11-23 06:12:26,728 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-23 06:12:26,728 INFO L448 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-11-23 06:12:26,728 INFO L448 ceAbstractionStarter]: For program point L6-3(line 6) no Hoare annotation was computed. [2018-11-23 06:12:26,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:12:26 BoogieIcfgContainer [2018-11-23 06:12:26,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:12:26,730 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:12:26,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:12:26,731 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:12:26,731 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:12:25" (3/4) ... [2018-11-23 06:12:26,733 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:12:26,737 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 06:12:26,738 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 06:12:26,738 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 06:12:26,740 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 06:12:26,740 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 06:12:26,740 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 06:12:26,764 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d39fdfb2-6681-426c-96d6-3bf76d37886d/bin-2019/utaipan/witness.graphml [2018-11-23 06:12:26,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:12:26,765 INFO L168 Benchmark]: Toolchain (without parser) took 1845.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -106.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:26,766 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:12:26,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.00 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:26,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.54 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:26,767 INFO L168 Benchmark]: Boogie Preprocessor took 15.44 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:12:26,767 INFO L168 Benchmark]: RCFGBuilder took 335.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:26,767 INFO L168 Benchmark]: TraceAbstraction took 1264.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:26,768 INFO L168 Benchmark]: Witness Printer took 33.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-23 06:12:26,770 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.00 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 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 13.54 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.44 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 335.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1264.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 11.5 GB. * Witness Printer took 33.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 7 SDslu, 40 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 2 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...