./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:02:23,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:02:23,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:02:23,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:02:23,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:02:23,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:02:23,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:02:23,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:02:23,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:02:23,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:02:23,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:02:23,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:02:23,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:02:23,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:02:23,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:02:23,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:02:23,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:02:23,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:02:23,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:02:23,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:02:23,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:02:23,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:02:23,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:02:23,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:02:23,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:02:23,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:02:23,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:02:23,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:02:23,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:02:23,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:02:23,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:02:23,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:02:23,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:02:23,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:02:23,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:02:23,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:02:23,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:02:23,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:02:23,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:02:23,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:02:23,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:02:23,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:02:23,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:02:23,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:02:23,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:02:23,281 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:02:23,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:02:23,282 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:02:23,282 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:02:23,282 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:02:23,282 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:02:23,283 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:02:23,283 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:02:23,283 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:02:23,284 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:02:23,284 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:02:23,284 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:02:23,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:02:23,285 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:02:23,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:02:23,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:02:23,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:02:23,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:02:23,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:02:23,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:02:23,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:02:23,287 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:02:23,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:02:23,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:02:23,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:02:23,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:02:23,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:02:23,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:02:23,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:02:23,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:02:23,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:02:23,290 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:02:23,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:02:23,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:02:23,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:02:23,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:02:23,291 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 [2021-11-07 01:02:23,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:02:23,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:02:23,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:02:23,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:02:23,570 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:02:23,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2021-11-07 01:02:23,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/a30774688/c270dfd1142f46a7a1b06362e1a5f31f/FLAG2ca9ad2ab [2021-11-07 01:02:24,165 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:02:24,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2021-11-07 01:02:24,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/a30774688/c270dfd1142f46a7a1b06362e1a5f31f/FLAG2ca9ad2ab [2021-11-07 01:02:24,559 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/a30774688/c270dfd1142f46a7a1b06362e1a5f31f [2021-11-07 01:02:24,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:02:24,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:02:24,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:02:24,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:02:24,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:02:24,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ff00b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24, skipping insertion in model container [2021-11-07 01:02:24,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:02:24,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:02:24,801 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2021-11-07 01:02:24,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:02:24,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:02:24,836 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2021-11-07 01:02:24,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:02:24,850 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:02:24,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24 WrapperNode [2021-11-07 01:02:24,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:02:24,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:02:24,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:02:24,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:02:24,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:02:24,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:02:24,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:02:24,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:02:24,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:02:24,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:02:24,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:02:24,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:02:24,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (1/1) ... [2021-11-07 01:02:24,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:02:24,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:02:24,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:02:24,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:02:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:02:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:02:24,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:02:24,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:02:25,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:02:25,197 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 01:02:25,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:25 BoogieIcfgContainer [2021-11-07 01:02:25,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:02:25,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:02:25,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:02:25,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:02:25,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:02:24" (1/3) ... [2021-11-07 01:02:25,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5340f306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:25, skipping insertion in model container [2021-11-07 01:02:25,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:24" (2/3) ... [2021-11-07 01:02:25,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5340f306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:25, skipping insertion in model container [2021-11-07 01:02:25,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:25" (3/3) ... [2021-11-07 01:02:25,210 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2021-11-07 01:02:25,216 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:02:25,216 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:02:25,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:02:25,274 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:02:25,274 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:02:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:25,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-07 01:02:25,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:25,294 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-07 01:02:25,295 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:02:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash 45328, now seen corresponding path program 1 times [2021-11-07 01:02:25,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:02:25,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426223425] [2021-11-07 01:02:25,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:25,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:02:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:02:25,429 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:02:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:02:25,498 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:02:25,501 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:02:25,502 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:02:25,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:02:25,521 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 01:02:25,524 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:02:25,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:02:25 BoogieIcfgContainer [2021-11-07 01:02:25,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:02:25,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:02:25,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:02:25,559 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:02:25,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:25" (3/4) ... [2021-11-07 01:02:25,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:02:25,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:02:25,573 INFO L168 Benchmark]: Toolchain (without parser) took 1000.67 ms. Allocated memory is still 98.6 MB. Free memory was 66.9 MB in the beginning and 49.7 MB in the end (delta: 17.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:25,574 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:25,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.62 ms. Allocated memory is still 98.6 MB. Free memory was 66.9 MB in the beginning and 74.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:25,577 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.27 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 73.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:25,578 INFO L168 Benchmark]: Boogie Preprocessor took 17.21 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 72.1 MB in the end (delta: 995.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:25,580 INFO L168 Benchmark]: RCFGBuilder took 292.96 ms. Allocated memory is still 98.6 MB. Free memory was 72.1 MB in the beginning and 62.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:25,582 INFO L168 Benchmark]: TraceAbstraction took 343.97 ms. Allocated memory is still 98.6 MB. Free memory was 62.5 MB in the beginning and 50.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:25,586 INFO L168 Benchmark]: Witness Printer took 7.54 ms. Allocated memory is still 98.6 MB. Free memory was 50.0 MB in the beginning and 49.7 MB in the end (delta: 330.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:25,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.62 ms. Allocated memory is still 98.6 MB. Free memory was 66.9 MB in the beginning and 74.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.27 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 73.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.21 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 72.1 MB in the end (delta: 995.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 292.96 ms. Allocated memory is still 98.6 MB. Free memory was 72.1 MB in the beginning and 62.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 343.97 ms. Allocated memory is still 98.6 MB. Free memory was 62.5 MB in the beginning and 50.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 7.54 ms. Allocated memory is still 98.6 MB. Free memory was 50.0 MB in the beginning and 49.7 MB in the end (delta: 330.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 11]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 11, overapproximation of someUnaryDOUBLEoperation at line 8, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; [L11] COND TRUE !(d == fp) [L11] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 01:02:25,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:02:28,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:02:28,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:02:28,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:02:28,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:02:28,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:02:28,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:02:28,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:02:28,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:02:28,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:02:28,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:02:28,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:02:28,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:02:28,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:02:28,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:02:28,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:02:28,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:02:28,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:02:28,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:02:28,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:02:28,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:02:28,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:02:28,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:02:28,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:02:28,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:02:28,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:02:28,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:02:28,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:02:28,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:02:28,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:02:28,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:02:28,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:02:28,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:02:28,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:02:28,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:02:28,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:02:28,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:02:28,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:02:28,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:02:28,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:02:28,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:02:28,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:02:28,687 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:02:28,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:02:28,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:02:28,690 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:02:28,690 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:02:28,690 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:02:28,690 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:02:28,691 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:02:28,691 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:02:28,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:02:28,694 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:02:28,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:02:28,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:02:28,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:02:28,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:02:28,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:02:28,696 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:02:28,696 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:02:28,697 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:02:28,697 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:02:28,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:02:28,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:02:28,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:02:28,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:02:28,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:02:28,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:02:28,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:02:28,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:02:28,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:02:28,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:02:28,700 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:02:28,700 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:02:28,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:02:28,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:02:28,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:02:28,702 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bafd616607c3b26e5c116d6e80df383a1448d022ecfba32980ae94deeb4f2706 [2021-11-07 01:02:29,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:02:29,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:02:29,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:02:29,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:02:29,230 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:02:29,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2021-11-07 01:02:29,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/cde97c2a7/29a8805ad998485988dbfab3a3147514/FLAGb7c64a5fd [2021-11-07 01:02:29,974 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:02:29,974 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2021-11-07 01:02:29,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/cde97c2a7/29a8805ad998485988dbfab3a3147514/FLAGb7c64a5fd [2021-11-07 01:02:30,330 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/data/cde97c2a7/29a8805ad998485988dbfab3a3147514 [2021-11-07 01:02:30,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:02:30,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:02:30,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:02:30,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:02:30,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:02:30,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f1a49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30, skipping insertion in model container [2021-11-07 01:02:30,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:02:30,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:02:30,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2021-11-07 01:02:30,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:02:30,551 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:02:30,572 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c[380,393] [2021-11-07 01:02:30,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:02:30,619 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:02:30,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30 WrapperNode [2021-11-07 01:02:30,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:02:30,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:02:30,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:02:30,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:02:30,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:02:30,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:02:30,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:02:30,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:02:30,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:02:30,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:02:30,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:02:30,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:02:30,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (1/1) ... [2021-11-07 01:02:30,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:02:30,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:02:30,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:02:30,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:02:30,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:02:30,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:02:30,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:02:30,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:02:31,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:02:31,197 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 01:02:31,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:31 BoogieIcfgContainer [2021-11-07 01:02:31,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:02:31,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:02:31,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:02:31,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:02:31,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:02:30" (1/3) ... [2021-11-07 01:02:31,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381d587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:31, skipping insertion in model container [2021-11-07 01:02:31,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:02:30" (2/3) ... [2021-11-07 01:02:31,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381d587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:31, skipping insertion in model container [2021-11-07 01:02:31,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:31" (3/3) ... [2021-11-07 01:02:31,210 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2021-11-07 01:02:31,217 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:02:31,221 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:02:31,318 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:02:31,338 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:02:31,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:02:31,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:31,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 01:02:31,366 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:31,367 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 01:02:31,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:02:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:31,384 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-07 01:02:31,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:31,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007542010] [2021-11-07 01:02:31,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:31,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:31,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:31,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:31,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:02:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:31,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:02:31,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:02:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:02:31,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:02:31,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:02:31,813 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:02:31,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007542010] [2021-11-07 01:02:31,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007542010] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:31,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:31,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:02:31,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317644389] [2021-11-07 01:02:31,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:02:31,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:02:31,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:02:31,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:02:31,854 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:31,880 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-11-07 01:02:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:02:31,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-07 01:02:31,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:31,890 INFO L225 Difference]: With dead ends: 13 [2021-11-07 01:02:31,890 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:02:31,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:02:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:02:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:02:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:02:31,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-11-07 01:02:31,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:31,923 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:02:31,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:31,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:02:31,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:02:31,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:02:31,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:32,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:32,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:02:32,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:02:32,192 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:02:32,192 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 01:02:32,192 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:02:32,193 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 01:02:32,193 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-11-07 01:02:32,194 INFO L853 garLoopResultBuilder]: At program point L13(lines 5 14) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (and (= ULTIMATE.start_main_~d~0 (fp.neg ((_ to_fp 11 53) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0)))) (= ULTIMATE.start_main_~fp~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))))))) [2021-11-07 01:02:32,194 INFO L857 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2021-11-07 01:02:32,194 INFO L857 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-11-07 01:02:32,194 INFO L857 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2021-11-07 01:02:32,200 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 01:02:32,202 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:02:32,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,216 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,217 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,217 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:02:32 BoogieIcfgContainer [2021-11-07 01:02:32,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:02:32,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:02:32,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:02:32,220 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:02:32,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:31" (3/4) ... [2021-11-07 01:02:32,225 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:02:32,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-07 01:02:32,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 01:02:32,237 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 01:02:32,238 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:02:32,266 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: d == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) [2021-11-07 01:02:32,272 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:02:32,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:02:32,275 INFO L168 Benchmark]: Toolchain (without parser) took 1937.82 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 105.2 kB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:32,276 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:32,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.15 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 42.2 MB in the end (delta: -5.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:32,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.49 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 41.8 MB in the end (delta: 343.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:32,278 INFO L168 Benchmark]: Boogie Preprocessor took 27.32 ms. Allocated memory is still 58.7 MB. Free memory was 41.8 MB in the beginning and 40.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:02:32,278 INFO L168 Benchmark]: RCFGBuilder took 480.05 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 31.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:32,279 INFO L168 Benchmark]: TraceAbstraction took 1016.89 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 39.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:32,279 INFO L168 Benchmark]: Witness Printer took 52.88 ms. Allocated memory is still 73.4 MB. Free memory was 39.1 MB in the beginning and 37.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:02:32,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.15 ms. Allocated memory is still 58.7 MB. Free memory was 36.9 MB in the beginning and 42.2 MB in the end (delta: -5.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.49 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 41.8 MB in the end (delta: 343.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.32 ms. Allocated memory is still 58.7 MB. Free memory was 41.8 MB in the beginning and 40.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 480.05 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 31.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1016.89 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 31.4 MB in the beginning and 39.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Witness Printer took 52.88 ms. Allocated memory is still 73.4 MB. Free memory was 39.1 MB in the beginning and 37.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 23 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant [2021-11-07 01:02:32,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 01:02:32,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: d == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) RESULT: Ultimate proved your program to be correct! [2021-11-07 01:02:32,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c28b462a-af44-4e92-a212-4230977800af/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE