./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan --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 48a71202a0e82b0e2ae39f845042f68e3a18e5b0 ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan --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 48a71202a0e82b0e2ae39f845042f68e3a18e5b0 ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:58:46,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:46,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:46,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:46,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:46,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:46,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:46,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:46,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:46,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:46,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:46,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:46,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:46,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:46,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:46,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:46,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:46,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:46,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:46,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:46,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:46,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:46,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:46,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:46,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:46,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:46,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:46,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:46,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:46,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:46,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:46,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:46,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:46,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:46,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:46,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:46,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:46,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:46,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:46,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:46,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:46,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:58:46,284 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:46,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:46,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:46,286 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:46,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:46,286 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:46,286 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:58:46,287 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:46,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:46,287 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:58:46,287 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:58:46,287 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:46,288 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:58:46,288 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:58:46,288 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:58:46,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:46,289 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:46,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:58:46,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:46,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:46,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:46,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:46,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:46,290 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:46,290 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:46,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:46,291 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:46,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:46,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:46,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:46,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:46,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:46,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:46,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:46,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:46,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:58:46,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:58:46,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:46,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:46,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:46,294 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-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48a71202a0e82b0e2ae39f845042f68e3a18e5b0 [2020-11-22 12:58:46,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:46,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:46,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:46,562 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:46,562 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:46,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-11-22 12:58:46,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/1a6b53435/141fdcf3da6a422685620b38a2626a56/FLAGf4970ba23 [2020-11-22 12:58:47,185 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:47,185 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-11-22 12:58:47,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/1a6b53435/141fdcf3da6a422685620b38a2626a56/FLAGf4970ba23 [2020-11-22 12:58:47,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/1a6b53435/141fdcf3da6a422685620b38a2626a56 [2020-11-22 12:58:47,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:47,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:47,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:47,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:47,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:47,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7023b41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47, skipping insertion in model container [2020-11-22 12:58:47,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:47,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:47,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:47,921 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:47,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:47,975 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:47,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47 WrapperNode [2020-11-22 12:58:47,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:47,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:47,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:47,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:47,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:48,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:48,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:48,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:48,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:48,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:48,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:48,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:48,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:48,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/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 [2020-11-22 12:58:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:58:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 12:58:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:58:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 12:58:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:58:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:58:48,879 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:48,879 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:58:48,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:48 BoogieIcfgContainer [2020-11-22 12:58:48,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:48,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:48,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:48,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:48,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:47" (1/3) ... [2020-11-22 12:58:48,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4536d40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:48, skipping insertion in model container [2020-11-22 12:58:48,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (2/3) ... [2020-11-22 12:58:48,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4536d40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:48, skipping insertion in model container [2020-11-22 12:58:48,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:48" (3/3) ... [2020-11-22 12:58:48,889 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052a.c [2020-11-22 12:58:48,922 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:48,926 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:58:48,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:58:48,960 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:48,960 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:48,960 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:48,960 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:48,961 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:48,961 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:48,961 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:48,961 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:48,974 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-22 12:58:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 12:58:48,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:48,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:48,980 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:48,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:48,985 INFO L82 PathProgramCache]: Analyzing trace with hash 823484620, now seen corresponding path program 1 times [2020-11-22 12:58:48,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:48,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806116491] [2020-11-22 12:58:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:49,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806116491] [2020-11-22 12:58:49,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:49,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:58:49,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363971024] [2020-11-22 12:58:49,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:49,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:58:49,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:49,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:49,156 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-22 12:58:49,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:49,174 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-11-22 12:58:49,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:49,176 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 12:58:49,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:49,186 INFO L225 Difference]: With dead ends: 41 [2020-11-22 12:58:49,186 INFO L226 Difference]: Without dead ends: 19 [2020-11-22 12:58:49,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:49,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-22 12:58:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-22 12:58:49,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-22 12:58:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-11-22 12:58:49,223 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2020-11-22 12:58:49,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:49,224 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-22 12:58:49,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:49,224 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-22 12:58:49,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 12:58:49,225 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:49,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:49,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:58:49,226 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:49,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:49,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1728641533, now seen corresponding path program 1 times [2020-11-22 12:58:49,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:49,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649313581] [2020-11-22 12:58:49,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:49,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:49,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:49,497 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:58:49,497 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:58:49,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:58:49,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:49 BoogieIcfgContainer [2020-11-22 12:58:49,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:49,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:49,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:49,547 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:49,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:48" (3/4) ... [2020-11-22 12:58:49,550 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:58:49,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:49,554 INFO L168 Benchmark]: Toolchain (without parser) took 2001.97 ms. Allocated memory is still 130.0 MB. Free memory was 102.5 MB in the beginning and 81.7 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:49,554 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:49,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.49 ms. Allocated memory is still 130.0 MB. Free memory was 102.5 MB in the beginning and 105.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:49,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.34 ms. Allocated memory is still 130.0 MB. Free memory was 105.6 MB in the beginning and 103.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:49,558 INFO L168 Benchmark]: Boogie Preprocessor took 31.97 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 101.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:49,559 INFO L168 Benchmark]: RCFGBuilder took 815.94 ms. Allocated memory is still 130.0 MB. Free memory was 101.9 MB in the beginning and 59.5 MB in the end (delta: 42.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:49,559 INFO L168 Benchmark]: TraceAbstraction took 662.09 ms. Allocated memory is still 130.0 MB. Free memory was 59.0 MB in the beginning and 82.4 MB in the end (delta: -23.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:49,560 INFO L168 Benchmark]: Witness Printer took 4.82 ms. Allocated memory is still 130.0 MB. Free memory is still 81.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:49,569 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 90.2 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 419.49 ms. Allocated memory is still 130.0 MB. Free memory was 102.5 MB in the beginning and 105.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.34 ms. Allocated memory is still 130.0 MB. Free memory was 105.6 MB in the beginning and 103.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.97 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 101.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 815.94 ms. Allocated memory is still 130.0 MB. Free memory was 101.9 MB in the beginning and 59.5 MB in the end (delta: 42.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 662.09 ms. Allocated memory is still 130.0 MB. Free memory was 59.0 MB in the beginning and 82.4 MB in the end (delta: -23.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.82 ms. Allocated memory is still 130.0 MB. Free memory is still 81.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 91, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of bitwiseAnd at line 90. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L103] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L49] COND TRUE j0 > 51 [L50] COND FALSE !(j0 == 0x400) [L53] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] double res = floor_double(x); [L83] __int32_t hx, lx; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L85] ieee_double_shape_type ew_u; [L86] ew_u.value = (x) [L87] EXPR ew_u.parts.msw [L87] (hx) = ew_u.parts.msw [L88] EXPR ew_u.parts.lsw [L88] (lx) = ew_u.parts.lsw [L90] hx &= 0x7fffffff [L91] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L92] hx = 0x7ff00000 - hx [L93] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L107] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1052a.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:58:51,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:51,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:52,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:52,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:52,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:52,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:52,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:52,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:52,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:52,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:52,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:52,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:52,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:52,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:52,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:52,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:52,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:52,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:52,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:52,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:52,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:52,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:52,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:52,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:52,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:52,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:52,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:52,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:52,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:52,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:52,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:52,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:52,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:52,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:52,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:52,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:52,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:52,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:52,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:52,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:52,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:58:52,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:52,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:52,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:52,141 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:52,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:52,142 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:52,142 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:52,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:52,143 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:52,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:52,144 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:52,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:52,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:52,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:52,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:52,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:52,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:52,145 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:58:52,145 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:58:52,145 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:52,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:52,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:52,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:52,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:52,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:58:52,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:52,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:52,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:52,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:52,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:52,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:52,148 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:58:52,148 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:58:52,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:52,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:52,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:52,149 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-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48a71202a0e82b0e2ae39f845042f68e3a18e5b0 [2020-11-22 12:58:52,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:52,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:52,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:52,552 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:52,553 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:52,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-11-22 12:58:52,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/e22f41ca8/ce321d41ae9444f2965234bbbad800b2/FLAGdb29b71ba [2020-11-22 12:58:53,100 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:53,101 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/sv-benchmarks/c/float-newlib/double_req_bl_1052a.c [2020-11-22 12:58:53,116 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/e22f41ca8/ce321d41ae9444f2965234bbbad800b2/FLAGdb29b71ba [2020-11-22 12:58:53,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/data/e22f41ca8/ce321d41ae9444f2965234bbbad800b2 [2020-11-22 12:58:53,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:53,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:53,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:53,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:53,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:53,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45088fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53, skipping insertion in model container [2020-11-22 12:58:53,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:53,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:53,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:53,699 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:53,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:53,788 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:53,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53 WrapperNode [2020-11-22 12:58:53,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:53,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:53,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:53,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:53,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:53,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:53,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:53,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:53,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... [2020-11-22 12:58:53,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:53,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:53,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:53,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:53,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/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 [2020-11-22 12:58:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 12:58:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 12:58:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:58:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 12:58:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 12:58:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:58:55,894 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:55,895 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:58:55,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:55 BoogieIcfgContainer [2020-11-22 12:58:55,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:55,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:55,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:55,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:55,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:53" (1/3) ... [2020-11-22 12:58:55,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cc2274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:55, skipping insertion in model container [2020-11-22 12:58:55,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:53" (2/3) ... [2020-11-22 12:58:55,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cc2274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:55, skipping insertion in model container [2020-11-22 12:58:55,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:55" (3/3) ... [2020-11-22 12:58:55,907 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052a.c [2020-11-22 12:58:55,918 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:55,922 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:58:55,933 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:58:55,956 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:55,956 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:55,956 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:55,957 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:55,957 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:55,957 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:55,957 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:55,957 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-22 12:58:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 12:58:55,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:55,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:55,976 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:55,982 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-22 12:58:55,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:55,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328219399] [2020-11-22 12:58:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/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 [2020-11-22 12:58:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:56,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:58:56,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:56,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:56,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328219399] [2020-11-22 12:58:56,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:56,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:58:56,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071530395] [2020-11-22 12:58:56,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:56,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:56,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:56,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:56,177 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-22 12:58:56,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:56,196 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-22 12:58:56,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:56,197 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-22 12:58:56,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:56,207 INFO L225 Difference]: With dead ends: 73 [2020-11-22 12:58:56,207 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 12:58:56,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:56,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 12:58:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 12:58:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 12:58:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-22 12:58:56,254 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-22 12:58:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:56,254 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-22 12:58:56,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-22 12:58:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:58:56,255 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:56,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:56,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:58:56,470 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:56,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:56,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-22 12:58:56,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:56,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437749110] [2020-11-22 12:58:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:56,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 12:58:56,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:56,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:57,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437749110] [2020-11-22 12:58:57,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:57,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 12:58:57,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460393645] [2020-11-22 12:58:57,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:58:57,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:57,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:58:57,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:58:57,029 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-11-22 12:58:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:57,355 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-22 12:58:57,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:58:57,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-22 12:58:57,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:57,360 INFO L225 Difference]: With dead ends: 42 [2020-11-22 12:58:57,360 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 12:58:57,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:58:57,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 12:58:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 12:58:57,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 12:58:57,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-22 12:58:57,366 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-11-22 12:58:57,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:57,366 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-22 12:58:57,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:58:57,366 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-22 12:58:57,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:58:57,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:57,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:57,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:58:57,568 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:57,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:57,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-11-22 12:58:57,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:57,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656539621] [2020-11-22 12:58:57,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:57,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:58,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:58,157 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:58:58,158 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:58:58,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:58:58,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:58 BoogieIcfgContainer [2020-11-22 12:58:58,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:58,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:58,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:58,410 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:58,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:55" (3/4) ... [2020-11-22 12:58:58,412 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:58:58,499 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_192da3c4-b1be-4c05-8b89-dfedaca81324/bin/utaipan/witness.graphml [2020-11-22 12:58:58,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:58,510 INFO L168 Benchmark]: Toolchain (without parser) took 5022.12 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 48.8 MB in the beginning and 45.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:58,510 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:58,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.33 ms. Allocated memory is still 67.1 MB. Free memory was 48.5 MB in the beginning and 51.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:58,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 67.1 MB. Free memory was 50.8 MB in the beginning and 49.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:58,512 INFO L168 Benchmark]: Boogie Preprocessor took 69.74 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 47.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:58,512 INFO L168 Benchmark]: RCFGBuilder took 1986.34 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 47.1 MB in the beginning and 60.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:58,513 INFO L168 Benchmark]: TraceAbstraction took 2508.65 ms. Allocated memory is still 83.9 MB. Free memory was 60.5 MB in the beginning and 49.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:58,513 INFO L168 Benchmark]: Witness Printer took 90.68 ms. Allocated memory is still 83.9 MB. Free memory was 49.4 MB in the beginning and 45.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:58,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory is still 50.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.33 ms. Allocated memory is still 67.1 MB. Free memory was 48.5 MB in the beginning and 51.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 67.1 MB. Free memory was 50.8 MB in the beginning and 49.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.74 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 47.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1986.34 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 47.1 MB in the beginning and 60.9 MB in the end (delta: -13.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2508.65 ms. Allocated memory is still 83.9 MB. Free memory was 60.5 MB in the beginning and 49.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 90.68 ms. Allocated memory is still 83.9 MB. Free memory was 49.4 MB in the beginning and 45.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L49] COND TRUE j0 > 51 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 == 0x400 [L51] return x + x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] double res = floor_double(x); [L83] __int32_t hx, lx; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L85] ieee_double_shape_type ew_u; [L86] ew_u.value = (x) [L87] EXPR ew_u.parts.msw [L87] (hx) = ew_u.parts.msw [L88] EXPR ew_u.parts.lsw [L88] (lx) = ew_u.parts.lsw [L90] hx &= 0x7fffffff [L91] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L92] hx = 0x7ff00000 - hx [L93] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L107] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1052a.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 44 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2276 SizeOfPredicates, 8 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 proved your program to be incorrect! Received shutdown request...