./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c.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_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/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 dc0a2ba7c478f7aa42412993fd58e9bd96a2d03f ................................................................................................................................................................................................................................................................................................................ 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_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/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 dc0a2ba7c478f7aa42412993fd58e9bd96a2d03f ................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 01:46:37,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:46:37,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:46:37,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:46:37,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:46:37,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:46:37,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:46:37,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:46:37,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:46:37,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:46:37,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:46:37,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:46:37,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:46:37,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:46:37,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:46:37,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:46:37,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:46:37,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:46:37,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:46:37,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:46:37,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:46:37,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:46:37,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:46:37,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:46:37,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:46:37,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:46:37,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:46:37,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:46:37,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:46:37,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:46:37,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:46:37,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:46:37,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:46:37,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:46:37,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:46:37,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:46:37,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:46:37,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:46:37,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:46:37,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:46:37,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:46:37,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:46:37,336 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:46:37,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:46:37,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:46:37,338 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:46:37,339 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:46:37,339 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:46:37,339 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:46:37,339 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:46:37,340 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:46:37,340 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:46:37,340 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:46:37,340 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:46:37,341 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:46:37,341 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:46:37,341 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:46:37,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:46:37,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:46:37,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:46:37,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:46:37,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:46:37,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:46:37,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:46:37,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:46:37,344 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:46:37,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:46:37,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:46:37,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:46:37,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:46:37,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:46:37,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:46:37,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:46:37,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:46:37,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:46:37,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:46:37,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:46:37,348 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:46:37,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:46:37,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:46:37,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:46:37,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:46:37,349 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_d8e0db87-bc3e-46d1-b796-f06708df260d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0a2ba7c478f7aa42412993fd58e9bd96a2d03f [2020-11-30 01:46:37,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:46:37,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:46:37,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:46:37,720 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:46:37,728 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:46:37,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2020-11-30 01:46:37,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/0d4ab7002/e7f15f08559a41e3a4a0b4e7d0f933f9/FLAG36a021ce6 [2020-11-30 01:46:38,413 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:46:38,414 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2020-11-30 01:46:38,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/0d4ab7002/e7f15f08559a41e3a4a0b4e7d0f933f9/FLAG36a021ce6 [2020-11-30 01:46:38,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/0d4ab7002/e7f15f08559a41e3a4a0b4e7d0f933f9 [2020-11-30 01:46:38,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:46:38,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:46:38,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:46:38,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:46:38,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:46:38,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:46:38" (1/1) ... [2020-11-30 01:46:38,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e58253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:38, skipping insertion in model container [2020-11-30 01:46:38,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:46:38" (1/1) ... [2020-11-30 01:46:38,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:46:38,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:46:39,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:46:39,062 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:46:39,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:46:39,160 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:46:39,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39 WrapperNode [2020-11-30 01:46:39,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:46:39,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:46:39,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:46:39,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:46:39,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:46:39,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:46:39,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:46:39,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:46:39,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... [2020-11-30 01:46:39,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:46:39,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:46:39,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:46:39,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:46:39,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/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 [2020-11-30 01:46:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:46:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:46:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:46:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:46:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:46:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:46:39,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:46:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:46:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:46:40,158 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:46:40,158 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:46:40,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:40 BoogieIcfgContainer [2020-11-30 01:46:40,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:46:40,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:46:40,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:46:40,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:46:40,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:46:38" (1/3) ... [2020-11-30 01:46:40,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edc676d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:46:40, skipping insertion in model container [2020-11-30 01:46:40,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:39" (2/3) ... [2020-11-30 01:46:40,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edc676d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:46:40, skipping insertion in model container [2020-11-30 01:46:40,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:40" (3/3) ... [2020-11-30 01:46:40,170 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2020-11-30 01:46:40,181 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:46:40,186 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:46:40,197 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:46:40,224 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:46:40,224 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:46:40,224 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:46:40,224 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:46:40,224 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:46:40,225 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:46:40,225 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:46:40,225 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:46:40,239 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-30 01:46:40,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:46:40,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:46:40,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:46:40,247 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:46:40,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:46:40,254 INFO L82 PathProgramCache]: Analyzing trace with hash 488328523, now seen corresponding path program 1 times [2020-11-30 01:46:40,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:46:40,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544619095] [2020-11-30 01:46:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:46:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:46:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:40,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544619095] [2020-11-30 01:46:40,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:46:40,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:46:40,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8289212] [2020-11-30 01:46:40,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:46:40,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:46:40,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:46:40,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:46:40,442 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-30 01:46:40,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:46:40,465 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2020-11-30 01:46:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:46:40,468 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 01:46:40,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:46:40,493 INFO L225 Difference]: With dead ends: 41 [2020-11-30 01:46:40,493 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 01:46:40,504 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 [2020-11-30 01:46:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 01:46:40,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 01:46:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 01:46:40,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-11-30 01:46:40,554 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2020-11-30 01:46:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:46:40,555 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-30 01:46:40,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:46:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-30 01:46:40,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:46:40,557 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:46:40,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:46:40,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:46:40,557 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:46:40,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:46:40,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1034469516, now seen corresponding path program 1 times [2020-11-30 01:46:40,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:46:40,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340154879] [2020-11-30 01:46:40,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:46:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:46:40,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:46:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:46:40,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:46:40,993 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:46:40,993 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:46:40,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:46:41,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:46:41 BoogieIcfgContainer [2020-11-30 01:46:41,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:46:41,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:46:41,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:46:41,054 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:46:41,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:40" (3/4) ... [2020-11-30 01:46:41,058 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:46:41,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:46:41,063 INFO L168 Benchmark]: Toolchain (without parser) took 2344.92 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 55.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:41,064 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 86.0 MB. Free memory was 58.2 MB in the beginning and 58.2 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:46:41,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.35 ms. Allocated memory is still 86.0 MB. Free memory was 53.5 MB in the beginning and 62.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:41,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.03 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 60.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:41,069 INFO L168 Benchmark]: Boogie Preprocessor took 62.63 ms. Allocated memory is still 86.0 MB. Free memory was 60.6 MB in the beginning and 59.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:46:41,071 INFO L168 Benchmark]: RCFGBuilder took 881.97 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 59.1 MB in the beginning and 82.4 MB in the end (delta: -23.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:41,072 INFO L168 Benchmark]: TraceAbstraction took 887.65 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 55.2 MB in the end (delta: 26.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:41,073 INFO L168 Benchmark]: Witness Printer took 8.01 ms. Allocated memory is still 104.9 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:46:41,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 86.0 MB. Free memory was 58.2 MB in the beginning and 58.2 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 444.35 ms. Allocated memory is still 86.0 MB. Free memory was 53.5 MB in the beginning and 62.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.03 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 60.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.63 ms. Allocated memory is still 86.0 MB. Free memory was 60.6 MB in the beginning and 59.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 881.97 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 59.1 MB in the beginning and 82.4 MB in the end (delta: -23.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 887.65 ms. Allocated memory is still 104.9 MB. Free memory was 82.0 MB in the beginning and 55.2 MB in the end (delta: 26.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 8.01 ms. Allocated memory is still 104.9 MB. Free memory is still 55.2 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 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 74. Possible FailurePath: [L88] double x = 1.0 / 0.0; [L17] __int32_t msw, exponent_less_1023; [L18] __uint32_t lsw; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (msw) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (lsw) = ew_u.parts.lsw [L25] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L26] COND FALSE !(exponent_less_1023 < 20) [L40] COND TRUE exponent_less_1023 > 51 [L41] COND TRUE exponent_less_1023 == 1024 [L42] return x + x; [L89] double res = round_double(x); [L67] __int32_t hx, lx; [L69] ieee_double_shape_type ew_u; [L70] ew_u.value = (x) [L71] EXPR ew_u.parts.msw [L71] (hx) = ew_u.parts.msw [L72] EXPR ew_u.parts.lsw [L72] (lx) = ew_u.parts.lsw [L74] hx &= 0x7fffffff [L75] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L76] hx = 0x7ff00000 - hx [L77] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L92] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1032c.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, 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, 0.2s 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 [2020-11-30 01:46:44,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:46:44,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:46:44,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:46:44,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:46:44,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:46:44,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:46:44,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:46:44,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:46:44,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:46:44,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:46:44,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:46:44,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:46:44,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:46:44,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:46:44,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:46:44,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:46:44,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:46:44,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:46:44,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:46:44,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:46:44,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:46:44,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:46:44,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:46:44,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:46:44,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:46:44,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:46:44,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:46:44,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:46:44,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:46:44,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:46:44,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:46:44,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:46:44,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:46:44,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:46:44,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:46:44,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:46:44,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:46:44,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:46:44,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:46:44,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:46:44,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:46:44,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:46:44,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:46:44,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:46:44,287 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:46:44,288 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:46:44,288 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:46:44,288 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:46:44,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:46:44,289 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:46:44,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:46:44,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:46:44,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:46:44,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:46:44,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:46:44,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:46:44,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:46:44,294 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:46:44,294 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:46:44,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:46:44,295 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:46:44,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:46:44,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:46:44,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:46:44,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:46:44,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:46:44,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:46:44,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:46:44,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:46:44,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:46:44,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:46:44,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:46:44,298 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:46:44,298 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:46:44,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:46:44,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:46:44,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:46:44,300 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_d8e0db87-bc3e-46d1-b796-f06708df260d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0a2ba7c478f7aa42412993fd58e9bd96a2d03f [2020-11-30 01:46:44,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:46:44,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:46:44,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:46:44,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:46:44,810 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:46:44,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2020-11-30 01:46:44,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/dbb615bb0/157522941b4c496eb78ee89eec979303/FLAG89447dbb5 [2020-11-30 01:46:45,560 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:46:45,565 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2020-11-30 01:46:45,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/dbb615bb0/157522941b4c496eb78ee89eec979303/FLAG89447dbb5 [2020-11-30 01:46:45,861 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/data/dbb615bb0/157522941b4c496eb78ee89eec979303 [2020-11-30 01:46:45,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:46:45,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:46:45,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:46:45,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:46:45,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:46:45,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:46:45" (1/1) ... [2020-11-30 01:46:45,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b72fa18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:45, skipping insertion in model container [2020-11-30 01:46:45,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:46:45" (1/1) ... [2020-11-30 01:46:45,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:46:45,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:46:46,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:46:46,155 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:46:46,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:46:46,277 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:46:46,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46 WrapperNode [2020-11-30 01:46:46,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:46:46,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:46:46,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:46:46,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:46:46,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:46:46,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:46:46,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:46:46,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:46:46,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... [2020-11-30 01:46:46,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:46:46,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:46:46,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:46:46,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:46:46,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/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 [2020-11-30 01:46:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 01:46:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 01:46:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:46:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:46:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:46:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:46:46,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:46:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:46:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:46:47,503 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:46:47,503 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:46:47,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:47 BoogieIcfgContainer [2020-11-30 01:46:47,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:46:47,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:46:47,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:46:47,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:46:47,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:46:45" (1/3) ... [2020-11-30 01:46:47,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7370928e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:46:47, skipping insertion in model container [2020-11-30 01:46:47,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:46" (2/3) ... [2020-11-30 01:46:47,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7370928e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:46:47, skipping insertion in model container [2020-11-30 01:46:47,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:47" (3/3) ... [2020-11-30 01:46:47,518 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2020-11-30 01:46:47,528 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:46:47,532 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:46:47,544 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:46:47,569 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:46:47,570 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:46:47,570 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:46:47,570 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:46:47,570 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:46:47,570 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:46:47,570 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:46:47,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:46:47,587 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 01:46:47,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:46:47,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:46:47,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:46:47,594 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:46:47,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:46:47,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1058195810, now seen corresponding path program 1 times [2020-11-30 01:46:47,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:46:47,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805513184] [2020-11-30 01:46:47,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/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 [2020-11-30 01:46:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:46:47,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:46:47,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:46:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:47,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:46:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:47,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805513184] [2020-11-30 01:46:47,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:46:47,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:46:47,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924118090] [2020-11-30 01:46:47,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:46:47,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:46:47,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:46:47,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:46:47,859 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-30 01:46:47,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:46:47,880 INFO L93 Difference]: Finished difference Result 57 states and 85 transitions. [2020-11-30 01:46:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:46:47,882 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-30 01:46:47,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:46:47,892 INFO L225 Difference]: With dead ends: 57 [2020-11-30 01:46:47,892 INFO L226 Difference]: Without dead ends: 26 [2020-11-30 01:46:47,895 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 [2020-11-30 01:46:47,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-30 01:46:47,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-30 01:46:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 01:46:47,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-11-30 01:46:47,935 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 13 [2020-11-30 01:46:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:46:47,936 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-30 01:46:47,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:46:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-11-30 01:46:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:46:47,937 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:46:47,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:46:48,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:46:48,152 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:46:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:46:48,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1055488069, now seen corresponding path program 1 times [2020-11-30 01:46:48,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:46:48,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086426358] [2020-11-30 01:46:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/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 [2020-11-30 01:46:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:46:48,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:46:48,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:46:48,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:48,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:46:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:48,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086426358] [2020-11-30 01:46:48,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:46:48,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:46:48,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944810700] [2020-11-30 01:46:48,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:46:48,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:46:48,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:46:48,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:46:48,837 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 8 states. [2020-11-30 01:46:49,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:46:49,215 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2020-11-30 01:46:49,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:46:49,219 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-30 01:46:49,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:46:49,221 INFO L225 Difference]: With dead ends: 34 [2020-11-30 01:46:49,221 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 01:46:49,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:46:49,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 01:46:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 01:46:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 01:46:49,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-30 01:46:49,238 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-11-30 01:46:49,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:46:49,239 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-30 01:46:49,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:46:49,239 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-30 01:46:49,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:46:49,240 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:46:49,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:46:49,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:46:49,441 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:46:49,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:46:49,442 INFO L82 PathProgramCache]: Analyzing trace with hash 709099857, now seen corresponding path program 1 times [2020-11-30 01:46:49,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:46:49,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227400815] [2020-11-30 01:46:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/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 [2020-11-30 01:46:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:46:49,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:46:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:46:49,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:46:50,028 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-30 01:46:50,028 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:46:50,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:46:50,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:46:50 BoogieIcfgContainer [2020-11-30 01:46:50,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:46:50,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:46:50,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:46:50,281 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:46:50,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:47" (3/4) ... [2020-11-30 01:46:50,284 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:46:50,350 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d8e0db87-bc3e-46d1-b796-f06708df260d/bin/utaipan/witness.graphml [2020-11-30 01:46:50,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:46:50,352 INFO L168 Benchmark]: Toolchain (without parser) took 4484.33 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 43.2 MB in the beginning and 47.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:50,353 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 44.3 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:46:50,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.93 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:50,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.67 ms. Allocated memory is still 62.9 MB. Free memory was 45.9 MB in the beginning and 44.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:50,356 INFO L168 Benchmark]: Boogie Preprocessor took 85.40 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:50,357 INFO L168 Benchmark]: RCFGBuilder took 1037.62 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 39.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:50,357 INFO L168 Benchmark]: TraceAbstraction took 2768.12 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 39.1 MB in the beginning and 49.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:50,358 INFO L168 Benchmark]: Witness Printer took 70.73 ms. Allocated memory is still 92.3 MB. Free memory was 49.7 MB in the beginning and 47.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:50,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 44.3 MB in the end (delta: 32.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 409.93 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.67 ms. Allocated memory is still 62.9 MB. Free memory was 45.9 MB in the beginning and 44.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.40 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1037.62 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 39.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2768.12 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 39.1 MB in the beginning and 49.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 70.73 ms. Allocated memory is still 92.3 MB. Free memory was 49.7 MB in the beginning and 47.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 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: [L88] double x = 1.0 / 0.0; [L17] __int32_t msw, exponent_less_1023; [L18] __uint32_t lsw; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (msw) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (lsw) = ew_u.parts.lsw [L25] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L26] COND FALSE !(exponent_less_1023 < 20) [L40] COND TRUE exponent_less_1023 > 51 [L41] COND TRUE exponent_less_1023 == 1024 [L42] return x + x; [L89] double res = round_double(x); [L67] __int32_t hx, lx; [L69] ieee_double_shape_type ew_u; [L70] ew_u.value = (x) [L71] EXPR ew_u.parts.msw [L71] (hx) = ew_u.parts.msw [L72] EXPR ew_u.parts.lsw [L72] (lx) = ew_u.parts.lsw [L74] hx &= 0x7fffffff [L75] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L76] hx = 0x7ff00000 - hx [L77] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L92] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1032c.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 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, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 0.5s 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...