./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.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_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/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 92378978a89ae01e3bc9e388811319081868cc5d ................................................................................................................................................................................................................................................................................................... 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_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/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 92378978a89ae01e3bc9e388811319081868cc5d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:08:45,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:45,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:45,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:45,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:45,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:45,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:45,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:45,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:45,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:45,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:45,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:45,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:45,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:45,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:45,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:45,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:45,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:45,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:45,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:45,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:45,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:45,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:45,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:45,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:45,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:45,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:45,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:45,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:45,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:45,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:45,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:45,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:45,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:45,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:45,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:45,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:45,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:45,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:45,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:45,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:45,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:45,331 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:45,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:45,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:45,336 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:45,336 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:45,337 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:45,337 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:45,337 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:45,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:45,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:45,339 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:45,339 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:45,340 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:45,340 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:45,340 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:45,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:45,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:45,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:45,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:45,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:45,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:45,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:45,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:45,343 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:45,343 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:45,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:45,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:45,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:45,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:45,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:45,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:45,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:45,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:45,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:45,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:45,348 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:45,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:45,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:45,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:45,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:45,349 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_0decabe2-b9cc-47cd-98b9-66c024a67803/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92378978a89ae01e3bc9e388811319081868cc5d [2020-11-22 13:08:45,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:45,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:45,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:45,660 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:45,666 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:45,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-11-22 13:08:45,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/42125c78e/449ec06edc924a8389e68722066b615d/FLAG46eb5360e [2020-11-22 13:08:46,247 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:46,248 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-11-22 13:08:46,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/42125c78e/449ec06edc924a8389e68722066b615d/FLAG46eb5360e [2020-11-22 13:08:46,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/42125c78e/449ec06edc924a8389e68722066b615d [2020-11-22 13:08:46,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:46,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:46,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:46,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:46,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:46,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6023f689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46, skipping insertion in model container [2020-11-22 13:08:46,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:46,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:46,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:46,851 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:46,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:46,890 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:46,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46 WrapperNode [2020-11-22 13:08:46,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:46,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:46,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:46,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:46,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:46,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:46,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:46,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:46,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... [2020-11-22 13:08:46,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:46,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:46,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:46,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:46,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/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 13:08:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:08:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 13:08:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:08:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:08:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:47,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:08:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:08:47,470 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:47,471 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-22 13:08:47,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:47 BoogieIcfgContainer [2020-11-22 13:08:47,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:47,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:47,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:47,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:47,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:46" (1/3) ... [2020-11-22 13:08:47,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c8c205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:47, skipping insertion in model container [2020-11-22 13:08:47,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:46" (2/3) ... [2020-11-22 13:08:47,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c8c205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:47, skipping insertion in model container [2020-11-22 13:08:47,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:47" (3/3) ... [2020-11-22 13:08:47,482 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2020-11-22 13:08:47,494 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:47,498 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:08:47,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:08:47,532 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:47,532 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:47,532 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:47,532 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:47,533 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:47,533 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:47,533 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:47,533 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-22 13:08:47,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:08:47,551 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:47,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:47,552 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:47,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:47,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1606965672, now seen corresponding path program 1 times [2020-11-22 13:08:47,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:47,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657855932] [2020-11-22 13:08:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:47,698 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 13:08:47,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657855932] [2020-11-22 13:08:47,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:47,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:08:47,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577955429] [2020-11-22 13:08:47,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:47,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:08:47,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:47,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:47,720 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-11-22 13:08:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:47,736 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2020-11-22 13:08:47,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:47,737 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-22 13:08:47,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:47,745 INFO L225 Difference]: With dead ends: 31 [2020-11-22 13:08:47,745 INFO L226 Difference]: Without dead ends: 14 [2020-11-22 13:08:47,748 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 13:08:47,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-22 13:08:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-22 13:08:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-22 13:08:47,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-11-22 13:08:47,779 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2020-11-22 13:08:47,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:47,780 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-11-22 13:08:47,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:47,780 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-22 13:08:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:08:47,781 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:47,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:47,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:08:47,782 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:47,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:47,783 INFO L82 PathProgramCache]: Analyzing trace with hash 453405155, now seen corresponding path program 1 times [2020-11-22 13:08:47,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:47,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918129161] [2020-11-22 13:08:47,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:47,871 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:47,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:47,963 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:08:47,963 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:47,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:08:47,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:47 BoogieIcfgContainer [2020-11-22 13:08:47,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:47,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:47,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:47,988 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:47,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:47" (3/4) ... [2020-11-22 13:08:47,991 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:08:47,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:47,994 INFO L168 Benchmark]: Toolchain (without parser) took 1357.01 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.2 MB in the beginning and 43.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:47,995 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 64.0 MB in the beginning and 64.0 MB in the end (delta: 24.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:47,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.33 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.9 MB in the beginning and 87.6 MB in the end (delta: -28.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:47,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:47,998 INFO L168 Benchmark]: Boogie Preprocessor took 27.67 ms. Allocated memory is still 111.1 MB. Free memory was 86.4 MB in the beginning and 84.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:47,998 INFO L168 Benchmark]: RCFGBuilder took 514.20 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 65.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:47,999 INFO L168 Benchmark]: TraceAbstraction took 512.17 ms. Allocated memory is still 111.1 MB. Free memory was 65.0 MB in the beginning and 43.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:48,000 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 111.1 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:48,004 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 64.0 MB in the beginning and 64.0 MB in the end (delta: 24.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.33 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.9 MB in the beginning and 87.6 MB in the end (delta: -28.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.67 ms. Allocated memory is still 111.1 MB. Free memory was 86.4 MB in the beginning and 84.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 514.20 ms. Allocated memory is still 111.1 MB. Free memory was 84.9 MB in the beginning and 65.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 512.17 ms. Allocated memory is still 111.1 MB. Free memory was 65.0 MB in the beginning and 43.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.54 ms. Allocated memory is still 111.1 MB. Free memory is still 43.0 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 someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 24. Possible FailurePath: [L67] float x = 0.0f / 0.0f; [L14] __uint32_t w; [L16] int exponent_less_127; [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (w) = gf_u.word [L24] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L26] COND FALSE !(exponent_less_127 < 23) [L42] COND FALSE !(exponent_less_127 == 128) [L46] return x; [L68] float res = round_float(x); [L57] return x != x; [L71] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1031.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 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=16occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 13:08:50,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:50,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:50,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:50,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:50,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:50,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:50,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:50,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:50,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:50,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:50,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:50,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:50,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:50,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:50,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:50,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:50,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:50,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:50,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:50,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:50,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:50,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:50,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:50,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:50,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:50,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:50,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:50,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:50,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:50,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:50,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:50,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:50,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:50,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:50,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:50,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:50,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:50,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:50,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:50,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:50,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:50,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:50,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:50,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:50,645 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:50,646 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:50,646 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:50,646 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:50,646 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:50,647 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:50,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:50,648 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:50,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:50,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:50,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:50,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:50,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:50,649 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:50,650 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:50,650 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:50,650 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:50,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:50,651 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:50,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:50,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:50,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:50,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:50,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:50,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:50,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:50,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:50,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:50,653 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:50,653 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:50,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:50,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:50,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:50,654 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_0decabe2-b9cc-47cd-98b9-66c024a67803/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92378978a89ae01e3bc9e388811319081868cc5d [2020-11-22 13:08:51,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:51,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:51,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:51,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:51,059 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:51,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-11-22 13:08:51,137 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/1040919e9/41724dd2e6e84e18a43337eb83ae8495/FLAGade9235b3 [2020-11-22 13:08:51,733 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:51,734 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-11-22 13:08:51,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/1040919e9/41724dd2e6e84e18a43337eb83ae8495/FLAGade9235b3 [2020-11-22 13:08:52,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/data/1040919e9/41724dd2e6e84e18a43337eb83ae8495 [2020-11-22 13:08:52,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:52,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:52,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:52,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:52,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:52,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b34d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52, skipping insertion in model container [2020-11-22 13:08:52,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:52,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:52,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:52,313 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:52,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:52,363 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:52,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52 WrapperNode [2020-11-22 13:08:52,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:52,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:52,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:52,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:52,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:52,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:52,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:52,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:52,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... [2020-11-22 13:08:52,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:52,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:52,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:52,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:52,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/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 13:08:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:08:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-22 13:08:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:08:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-22 13:08:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:08:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:08:53,076 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:53,077 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-22 13:08:53,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:53 BoogieIcfgContainer [2020-11-22 13:08:53,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:53,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:53,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:53,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:53,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:52" (1/3) ... [2020-11-22 13:08:53,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d624bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:53, skipping insertion in model container [2020-11-22 13:08:53,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:52" (2/3) ... [2020-11-22 13:08:53,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d624bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:53, skipping insertion in model container [2020-11-22 13:08:53,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:53" (3/3) ... [2020-11-22 13:08:53,090 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2020-11-22 13:08:53,100 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:53,105 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:08:53,115 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:08:53,150 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:53,150 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:53,150 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:53,151 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:53,151 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:53,151 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:53,151 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:53,151 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:53,165 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-22 13:08:53,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:08:53,171 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:53,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:53,172 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:53,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:53,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2020-11-22 13:08:53,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:53,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954683278] [2020-11-22 13:08:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/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 13:08:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:53,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:08:53,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:53,351 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 13:08:53,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:53,355 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 13:08:53,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954683278] [2020-11-22 13:08:53,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:53,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:08:53,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519677977] [2020-11-22 13:08:53,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:08:53,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:53,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:08:53,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:08:53,382 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-11-22 13:08:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:53,398 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions. [2020-11-22 13:08:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:08:53,399 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 13:08:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:53,408 INFO L225 Difference]: With dead ends: 41 [2020-11-22 13:08:53,408 INFO L226 Difference]: Without dead ends: 18 [2020-11-22 13:08:53,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 13:08:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-22 13:08:53,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-22 13:08:53,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-22 13:08:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-11-22 13:08:53,442 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2020-11-22 13:08:53,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:53,443 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-11-22 13:08:53,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:08:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-22 13:08:53,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:08:53,444 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:53,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:53,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:08:53,668 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:53,670 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2020-11-22 13:08:53,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:53,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068074445] [2020-11-22 13:08:53,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/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 13:08:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:53,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-22 13:08:53,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:53,895 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 13:08:53,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:54,324 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 13:08:54,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068074445] [2020-11-22 13:08:54,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:54,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 13:08:54,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702228502] [2020-11-22 13:08:54,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:08:54,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:54,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:08:54,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:08:54,328 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 10 states. [2020-11-22 13:08:54,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:54,793 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-11-22 13:08:54,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:08:54,793 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-22 13:08:54,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:54,794 INFO L225 Difference]: With dead ends: 23 [2020-11-22 13:08:54,794 INFO L226 Difference]: Without dead ends: 17 [2020-11-22 13:08:54,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:08:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-22 13:08:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-22 13:08:54,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-22 13:08:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-22 13:08:54,799 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2020-11-22 13:08:54,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:54,799 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-22 13:08:54,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:08:54,799 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-22 13:08:54,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:08:54,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:54,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:55,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:08:55,018 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:55,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:55,019 INFO L82 PathProgramCache]: Analyzing trace with hash 812423977, now seen corresponding path program 1 times [2020-11-22 13:08:55,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:55,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636426092] [2020-11-22 13:08:55,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/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 13:08:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:55,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:08:55,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:55,232 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 13:08:55,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:55,360 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 13:08:55,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636426092] [2020-11-22 13:08:55,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:55,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 13:08:55,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600674148] [2020-11-22 13:08:55,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:08:55,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:55,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:08:55,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:08:55,363 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 8 states. [2020-11-22 13:08:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:55,539 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-22 13:08:55,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:08:55,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-22 13:08:55,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:55,540 INFO L225 Difference]: With dead ends: 17 [2020-11-22 13:08:55,540 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:08:55,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:08:55,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:08:55,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:08:55,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:08:55,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:08:55,541 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-22 13:08:55,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:55,541 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:08:55,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:08:55,541 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:08:55,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:08:55,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:08:55,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:08:55,855 INFO L274 CegarLoopResult]: For program point L27(lines 27 40) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point L48(lines 48 52) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:08:55,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:08:55,857 INFO L270 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_round_float_~x) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_round_float_#res|)) [2020-11-22 13:08:55,857 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:08:55,857 INFO L270 CegarLoopResult]: At program point L53(lines 13 54) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_round_float_~x) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_round_float_#res|)) [2020-11-22 13:08:55,857 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:08:55,857 INFO L274 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-11-22 13:08:55,857 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-22 13:08:55,857 INFO L274 CegarLoopResult]: For program point L71(lines 71 74) no Hoare annotation was computed. [2020-11-22 13:08:55,857 INFO L274 CegarLoopResult]: For program point L34(lines 34 36) no Hoare annotation was computed. [2020-11-22 13:08:55,858 INFO L274 CegarLoopResult]: For program point L26(lines 26 47) no Hoare annotation was computed. [2020-11-22 13:08:55,858 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-22 13:08:55,858 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_round_float_~x))) [2020-11-22 13:08:55,858 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-22 13:08:55,858 INFO L277 CegarLoopResult]: At program point L76(lines 59 77) the Hoare annotation is: true [2020-11-22 13:08:55,866 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,867 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,873 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,879 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,880 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:08:55,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,880 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,880 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:08:55,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,881 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,882 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,882 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,882 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:55 BoogieIcfgContainer [2020-11-22 13:08:55,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:55,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:55,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:55,888 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:55,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:53" (3/4) ... [2020-11-22 13:08:55,891 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:08:55,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-22 13:08:55,905 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-22 13:08:55,905 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:08:55,906 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:08:55,932 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-11-22 13:08:55,932 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result [2020-11-22 13:08:55,933 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result [2020-11-22 13:08:55,966 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0decabe2-b9cc-47cd-98b9-66c024a67803/bin/utaipan/witness.graphml [2020-11-22 13:08:55,967 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:55,969 INFO L168 Benchmark]: Toolchain (without parser) took 3872.83 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 29.5 MB in the beginning and 25.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:55,969 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 46.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:55,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.72 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 32.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:55,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.01 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 32.4 MB in the beginning and 46.1 MB in the end (delta: -13.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:55,972 INFO L168 Benchmark]: Boogie Preprocessor took 54.03 ms. Allocated memory is still 62.9 MB. Free memory was 46.1 MB in the beginning and 44.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:55,973 INFO L168 Benchmark]: RCFGBuilder took 595.15 ms. Allocated memory is still 62.9 MB. Free memory was 44.4 MB in the beginning and 44.0 MB in the end (delta: 408.5 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:55,974 INFO L168 Benchmark]: TraceAbstraction took 2807.11 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.6 MB in the beginning and 28.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:55,978 INFO L168 Benchmark]: Witness Printer took 79.73 ms. Allocated memory is still 75.5 MB. Free memory was 28.1 MB in the beginning and 25.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:55,983 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 52.4 MB. Free memory was 34.6 MB in the beginning and 34.6 MB in the end (delta: 46.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.72 ms. Allocated memory is still 52.4 MB. Free memory was 29.3 MB in the beginning and 32.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.01 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 32.4 MB in the beginning and 46.1 MB in the end (delta: -13.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.03 ms. Allocated memory is still 62.9 MB. Free memory was 46.1 MB in the beginning and 44.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 595.15 ms. Allocated memory is still 62.9 MB. Free memory was 44.4 MB in the beginning and 44.0 MB in the end (delta: 408.5 kB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2807.11 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.6 MB in the beginning and 28.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * Witness Printer took 79.73 ms. Allocated memory is still 75.5 MB. Free memory was 28.1 MB in the beginning and 25.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant [2020-11-22 13:08:55,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,995 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:55,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 18]: Loop Invariant [2020-11-22 13:08:55,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:55,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:08:56,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:56,001 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,001 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:08:56,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant [2020-11-22 13:08:56,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,016 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:56,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:56,017 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,017 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,018 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,018 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:56,018 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:56,018 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 31 SDslu, 74 SDs, 0 SdLazy, 44 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 59 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 5 QuantifiedInterpolants, 3560 SizeOfPredicates, 17 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 correct! Received shutdown request...