./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/Rump_float.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_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/Rump_float.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/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 14bbb74942280ceabf9fcd57c23c432d4c6462f0 ............................................................................................................................................................................................................................................... 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_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/Rump_float.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/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 14bbb74942280ceabf9fcd57c23c432d4c6462f0 ......................................................................................................................................................................................................................................................................................... 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 13:05:46,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:46,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:46,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:46,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:46,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:46,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:46,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:46,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:46,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:46,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:46,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:46,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:46,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:46,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:46,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:46,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:46,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:46,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:46,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:46,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:46,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:46,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:46,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:46,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:46,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:46,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:46,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:46,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:46,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:46,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:46,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:46,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:46,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:46,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:46,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:46,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:46,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:46,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:46,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:46,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:46,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:46,356 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:46,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:46,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:46,358 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:46,358 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:46,358 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:46,359 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:46,359 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:46,359 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:46,359 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:46,360 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:46,361 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:46,361 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:46,361 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:46,361 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:46,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:46,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:46,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:46,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:46,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:46,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:46,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:46,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:46,364 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:46,364 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:46,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:46,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:46,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:46,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:46,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:46,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:46,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:46,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:46,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:46,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:46,368 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:46,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:46,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:46,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:46,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:46,369 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_0699cadf-abb9-43b9-8be7-7808e5946d8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2020-11-22 13:05:46,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:46,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:46,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:46,703 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:46,705 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:46,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/../../sv-benchmarks/c/float-benchs/Rump_float.c [2020-11-22 13:05:46,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/0125d6b81/825afb2fd8df4310b3a7ecb88956e628/FLAG945f6c6de [2020-11-22 13:05:47,302 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:47,303 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/sv-benchmarks/c/float-benchs/Rump_float.c [2020-11-22 13:05:47,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/0125d6b81/825afb2fd8df4310b3a7ecb88956e628/FLAG945f6c6de [2020-11-22 13:05:47,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/0125d6b81/825afb2fd8df4310b3a7ecb88956e628 [2020-11-22 13:05:47,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:47,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:47,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:47,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:47,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:47,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b925173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47, skipping insertion in model container [2020-11-22 13:05:47,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:47,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:47,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:47,914 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:47,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:47,943 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:47,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47 WrapperNode [2020-11-22 13:05:47,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:47,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:47,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:47,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:47,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:47,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:47,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:47,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:47,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... [2020-11-22 13:05:47,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:47,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:47,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:47,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:47,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/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 13:05:48,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:48,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:05:48,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:48,319 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:48,319 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-22 13:05:48,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:48 BoogieIcfgContainer [2020-11-22 13:05:48,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:48,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:48,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:48,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:48,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:47" (1/3) ... [2020-11-22 13:05:48,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db36c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:48, skipping insertion in model container [2020-11-22 13:05:48,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:47" (2/3) ... [2020-11-22 13:05:48,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db36c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:48, skipping insertion in model container [2020-11-22 13:05:48,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:48" (3/3) ... [2020-11-22 13:05:48,330 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2020-11-22 13:05:48,342 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:48,346 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:05:48,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:05:48,377 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:48,377 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:48,378 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:48,378 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:48,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:48,378 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:48,378 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:48,378 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:48,390 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-22 13:05:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-22 13:05:48,394 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:48,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-22 13:05:48,395 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:48,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:48,400 INFO L82 PathProgramCache]: Analyzing trace with hash 48212, now seen corresponding path program 1 times [2020-11-22 13:05:48,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:48,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048417647] [2020-11-22 13:05:48,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:48,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:48,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:48,542 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:05:48,543 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:05:48,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:05:48,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:48 BoogieIcfgContainer [2020-11-22 13:05:48,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:48,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:48,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:48,561 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:48,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:48" (3/4) ... [2020-11-22 13:05:48,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:05:48,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:48,566 INFO L168 Benchmark]: Toolchain (without parser) took 871.86 ms. Allocated memory is still 86.0 MB. Free memory was 54.8 MB in the beginning and 37.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:48,567 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:48,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.98 ms. Allocated memory is still 86.0 MB. Free memory was 54.6 MB in the beginning and 64.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:48,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 86.0 MB. Free memory was 64.4 MB in the beginning and 63.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:48,571 INFO L168 Benchmark]: Boogie Preprocessor took 17.90 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 62.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:48,571 INFO L168 Benchmark]: RCFGBuilder took 326.53 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 50.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:48,572 INFO L168 Benchmark]: TraceAbstraction took 237.34 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 38.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:48,573 INFO L168 Benchmark]: Witness Printer took 3.61 ms. Allocated memory is still 86.0 MB. Free memory was 38.0 MB in the beginning and 37.6 MB in the end (delta: 362.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:48,577 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 86.0 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.98 ms. Allocated memory is still 86.0 MB. Free memory was 54.6 MB in the beginning and 64.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.46 ms. Allocated memory is still 86.0 MB. Free memory was 64.4 MB in the beginning and 63.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.90 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 62.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 326.53 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 50.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 237.34 ms. Allocated memory is still 86.0 MB. Free memory was 49.8 MB in the beginning and 38.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.61 ms. Allocated memory is still 86.0 MB. Free memory was 38.0 MB in the beginning and 37.6 MB in the end (delta: 362.7 kB). 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x,y,r; [L11] x = 77617.f [L12] y = 33096.f [L13] r = 333.75f * y*y*y*y*y*y + x*x * (11.0f * x*x*y*y - y*y*y*y*y*y - 121.0f * y*y*y*y - 2.0f) + 5.5f * y*y*y*y*y*y*y*y + x / (2.f * y) [L6] COND TRUE !(cond) [L3] __assert_fail("0", "Rump_float.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:50,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:50,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:50,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:50,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:50,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:50,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:50,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:50,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:50,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:50,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:50,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:50,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:50,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:50,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:50,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:50,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:50,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:50,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:50,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:50,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:50,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:50,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:50,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:50,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:50,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:50,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:50,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:50,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:50,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:50,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:50,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:50,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:50,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:50,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:50,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:50,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:50,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:50,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:50,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:50,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:50,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:05:51,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:51,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:51,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:51,019 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:51,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:51,020 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:51,020 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:51,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:51,021 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:51,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:51,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:51,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:51,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:51,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:51,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:51,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:51,025 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:51,025 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:05:51,025 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:05:51,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:51,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:51,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:51,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:51,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:51,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:05:51,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:51,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:51,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:51,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:51,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:51,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:51,028 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:05:51,028 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:05:51,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:51,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:51,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:51,029 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_0699cadf-abb9-43b9-8be7-7808e5946d8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2020-11-22 13:05:51,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:51,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:51,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:51,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:51,465 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:51,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/../../sv-benchmarks/c/float-benchs/Rump_float.c [2020-11-22 13:05:51,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/00e0661bd/f4e7ac2013434b4fa2804c020ab07598/FLAGefe727b3a [2020-11-22 13:05:52,016 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:52,017 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/sv-benchmarks/c/float-benchs/Rump_float.c [2020-11-22 13:05:52,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/00e0661bd/f4e7ac2013434b4fa2804c020ab07598/FLAGefe727b3a [2020-11-22 13:05:52,396 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/data/00e0661bd/f4e7ac2013434b4fa2804c020ab07598 [2020-11-22 13:05:52,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:52,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:52,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:52,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:52,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:52,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f83d49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52, skipping insertion in model container [2020-11-22 13:05:52,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:52,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:52,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:52,604 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:52,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:52,637 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:52,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52 WrapperNode [2020-11-22 13:05:52,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:52,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:52,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:52,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:52,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:52,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:52,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:52,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:52,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... [2020-11-22 13:05:52,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:52,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:52,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:52,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:52,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/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 13:05:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:52,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:05:52,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:55,324 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:55,324 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-22 13:05:55,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:55 BoogieIcfgContainer [2020-11-22 13:05:55,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:55,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:55,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:55,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:55,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:52" (1/3) ... [2020-11-22 13:05:55,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d251af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:55, skipping insertion in model container [2020-11-22 13:05:55,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:52" (2/3) ... [2020-11-22 13:05:55,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d251af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:55, skipping insertion in model container [2020-11-22 13:05:55,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:55" (3/3) ... [2020-11-22 13:05:55,333 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2020-11-22 13:05:55,343 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:55,347 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:05:55,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:05:55,377 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:55,377 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:55,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:55,378 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:55,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:55,378 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:55,378 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:55,378 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-22 13:05:55,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 13:05:55,391 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:55,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 13:05:55,392 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:55,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:55,406 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-22 13:05:55,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:55,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462427252] [2020-11-22 13:05:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/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 13:05:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:57,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:05:57,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:57,364 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 13:05:57,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:59,497 WARN L838 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2020-11-22 13:06:01,635 WARN L860 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2020-11-22 13:06:01,637 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 13:06:01,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462427252] [2020-11-22 13:06:01,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:01,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:06:01,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545603053] [2020-11-22 13:06:01,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:01,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:01,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:01,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2020-11-22 13:06:01,658 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-11-22 13:06:03,779 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from true [2020-11-22 13:06:03,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:03,793 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-22 13:06:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:03,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-11-22 13:06:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:03,804 INFO L225 Difference]: With dead ends: 14 [2020-11-22 13:06:03,804 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:03,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2020-11-22 13:06:03,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:03,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:03,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-22 13:06:03,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:03,829 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:03,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:03,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:04,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:04,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:04,078 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:04,078 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:06:04,078 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:04,078 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:06:04,078 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:06:04,079 INFO L270 CegarLoopResult]: At program point L16(lines 8 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-11-22 13:06:04,079 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-22 13:06:04,079 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-22 13:06:04,079 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:06:04,079 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-11-22 13:06:04,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:04 BoogieIcfgContainer [2020-11-22 13:06:04,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:04,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:04,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:04,093 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:04,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:55" (3/4) ... [2020-11-22 13:06:04,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:04,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-22 13:06:04,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:06:04,106 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:06:04,106 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:04,138 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0699cadf-abb9-43b9-8be7-7808e5946d8e/bin/utaipan/witness.graphml [2020-11-22 13:06:04,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:04,140 INFO L168 Benchmark]: Toolchain (without parser) took 11739.18 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.4 MB in the beginning and 47.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 833.5 kB. Max. memory is 16.1 GB. [2020-11-22 13:06:04,141 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 38.5 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:04,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.96 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 25.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:04,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.58 ms. Allocated memory is still 56.6 MB. Free memory was 24.9 MB in the beginning and 23.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:04,143 INFO L168 Benchmark]: Boogie Preprocessor took 73.65 ms. Allocated memory is still 56.6 MB. Free memory was 23.6 MB in the beginning and 39.6 MB in the end (delta: -16.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:04,144 INFO L168 Benchmark]: RCFGBuilder took 2578.87 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 28.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:04,144 INFO L168 Benchmark]: TraceAbstraction took 8765.44 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 28.4 MB in the beginning and 50.4 MB in the end (delta: -22.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:04,145 INFO L168 Benchmark]: Witness Printer took 45.75 ms. Allocated memory is still 69.2 MB. Free memory was 50.0 MB in the beginning and 47.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:04,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 38.5 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.96 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 25.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.58 ms. Allocated memory is still 56.6 MB. Free memory was 24.9 MB in the beginning and 23.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.65 ms. Allocated memory is still 56.6 MB. Free memory was 23.6 MB in the beginning and 39.6 MB in the end (delta: -16.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2578.87 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 28.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8765.44 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 28.4 MB in the beginning and 50.4 MB in the end (delta: -22.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Witness Printer took 45.75 ms. Allocated memory is still 69.2 MB. Free memory was 50.0 MB in the beginning and 47.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.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: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 6 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...