./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_double_exact.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_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/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 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 ................................................................................................................................................................................................................................................ 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_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/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 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 ........................................................................................................................................................................................................................................................................................................................ 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 13:08:35,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:35,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:35,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:35,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:35,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:35,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:35,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:35,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:35,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:35,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:35,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:35,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:35,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:35,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:35,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:35,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:35,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:35,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:35,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:35,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:35,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:35,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:35,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:35,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:35,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:35,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:35,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:35,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:35,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:35,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:35,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:35,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:35,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:35,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:35,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:35,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:35,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:35,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:35,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:35,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:35,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:35,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:35,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:35,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:35,483 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:35,483 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:35,483 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:35,484 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:35,484 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:35,484 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:35,484 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:35,485 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:35,488 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:35,488 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:35,489 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:35,489 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:35,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:35,490 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:35,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:35,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:35,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:35,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:35,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:35,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:35,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:35,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:35,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:35,492 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:35,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:35,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:35,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:35,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:35,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:35,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:35,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:35,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:35,497 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:35,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:35,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:35,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:35,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:35,499 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_65df7697-25f5-48ef-8132-fc3283027989/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 [2020-11-22 13:08:35,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:35,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:35,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:35,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:35,767 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:35,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-22 13:08:35,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/17c51b5c9/7cc96c3a29e74598b211d0510be6dc83/FLAG3c4ff9d66 [2020-11-22 13:08:36,254 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:36,255 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-22 13:08:36,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/17c51b5c9/7cc96c3a29e74598b211d0510be6dc83/FLAG3c4ff9d66 [2020-11-22 13:08:36,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/17c51b5c9/7cc96c3a29e74598b211d0510be6dc83 [2020-11-22 13:08:36,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:36,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:36,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:36,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:36,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:36,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606137cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36, skipping insertion in model container [2020-11-22 13:08:36,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:36,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:36,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:36,844 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:36,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:36,917 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:36,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36 WrapperNode [2020-11-22 13:08:36,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:36,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:36,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:36,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:36,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:36,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:36,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:36,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:36,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... [2020-11-22 13:08:36,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:36,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:36,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:36,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:36,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/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 13:08:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:37,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:08:37,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:37,354 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:37,354 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-22 13:08:37,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:37 BoogieIcfgContainer [2020-11-22 13:08:37,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:37,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:37,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:37,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:37,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:36" (1/3) ... [2020-11-22 13:08:37,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9c4d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:37, skipping insertion in model container [2020-11-22 13:08:37,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:36" (2/3) ... [2020-11-22 13:08:37,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9c4d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:37, skipping insertion in model container [2020-11-22 13:08:37,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:37" (3/3) ... [2020-11-22 13:08:37,364 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2020-11-22 13:08:37,375 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:37,379 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:08:37,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:08:37,415 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:37,415 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:37,416 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:37,416 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:37,416 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:37,416 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:37,416 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:37,416 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-22 13:08:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-22 13:08:37,433 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:37,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-22 13:08:37,434 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:37,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:37,439 INFO L82 PathProgramCache]: Analyzing trace with hash 48212, now seen corresponding path program 1 times [2020-11-22 13:08:37,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:37,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536669461] [2020-11-22 13:08:37,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:37,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:37,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:37,583 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:08:37,584 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:37,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:08:37,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:37 BoogieIcfgContainer [2020-11-22 13:08:37,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:37,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:37,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:37,604 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:37,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:37" (3/4) ... [2020-11-22 13:08:37,607 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:08:37,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:37,610 INFO L168 Benchmark]: Toolchain (without parser) took 964.43 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 56.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:37,611 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 43.4 MB in the beginning and 43.4 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:37,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.17 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 82.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:37,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.10 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 81.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:37,614 INFO L168 Benchmark]: Boogie Preprocessor took 25.26 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 80.8 MB in the end (delta: 784.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:37,619 INFO L168 Benchmark]: RCFGBuilder took 372.14 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 68.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:37,620 INFO L168 Benchmark]: TraceAbstraction took 244.83 ms. Allocated memory is still 104.9 MB. Free memory was 68.2 MB in the beginning and 56.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:37,621 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 104.9 MB. Free memory was 56.5 MB in the beginning and 56.2 MB in the end (delta: 347.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:37,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory was 43.4 MB in the beginning and 43.4 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.17 ms. Allocated memory is still 104.9 MB. Free memory was 74.8 MB in the beginning and 82.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.10 ms. Allocated memory is still 104.9 MB. Free memory was 82.8 MB in the beginning and 81.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.26 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 80.8 MB in the end (delta: 784.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 372.14 ms. Allocated memory is still 104.9 MB. Free memory was 80.8 MB in the beginning and 68.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 244.83 ms. Allocated memory is still 104.9 MB. Free memory was 68.2 MB in the beginning and 56.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.23 ms. Allocated memory is still 104.9 MB. Free memory was 56.5 MB in the beginning and 56.2 MB in the end (delta: 347.9 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 someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x, y, z, r; [L12] x = 1e8 [L13] y = x + 1 [L14] z = x - 1 [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_double_exact.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 13:08:40,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:40,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:40,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:40,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:40,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:40,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:40,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:40,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:40,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:40,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:40,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:40,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:40,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:40,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:40,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:40,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:40,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:40,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:40,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:40,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:40,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:40,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:40,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:40,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:40,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:40,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:40,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:40,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:40,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:40,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:40,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:40,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:40,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:40,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:40,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:40,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:40,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:40,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:40,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:40,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:40,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:40,357 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:40,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:40,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:40,358 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:40,359 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:40,359 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:40,359 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:40,359 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:40,360 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:40,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:40,361 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:40,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:40,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:40,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:40,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:40,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:40,362 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:40,362 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:40,362 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:40,362 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:40,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:40,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:40,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:40,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:40,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:40,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:40,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:40,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:40,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:40,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:40,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:40,365 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:40,365 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:40,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:40,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:40,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:40,366 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_65df7697-25f5-48ef-8132-fc3283027989/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 [2020-11-22 13:08:40,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:40,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:40,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:40,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:40,853 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:40,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-22 13:08:40,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/a63c3d397/5740a6c20fb54d4f9b55106941ff2526/FLAG440e4bae0 [2020-11-22 13:08:41,453 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:41,453 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-22 13:08:41,467 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/a63c3d397/5740a6c20fb54d4f9b55106941ff2526/FLAG440e4bae0 [2020-11-22 13:08:41,819 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/data/a63c3d397/5740a6c20fb54d4f9b55106941ff2526 [2020-11-22 13:08:41,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:41,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:41,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:41,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:41,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:41,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:41" (1/1) ... [2020-11-22 13:08:41,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fca7fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:41, skipping insertion in model container [2020-11-22 13:08:41,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:41" (1/1) ... [2020-11-22 13:08:41,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:41,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:42,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:42,049 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:42,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:42,080 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:42,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42 WrapperNode [2020-11-22 13:08:42,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:42,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:42,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:42,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:42,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:42,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:42,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:42,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:42,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... [2020-11-22 13:08:42,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:42,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:42,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:42,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:42,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/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 13:08:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:42,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:08:42,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:43,067 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:43,068 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-22 13:08:43,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:43 BoogieIcfgContainer [2020-11-22 13:08:43,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:43,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:43,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:43,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:43,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:41" (1/3) ... [2020-11-22 13:08:43,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255f2780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:43, skipping insertion in model container [2020-11-22 13:08:43,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:42" (2/3) ... [2020-11-22 13:08:43,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255f2780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:43, skipping insertion in model container [2020-11-22 13:08:43,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:43" (3/3) ... [2020-11-22 13:08:43,078 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2020-11-22 13:08:43,090 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:43,094 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:08:43,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:08:43,130 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:43,130 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:43,130 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:43,131 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:43,131 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:43,131 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:43,131 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:43,131 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-22 13:08:43,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 13:08:43,149 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:43,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 13:08:43,150 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:08:43,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:43,156 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-22 13:08:43,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:08:43,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735018820] [2020-11-22 13:08:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/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 13:08:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:43,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:08:43,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:08:43,626 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 13:08:43,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:08:43,663 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 13:08:43,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735018820] [2020-11-22 13:08:43,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:43,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:08:43,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6872970] [2020-11-22 13:08:43,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:08:43,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:08:43,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:08:43,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:08:43,693 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-11-22 13:08:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:44,174 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-22 13:08:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:08:44,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-22 13:08:44,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:44,180 INFO L225 Difference]: With dead ends: 14 [2020-11-22 13:08:44,181 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:08:44,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:08:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:08:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:08:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:08:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:08:44,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-22 13:08:44,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:44,210 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:08:44,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:08:44,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:08:44,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:08:44,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:08:44,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:08:44,499 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:08:44,499 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:08:44,499 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:08:44,499 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:08:44,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:08:44,500 INFO L270 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-22 13:08:44,500 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-22 13:08:44,500 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-22 13:08:44,500 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:08:44,501 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-22 13:08:44,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:44,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:44,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:44,535 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:44,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:44 BoogieIcfgContainer [2020-11-22 13:08:44,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:44,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:44,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:44,542 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:44,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:43" (3/4) ... [2020-11-22 13:08:44,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:08:44,557 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-22 13:08:44,557 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:08:44,558 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:08:44,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:08:44,615 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_65df7697-25f5-48ef-8132-fc3283027989/bin/utaipan/witness.graphml [2020-11-22 13:08:44,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:44,620 INFO L168 Benchmark]: Toolchain (without parser) took 2793.54 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 27.4 MB in the beginning and 46.4 MB in the end (delta: -19.0 MB). Peak memory consumption was 643.3 kB. Max. memory is 16.1 GB. [2020-11-22 13:08:44,621 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.3 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:44,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.51 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 31.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:44,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.19 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 29.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:44,623 INFO L168 Benchmark]: Boogie Preprocessor took 77.88 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 29.8 MB in the beginning and 52.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:44,624 INFO L168 Benchmark]: RCFGBuilder took 872.78 ms. Allocated memory is still 69.2 MB. Free memory was 52.2 MB in the beginning and 41.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:44,625 INFO L168 Benchmark]: TraceAbstraction took 1468.17 ms. Allocated memory is still 69.2 MB. Free memory was 41.3 MB in the beginning and 48.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:44,626 INFO L168 Benchmark]: Witness Printer took 73.44 ms. Allocated memory is still 69.2 MB. Free memory was 48.5 MB in the beginning and 46.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:44,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 32.3 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.51 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 31.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.19 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 29.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.88 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 29.8 MB in the beginning and 52.2 MB in the end (delta: -22.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 872.78 ms. Allocated memory is still 69.2 MB. Free memory was 52.2 MB in the beginning and 41.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1468.17 ms. Allocated memory is still 69.2 MB. Free memory was 41.3 MB in the beginning and 48.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Witness Printer took 73.44 ms. Allocated memory is still 69.2 MB. Free memory was 48.5 MB in the beginning and 46.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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 * 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 [2020-11-22 13:08:44,642 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,643 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:44,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,643 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2020-11-22 13:08:44,643 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,644 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:08:44,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:08:44,644 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 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...