./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/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 cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f ................................................................................................................................................................................................................................................................................................................. 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_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/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 cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:21:48,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:21:48,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:21:48,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:21:48,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:21:48,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:21:48,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:21:48,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:21:48,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:21:48,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:21:48,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:21:48,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:21:48,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:21:48,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:21:48,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:21:48,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:21:48,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:21:48,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:21:48,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:21:48,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:21:48,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:21:48,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:21:48,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:21:48,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:21:48,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:21:48,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:21:48,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:21:48,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:21:48,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:21:48,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:21:48,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:21:48,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:21:48,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:21:48,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:21:48,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:21:48,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:21:48,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:21:48,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:21:48,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:21:48,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:21:48,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:21:48,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 06:21:48,422 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:21:48,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:21:48,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:21:48,423 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:21:48,423 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:21:48,423 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:21:48,423 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:21:48,424 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:21:48,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:21:48,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:21:48,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:21:48,424 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:21:48,424 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:21:48,424 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:21:48,424 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:21:48,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:21:48,425 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:21:48,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:21:48,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:21:48,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:21:48,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:21:48,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:21:48,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:21:48,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:21:48,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:21:48,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:21:48,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:21:48,427 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:21:48,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:21:48,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:21:48,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:21:48,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:21:48,427 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_95fa06e4-112a-4f3f-851c-34adcff12755/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f [2020-12-09 06:21:48,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:21:48,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:21:48,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:21:48,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:21:48,612 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:21:48,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-12-09 06:21:48,653 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/374fba196/291eb5950faa4015b57c6cf721db719c/FLAG42997dd49 [2020-12-09 06:21:49,037 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:21:49,038 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-12-09 06:21:49,045 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/374fba196/291eb5950faa4015b57c6cf721db719c/FLAG42997dd49 [2020-12-09 06:21:49,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/374fba196/291eb5950faa4015b57c6cf721db719c [2020-12-09 06:21:49,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:21:49,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:21:49,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:21:49,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:21:49,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:21:49,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d183137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49, skipping insertion in model container [2020-12-09 06:21:49,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:21:49,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:21:49,218 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2020-12-09 06:21:49,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:21:49,228 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:21:49,255 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2020-12-09 06:21:49,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:21:49,268 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:21:49,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49 WrapperNode [2020-12-09 06:21:49,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:21:49,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:21:49,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:21:49,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:21:49,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:21:49,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:21:49,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:21:49,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:21:49,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... [2020-12-09 06:21:49,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:21:49,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:21:49,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:21:49,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:21:49,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/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 [2020-12-09 06:21:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 06:21:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:21:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 06:21:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 06:21:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 06:21:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:21:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:21:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 06:21:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-09 06:21:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 06:21:49,712 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:21:49,713 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-09 06:21:49,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:49 BoogieIcfgContainer [2020-12-09 06:21:49,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:21:49,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:21:49,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:21:49,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:21:49,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:21:49" (1/3) ... [2020-12-09 06:21:49,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4f7aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:21:49, skipping insertion in model container [2020-12-09 06:21:49,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:49" (2/3) ... [2020-12-09 06:21:49,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4f7aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:21:49, skipping insertion in model container [2020-12-09 06:21:49,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:49" (3/3) ... [2020-12-09 06:21:49,722 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2020-12-09 06:21:49,735 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:21:49,738 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:21:49,748 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:21:49,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:21:49,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:21:49,770 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:21:49,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:21:49,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:21:49,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:21:49,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:21:49,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:21:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-09 06:21:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 06:21:49,786 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:21:49,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:21:49,787 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:21:49,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:21:49,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1340340375, now seen corresponding path program 1 times [2020-12-09 06:21:49,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:21:49,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741259426] [2020-12-09 06:21:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:21:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:21:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:21:49,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741259426] [2020-12-09 06:21:49,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:21:49,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:21:49,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606648229] [2020-12-09 06:21:49,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 06:21:49,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:21:49,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 06:21:49,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:21:49,939 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-09 06:21:49,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:21:49,957 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2020-12-09 06:21:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 06:21:49,958 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 06:21:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:21:49,966 INFO L225 Difference]: With dead ends: 67 [2020-12-09 06:21:49,967 INFO L226 Difference]: Without dead ends: 32 [2020-12-09 06:21:49,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:21:49,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-09 06:21:49,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-09 06:21:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-09 06:21:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2020-12-09 06:21:49,999 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2020-12-09 06:21:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:21:49,999 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2020-12-09 06:21:49,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 06:21:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-12-09 06:21:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 06:21:50,000 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:21:50,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:21:50,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 06:21:50,000 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:21:50,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:21:50,001 INFO L82 PathProgramCache]: Analyzing trace with hash 932107514, now seen corresponding path program 1 times [2020-12-09 06:21:50,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:21:50,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400314660] [2020-12-09 06:21:50,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:21:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:21:50,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:21:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 06:21:50,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 06:21:50,112 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 06:21:50,112 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 06:21:50,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 06:21:50,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:21:50 BoogieIcfgContainer [2020-12-09 06:21:50,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:21:50,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:21:50,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:21:50,133 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:21:50,134 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:49" (3/4) ... [2020-12-09 06:21:50,136 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 06:21:50,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:21:50,138 INFO L168 Benchmark]: Toolchain (without parser) took 1075.68 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 57.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:21:50,138 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 98.6 MB. Free memory is still 76.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:21:50,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.35 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 57.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:21:50,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 55.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:21:50,139 INFO L168 Benchmark]: Boogie Preprocessor took 25.43 ms. Allocated memory is still 98.6 MB. Free memory was 55.9 MB in the beginning and 54.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:21:50,140 INFO L168 Benchmark]: RCFGBuilder took 376.80 ms. Allocated memory is still 98.6 MB. Free memory was 54.1 MB in the beginning and 48.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:21:50,140 INFO L168 Benchmark]: TraceAbstraction took 416.38 ms. Allocated memory is still 98.6 MB. Free memory was 47.6 MB in the beginning and 57.8 MB in the end (delta: -10.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:21:50,140 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 98.6 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:21:50,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 98.6 MB. Free memory is still 76.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 206.35 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 57.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.70 ms. Allocated memory is still 98.6 MB. Free memory was 57.8 MB in the beginning and 55.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.43 ms. Allocated memory is still 98.6 MB. Free memory was 55.9 MB in the beginning and 54.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 376.80 ms. Allocated memory is still 98.6 MB. Free memory was 54.1 MB in the beginning and 48.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 416.38 ms. Allocated memory is still 98.6 MB. Free memory was 47.6 MB in the beginning and 57.8 MB in the end (delta: -10.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.95 ms. Allocated memory is still 98.6 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L118] float x = __VERIFIER_nondet_float(); [L119] float y = -0.0f; [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L120] float res = fmod_float(x, y); [L110] return x != x; [L123] COND TRUE !isnan_float(res) [L124] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 06:21:51,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:21:51,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:21:51,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:21:51,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:21:51,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:21:51,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:21:51,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:21:51,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:21:51,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:21:51,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:21:51,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:21:51,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:21:51,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:21:51,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:21:51,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:21:51,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:21:51,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:21:51,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:21:51,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:21:51,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:21:51,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:21:51,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:21:51,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:21:51,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:21:51,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:21:51,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:21:51,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:21:51,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:21:51,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:21:51,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:21:51,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:21:51,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:21:51,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:21:51,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:21:51,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:21:51,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:21:51,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:21:51,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:21:51,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:21:51,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:21:51,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 06:21:51,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:21:51,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:21:51,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:21:51,738 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:21:51,738 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:21:51,738 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:21:51,738 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:21:51,738 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:21:51,738 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:21:51,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:21:51,739 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:21:51,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:21:51,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:21:51,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:21:51,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:21:51,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:21:51,740 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:21:51,740 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 06:21:51,740 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 06:21:51,740 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:21:51,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:21:51,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:21:51,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:21:51,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:21:51,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 06:21:51,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:21:51,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:21:51,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:21:51,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:21:51,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:21:51,745 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 06:21:51,746 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 06:21:51,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:21:51,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:21:51,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:21:51,746 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_95fa06e4-112a-4f3f-851c-34adcff12755/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f [2020-12-09 06:21:51,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:21:52,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:21:52,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:21:52,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:21:52,012 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:21:52,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-12-09 06:21:52,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/93deba562/89cac5380d9b463bacfe99a044fbfb9f/FLAG6f6473ee8 [2020-12-09 06:21:52,427 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:21:52,428 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-12-09 06:21:52,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/93deba562/89cac5380d9b463bacfe99a044fbfb9f/FLAG6f6473ee8 [2020-12-09 06:21:52,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/data/93deba562/89cac5380d9b463bacfe99a044fbfb9f [2020-12-09 06:21:52,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:21:52,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:21:52,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:21:52,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:21:52,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:21:52,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b20ddfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52, skipping insertion in model container [2020-12-09 06:21:52,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:21:52,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:21:52,592 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2020-12-09 06:21:52,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:21:52,610 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:21:52,643 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2020-12-09 06:21:52,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:21:52,661 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:21:52,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52 WrapperNode [2020-12-09 06:21:52,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:21:52,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:21:52,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:21:52,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:21:52,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:21:52,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:21:52,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:21:52,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:21:52,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... [2020-12-09 06:21:52,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:21:52,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:21:52,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:21:52,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:21:52,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/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 [2020-12-09 06:21:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-09 06:21:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 06:21:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:21:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 06:21:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 06:21:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:21:52,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:21:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 06:21:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 06:21:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 06:21:55,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:21:55,461 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-09 06:21:55,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:55 BoogieIcfgContainer [2020-12-09 06:21:55,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:21:55,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:21:55,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:21:55,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:21:55,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:21:52" (1/3) ... [2020-12-09 06:21:55,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74148003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:21:55, skipping insertion in model container [2020-12-09 06:21:55,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:21:52" (2/3) ... [2020-12-09 06:21:55,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74148003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:21:55, skipping insertion in model container [2020-12-09 06:21:55,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:55" (3/3) ... [2020-12-09 06:21:55,467 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2020-12-09 06:21:55,477 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:21:55,479 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:21:55,487 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:21:55,503 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:21:55,503 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:21:55,503 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:21:55,504 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:21:55,504 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:21:55,504 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:21:55,504 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:21:55,504 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:21:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-12-09 06:21:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 06:21:55,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:21:55,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:21:55,517 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:21:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:21:55,521 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-12-09 06:21:55,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:21:55,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221997736] [2020-12-09 06:21:55,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/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 [2020-12-09 06:21:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:21:55,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 06:21:55,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:21:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:21:55,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:21:55,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221997736] [2020-12-09 06:21:55,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:21:55,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:21:55,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087692276] [2020-12-09 06:21:55,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 06:21:55,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:21:55,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 06:21:55,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:21:55,798 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-12-09 06:21:55,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:21:55,811 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2020-12-09 06:21:55,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 06:21:55,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 06:21:55,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:21:55,818 INFO L225 Difference]: With dead ends: 82 [2020-12-09 06:21:55,818 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 06:21:55,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:21:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 06:21:55,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-09 06:21:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-09 06:21:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-12-09 06:21:55,844 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-12-09 06:21:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:21:55,845 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-12-09 06:21:55,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 06:21:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-12-09 06:21:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 06:21:55,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:21:55,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:21:56,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 06:21:56,047 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:21:56,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:21:56,050 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-12-09 06:21:56,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:21:56,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534837722] [2020-12-09 06:21:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 06:21:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:21:56,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 06:21:56,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:21:58,221 WARN L197 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 06:21:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:21:59,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:21:59,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534837722] [2020-12-09 06:21:59,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:21:59,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 06:21:59,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270617852] [2020-12-09 06:21:59,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 06:21:59,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:21:59,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 06:21:59,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 06:21:59,460 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 7 states. [2020-12-09 06:22:03,363 WARN L197 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 06:22:05,234 WARN L197 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 06:22:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:22:07,665 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-12-09 06:22:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 06:22:07,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-09 06:22:07,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:22:07,669 INFO L225 Difference]: With dead ends: 44 [2020-12-09 06:22:07,669 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 06:22:07,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 06:22:07,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 06:22:07,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-09 06:22:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-09 06:22:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-12-09 06:22:07,674 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-12-09 06:22:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:22:07,674 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-12-09 06:22:07,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 06:22:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-12-09 06:22:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 06:22:07,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:22:07,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:22:07,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 06:22:07,876 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:22:07,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:22:07,878 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-12-09 06:22:07,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:22:07,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598174331] [2020-12-09 06:22:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 06:22:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:22:07,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 06:22:07,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:22:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:22:08,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:22:08,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598174331] [2020-12-09 06:22:08,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:22:08,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 06:22:08,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764418650] [2020-12-09 06:22:08,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 06:22:08,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:22:08,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 06:22:08,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:22:08,047 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 5 states. [2020-12-09 06:22:08,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:22:08,117 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-12-09 06:22:08,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 06:22:08,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-09 06:22:08,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:22:08,117 INFO L225 Difference]: With dead ends: 39 [2020-12-09 06:22:08,117 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 06:22:08,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 06:22:08,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 06:22:08,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 06:22:08,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 06:22:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 06:22:08,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-09 06:22:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:22:08,118 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 06:22:08,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 06:22:08,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 06:22:08,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 06:22:08,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 06:22:08,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 06:22:08,886 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 06:22:09,624 WARN L197 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 06:22:09,644 INFO L262 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-12-09 06:22:09,644 INFO L262 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-12-09 06:22:09,644 INFO L262 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-12-09 06:22:09,644 INFO L262 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-12-09 06:22:09,644 INFO L258 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2020-12-09 06:22:09,644 INFO L262 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-12-09 06:22:09,644 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L258 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L265 CegarLoopResult]: At program point L128(lines 112 129) the Hoare annotation is: true [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-12-09 06:22:09,645 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-12-09 06:22:09,646 INFO L258 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|)) [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-12-09 06:22:09,646 INFO L258 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2020-12-09 06:22:09,646 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L258 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L262 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-12-09 06:22:09,647 INFO L258 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-12-09 06:22:09,648 INFO L262 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-12-09 06:22:09,648 INFO L262 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-12-09 06:22:09,648 INFO L258 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-12-09 06:22:09,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,659 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:22:09 BoogieIcfgContainer [2020-12-09 06:22:09,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:22:09,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:22:09,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:22:09,663 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:22:09,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:21:55" (3/4) ... [2020-12-09 06:22:09,665 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 06:22:09,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 06:22:09,673 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 06:22:09,673 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:22:09,673 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:22:09,696 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_95fa06e4-112a-4f3f-851c-34adcff12755/bin/utaipan/witness.graphml [2020-12-09 06:22:09,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:22:09,697 INFO L168 Benchmark]: Toolchain (without parser) took 17251.66 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 43.5 MB in the beginning and 32.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2020-12-09 06:22:09,698 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 62.9 MB. Free memory was 45.2 MB in the beginning and 45.2 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:22:09,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.17 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 43.9 MB in the end (delta: -545.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:22:09,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 41.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:22:09,699 INFO L168 Benchmark]: Boogie Preprocessor took 38.19 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 40.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:22:09,699 INFO L168 Benchmark]: RCFGBuilder took 2717.63 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 39.8 MB in the beginning and 52.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:22:09,700 INFO L168 Benchmark]: TraceAbstraction took 14198.92 ms. Allocated memory is still 81.8 MB. Free memory was 52.4 MB in the beginning and 34.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-12-09 06:22:09,700 INFO L168 Benchmark]: Witness Printer took 33.91 ms. Allocated memory is still 81.8 MB. Free memory was 34.6 MB in the beginning and 32.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:22:09,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 62.9 MB. Free memory was 45.2 MB in the beginning and 45.2 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 216.17 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 43.9 MB in the end (delta: -545.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 41.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.19 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 40.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2717.63 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 39.8 MB in the beginning and 52.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14198.92 ms. Allocated memory is still 81.8 MB. Free memory was 52.4 MB in the beginning and 34.6 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Witness Printer took 33.91 ms. Allocated memory is still 81.8 MB. Free memory was 34.6 MB in the beginning and 32.1 MB in the end (delta: 2.5 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2020-12-09 06:22:09,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 06:22:09,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-12-09 06:22:09,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 06:22:09,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 103 SDslu, 149 SDs, 0 SdLazy, 32 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 49 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 2 QuantifiedInterpolants, 1544 SizeOfPredicates, 15 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...