./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.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_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/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 db1a0648fa242e1728c1c06c3b545dcc4e795062 ................................................................................................................................................................................................................................................................................................................. 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_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/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 db1a0648fa242e1728c1c06c3b545dcc4e795062 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:50:40,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:50:40,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:50:40,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:50:40,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:50:40,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:50:40,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:50:40,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:50:40,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:50:40,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:50:40,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:50:40,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:50:40,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:50:40,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:50:40,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:50:40,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:50:40,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:50:40,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:50:40,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:50:40,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:50:40,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:50:40,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:50:40,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:50:40,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:50:40,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:50:40,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:50:40,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:50:40,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:50:40,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:50:40,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:50:40,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:50:40,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:50:40,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:50:40,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:50:40,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:50:40,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:50:40,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:50:40,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:50:40,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:50:40,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:50:40,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:50:40,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 17:50:40,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:50:40,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:50:40,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:50:40,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 17:50:40,525 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:50:40,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 17:50:40,526 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 17:50:40,526 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 17:50:40,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:50:40,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:50:40,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:50:40,528 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:50:40,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:50:40,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:50:40,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:50:40,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:50:40,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:50:40,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:50:40,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:50:40,529 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 17:50:40,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 17:50:40,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:50:40,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:50:40,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:50:40,529 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_3c800220-ceb0-4264-b5b0-097111737adb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2020-12-09 17:50:40,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:50:40,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:50:40,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:50:40,738 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:50:40,738 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:50:40,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-12-09 17:50:40,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/26b69dd54/d32395b6676c4253b0e1dffca7588e7c/FLAGeb529c971 [2020-12-09 17:50:41,135 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:50:41,135 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-12-09 17:50:41,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/26b69dd54/d32395b6676c4253b0e1dffca7588e7c/FLAGeb529c971 [2020-12-09 17:50:41,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/26b69dd54/d32395b6676c4253b0e1dffca7588e7c [2020-12-09 17:50:41,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:50:41,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:50:41,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:50:41,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:50:41,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:50:41,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2679381c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41, skipping insertion in model container [2020-12-09 17:50:41,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:50:41,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:50:41,325 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_3c800220-ceb0-4264-b5b0-097111737adb/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2020-12-09 17:50:41,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:50:41,334 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:50:41,367 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_3c800220-ceb0-4264-b5b0-097111737adb/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2020-12-09 17:50:41,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:50:41,379 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:50:41,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41 WrapperNode [2020-12-09 17:50:41,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:50:41,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:50:41,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:50:41,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:50:41,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:50:41,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:50:41,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:50:41,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:50:41,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... [2020-12-09 17:50:41,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:50:41,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:50:41,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:50:41,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:50:41,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/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 17:50:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 17:50:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:50:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 17:50:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 17:50:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 17:50:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:50:41,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:50:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 17:50:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 17:50:41,985 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:50:41,985 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-09 17:50:41,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:50:41 BoogieIcfgContainer [2020-12-09 17:50:41,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:50:41,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:50:41,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:50:41,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:50:41,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:50:41" (1/3) ... [2020-12-09 17:50:41,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2955896b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:50:41, skipping insertion in model container [2020-12-09 17:50:41,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:41" (2/3) ... [2020-12-09 17:50:41,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2955896b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:50:41, skipping insertion in model container [2020-12-09 17:50:41,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:50:41" (3/3) ... [2020-12-09 17:50:41,993 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2020-12-09 17:50:42,004 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:50:42,006 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 17:50:42,014 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 17:50:42,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:50:42,031 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:50:42,031 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:50:42,031 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:50:42,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:50:42,031 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:50:42,031 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:50:42,031 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:50:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-12-09 17:50:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 17:50:42,044 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:50:42,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:50:42,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:50:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:50:42,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1724686161, now seen corresponding path program 1 times [2020-12-09 17:50:42,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:50:42,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667042290] [2020-12-09 17:50:42,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:50:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:50:42,147 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 17:50:42,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667042290] [2020-12-09 17:50:42,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:50:42,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:50:42,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209984436] [2020-12-09 17:50:42,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 17:50:42,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:50:42,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 17:50:42,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 17:50:42,162 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-12-09 17:50:42,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:50:42,176 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2020-12-09 17:50:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 17:50:42,177 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 17:50:42,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:50:42,183 INFO L225 Difference]: With dead ends: 91 [2020-12-09 17:50:42,183 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 17:50:42,185 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 17:50:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 17:50:42,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-09 17:50:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 17:50:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2020-12-09 17:50:42,209 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2020-12-09 17:50:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:50:42,209 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2020-12-09 17:50:42,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 17:50:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2020-12-09 17:50:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 17:50:42,210 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:50:42,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:50:42,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 17:50:42,210 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:50:42,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:50:42,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1651405550, now seen corresponding path program 1 times [2020-12-09 17:50:42,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:50:42,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324913379] [2020-12-09 17:50:42,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:50:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:50:42,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:50:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:50:42,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:50:42,274 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 17:50:42,275 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 17:50:42,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 17:50:42,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:50:42 BoogieIcfgContainer [2020-12-09 17:50:42,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:50:42,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:50:42,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:50:42,300 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:50:42,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:50:41" (3/4) ... [2020-12-09 17:50:42,302 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 17:50:42,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:50:42,304 INFO L168 Benchmark]: Toolchain (without parser) took 1148.11 ms. Allocated memory is still 119.5 MB. Free memory was 81.0 MB in the beginning and 66.2 MB in the end (delta: 14.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-12-09 17:50:42,304 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 119.5 MB. Free memory is still 97.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:50:42,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.13 ms. Allocated memory is still 119.5 MB. Free memory was 80.8 MB in the beginning and 90.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:50:42,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.67 ms. Allocated memory is still 119.5 MB. Free memory was 90.9 MB in the beginning and 88.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:50:42,306 INFO L168 Benchmark]: Boogie Preprocessor took 35.49 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 86.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:50:42,306 INFO L168 Benchmark]: RCFGBuilder took 533.34 ms. Allocated memory is still 119.5 MB. Free memory was 86.7 MB in the beginning and 92.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2020-12-09 17:50:42,307 INFO L168 Benchmark]: TraceAbstraction took 310.75 ms. Allocated memory is still 119.5 MB. Free memory was 91.3 MB in the beginning and 66.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:50:42,307 INFO L168 Benchmark]: Witness Printer took 2.93 ms. Allocated memory is still 119.5 MB. Free memory was 66.9 MB in the beginning and 66.2 MB in the end (delta: 682.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:50:42,310 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 119.5 MB. Free memory is still 97.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 224.13 ms. Allocated memory is still 119.5 MB. Free memory was 80.8 MB in the beginning and 90.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.67 ms. Allocated memory is still 119.5 MB. Free memory was 90.9 MB in the beginning and 88.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.49 ms. Allocated memory is still 119.5 MB. Free memory was 88.8 MB in the beginning and 86.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 533.34 ms. Allocated memory is still 119.5 MB. Free memory was 86.7 MB in the beginning and 92.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 310.75 ms. Allocated memory is still 119.5 MB. Free memory was 91.3 MB in the beginning and 66.9 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.93 ms. Allocated memory is still 119.5 MB. Free memory was 66.9 MB in the beginning and 66.2 MB in the end (delta: 682.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 200]: 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = -0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 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=46occurred 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, 17 NumberOfCodeBlocks, 17 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 17:50:43,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:50:43,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:50:43,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:50:43,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:50:43,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:50:43,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:50:43,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:50:43,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:50:43,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:50:43,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:50:43,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:50:43,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:50:43,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:50:43,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:50:43,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:50:43,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:50:43,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:50:43,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:50:44,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:50:44,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:50:44,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:50:44,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:50:44,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:50:44,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:50:44,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:50:44,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:50:44,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:50:44,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:50:44,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:50:44,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:50:44,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:50:44,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:50:44,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:50:44,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:50:44,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:50:44,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:50:44,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:50:44,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:50:44,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:50:44,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:50:44,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 17:50:44,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:50:44,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:50:44,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:50:44,046 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:50:44,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:50:44,046 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:50:44,047 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:50:44,047 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:50:44,047 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:50:44,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:50:44,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:50:44,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:50:44,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:50:44,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:50:44,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:50:44,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:50:44,049 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:50:44,049 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 17:50:44,049 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 17:50:44,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:50:44,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:50:44,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:50:44,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:50:44,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:50:44,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 17:50:44,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:50:44,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:50:44,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:50:44,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:50:44,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:50:44,051 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 17:50:44,052 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 17:50:44,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:50:44,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:50:44,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:50:44,052 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_3c800220-ceb0-4264-b5b0-097111737adb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2020-12-09 17:50:44,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:50:44,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:50:44,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:50:44,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:50:44,295 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:50:44,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-12-09 17:50:44,339 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/ae206d7eb/63c728c31c3047b4a613e38c646aec21/FLAG229cc91af [2020-12-09 17:50:44,753 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:50:44,754 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-12-09 17:50:44,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/ae206d7eb/63c728c31c3047b4a613e38c646aec21/FLAG229cc91af [2020-12-09 17:50:44,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/data/ae206d7eb/63c728c31c3047b4a613e38c646aec21 [2020-12-09 17:50:44,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:50:44,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:50:44,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:50:44,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:50:44,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:50:44,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:50:44" (1/1) ... [2020-12-09 17:50:44,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8e3fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:44, skipping insertion in model container [2020-12-09 17:50:44,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:50:44" (1/1) ... [2020-12-09 17:50:44,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:50:44,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:50:44,959 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_3c800220-ceb0-4264-b5b0-097111737adb/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2020-12-09 17:50:44,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:50:44,974 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:50:45,025 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_3c800220-ceb0-4264-b5b0-097111737adb/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2020-12-09 17:50:45,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:50:45,045 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:50:45,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45 WrapperNode [2020-12-09 17:50:45,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:50:45,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:50:45,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:50:45,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:50:45,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:50:45,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:50:45,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:50:45,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:50:45,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... [2020-12-09 17:50:45,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:50:45,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:50:45,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:50:45,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:50:45,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/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 17:50:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 17:50:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:50:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 17:50:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 17:50:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:50:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:50:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 17:50:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 17:50:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 17:50:57,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:50:57,746 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-09 17:50:57,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:50:57 BoogieIcfgContainer [2020-12-09 17:50:57,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:50:57,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:50:57,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:50:57,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:50:57,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:50:44" (1/3) ... [2020-12-09 17:50:57,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292d49ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:50:57, skipping insertion in model container [2020-12-09 17:50:57,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:50:45" (2/3) ... [2020-12-09 17:50:57,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292d49ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:50:57, skipping insertion in model container [2020-12-09 17:50:57,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:50:57" (3/3) ... [2020-12-09 17:50:57,754 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2020-12-09 17:50:57,763 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:50:57,766 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 17:50:57,773 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 17:50:57,789 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:50:57,789 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:50:57,789 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:50:57,789 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:50:57,789 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:50:57,789 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:50:57,789 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:50:57,789 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:50:57,798 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-12-09 17:50:57,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 17:50:57,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:50:57,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:50:57,802 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:50:57,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:50:57,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2020-12-09 17:50:57,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:50:57,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443127196] [2020-12-09 17:50:57,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/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 17:50:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:50:58,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 17:50:58,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:50:58,356 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 17:50:58,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:50:58,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443127196] [2020-12-09 17:50:58,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:50:58,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:50:58,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529085958] [2020-12-09 17:50:58,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 17:50:58,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:50:58,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 17:50:58,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 17:50:58,370 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2020-12-09 17:50:58,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:50:58,385 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2020-12-09 17:50:58,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 17:50:58,386 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 17:50:58,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:50:58,393 INFO L225 Difference]: With dead ends: 118 [2020-12-09 17:50:58,393 INFO L226 Difference]: Without dead ends: 57 [2020-12-09 17:50:58,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 17:50:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-09 17:50:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-09 17:50:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 17:50:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2020-12-09 17:50:58,419 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2020-12-09 17:50:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:50:58,419 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2020-12-09 17:50:58,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 17:50:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2020-12-09 17:50:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 17:50:58,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:50:58,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:50:58,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 17:50:58,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:50:58,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:50:58,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2020-12-09 17:50:58,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:50:58,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023172054] [2020-12-09 17:50:58,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/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 17:50:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:50:59,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 17:50:59,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:50:59,370 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 17:50:59,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:50:59,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023172054] [2020-12-09 17:50:59,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:50:59,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 17:50:59,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533732742] [2020-12-09 17:50:59,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 17:50:59,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:50:59,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 17:50:59,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:50:59,373 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand 5 states. [2020-12-09 17:51:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:51:00,607 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2020-12-09 17:51:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 17:51:00,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-09 17:51:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:51:00,610 INFO L225 Difference]: With dead ends: 104 [2020-12-09 17:51:00,610 INFO L226 Difference]: Without dead ends: 57 [2020-12-09 17:51:00,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 17:51:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-09 17:51:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-09 17:51:00,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 17:51:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2020-12-09 17:51:00,618 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2020-12-09 17:51:00,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:51:00,618 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2020-12-09 17:51:00,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 17:51:00,618 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2020-12-09 17:51:00,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 17:51:00,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:51:00,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:51:00,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 17:51:00,820 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:51:00,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:51:00,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2020-12-09 17:51:00,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:51:00,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072908615] [2020-12-09 17:51:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/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 17:51:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:51:01,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 17:51:01,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:51:01,448 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 17:51:01,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:51:01,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072908615] [2020-12-09 17:51:01,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:51:01,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 17:51:01,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634342424] [2020-12-09 17:51:01,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 17:51:01,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:51:01,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 17:51:01,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:51:01,451 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 5 states. [2020-12-09 17:51:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:51:01,928 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2020-12-09 17:51:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 17:51:01,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-09 17:51:01,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:51:01,930 INFO L225 Difference]: With dead ends: 69 [2020-12-09 17:51:01,930 INFO L226 Difference]: Without dead ends: 66 [2020-12-09 17:51:01,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 17:51:01,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-09 17:51:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2020-12-09 17:51:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-09 17:51:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2020-12-09 17:51:01,940 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2020-12-09 17:51:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:51:01,941 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2020-12-09 17:51:01,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 17:51:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2020-12-09 17:51:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 17:51:01,942 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:51:01,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:51:02,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 17:51:02,143 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:51:02,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:51:02,145 INFO L82 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2020-12-09 17:51:02,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:51:02,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737018492] [2020-12-09 17:51:02,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 17:51:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:51:02,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 17:51:02,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:51:02,854 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 17:51:03,056 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 17:51:03,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:51:03,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737018492] [2020-12-09 17:51:03,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:51:03,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 17:51:03,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013902559] [2020-12-09 17:51:03,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 17:51:03,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:51:03,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 17:51:03,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-09 17:51:03,059 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand 9 states. [2020-12-09 17:51:04,083 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 17:51:04,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:51:04,315 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-12-09 17:51:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 17:51:04,316 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-12-09 17:51:04,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:51:04,318 INFO L225 Difference]: With dead ends: 66 [2020-12-09 17:51:04,318 INFO L226 Difference]: Without dead ends: 57 [2020-12-09 17:51:04,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-09 17:51:04,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-09 17:51:04,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-09 17:51:04,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-09 17:51:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-12-09 17:51:04,326 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2020-12-09 17:51:04,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:51:04,327 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-12-09 17:51:04,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 17:51:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2020-12-09 17:51:04,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 17:51:04,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:51:04,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:51:04,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 17:51:04,530 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 17:51:04,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:51:04,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2020-12-09 17:51:04,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 17:51:04,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362864099] [2020-12-09 17:51:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 17:51:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:51:06,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 17:51:06,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:51:06,497 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 17:51:06,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 17:51:06,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362864099] [2020-12-09 17:51:06,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:51:06,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:51:06,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968594960] [2020-12-09 17:51:06,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 17:51:06,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 17:51:06,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 17:51:06,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:51:06,499 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 4 states. [2020-12-09 17:51:06,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:51:06,521 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-12-09 17:51:06,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 17:51:06,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-12-09 17:51:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:51:06,522 INFO L225 Difference]: With dead ends: 57 [2020-12-09 17:51:06,522 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 17:51:06,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 17:51:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 17:51:06,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 17:51:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 17:51:06,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 17:51:06,523 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-12-09 17:51:06,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:51:06,524 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 17:51:06,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 17:51:06,524 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 17:51:06,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 17:51:06,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 17:51:06,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 17:51:06,921 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 17:51:07,117 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 17:51:07,297 INFO L258 CegarLoopResult]: At program point L184(lines 119 185) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-12-09 17:51:07,297 INFO L262 CegarLoopResult]: For program point L135(lines 135 136) no Hoare annotation was computed. [2020-12-09 17:51:07,297 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 17:51:07,297 INFO L262 CegarLoopResult]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2020-12-09 17:51:07,298 INFO L258 CegarLoopResult]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2020-12-09 17:51:07,298 INFO L262 CegarLoopResult]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2020-12-09 17:51:07,298 INFO L262 CegarLoopResult]: For program point L170(lines 170 174) no Hoare annotation was computed. [2020-12-09 17:51:07,298 INFO L262 CegarLoopResult]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2020-12-09 17:51:07,298 INFO L262 CegarLoopResult]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2020-12-09 17:51:07,298 INFO L265 CegarLoopResult]: At program point L204(lines 187 205) the Hoare annotation is: true [2020-12-09 17:51:07,298 INFO L262 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-12-09 17:51:07,299 INFO L258 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_asinf_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-12-09 17:51:07,299 INFO L262 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-12-09 17:51:07,299 INFO L262 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-12-09 17:51:07,299 INFO L258 CegarLoopResult]: At program point L23(lines 14 24) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) |ULTIMATE.start_main_#t~short20| (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-12-09 17:51:07,299 INFO L262 CegarLoopResult]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2020-12-09 17:51:07,299 INFO L258 CegarLoopResult]: At program point L106(lines 94 107) the Hoare annotation is: false [2020-12-09 17:51:07,299 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-12-09 17:51:07,300 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 17:51:07,300 INFO L262 CegarLoopResult]: For program point L75(lines 75 84) no Hoare annotation was computed. [2020-12-09 17:51:07,300 INFO L258 CegarLoopResult]: At program point L92(lines 28 93) the Hoare annotation is: false [2020-12-09 17:51:07,300 INFO L262 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-12-09 17:51:07,300 INFO L262 CegarLoopResult]: For program point L159(lines 159 180) no Hoare annotation was computed. [2020-12-09 17:51:07,300 INFO L262 CegarLoopResult]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2020-12-09 17:51:07,300 INFO L262 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-12-09 17:51:07,300 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 17:51:07,301 INFO L262 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-12-09 17:51:07,301 INFO L262 CegarLoopResult]: For program point L128(lines 128 148) no Hoare annotation was computed. [2020-12-09 17:51:07,301 INFO L262 CegarLoopResult]: For program point L79(lines 79 82) no Hoare annotation was computed. [2020-12-09 17:51:07,301 INFO L262 CegarLoopResult]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2020-12-09 17:51:07,301 INFO L258 CegarLoopResult]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2020-12-09 17:51:07,301 INFO L258 CegarLoopResult]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2020-12-09 17:51:07,301 INFO L262 CegarLoopResult]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2020-12-09 17:51:07,301 INFO L262 CegarLoopResult]: For program point L131(lines 131 148) no Hoare annotation was computed. [2020-12-09 17:51:07,301 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L258 CegarLoopResult]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point L66(lines 66 70) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2020-12-09 17:51:07,302 INFO L258 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2020-12-09 17:51:07,302 INFO L262 CegarLoopResult]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2020-12-09 17:51:07,303 INFO L262 CegarLoopResult]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2020-12-09 17:51:07,303 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2020-12-09 17:51:07,303 INFO L258 CegarLoopResult]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2020-12-09 17:51:07,303 INFO L258 CegarLoopResult]: At program point L17-2(lines 17 21) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) |ULTIMATE.start_main_#t~short20| (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-12-09 17:51:07,303 INFO L262 CegarLoopResult]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2020-12-09 17:51:07,303 INFO L262 CegarLoopResult]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2020-12-09 17:51:07,303 INFO L262 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-12-09 17:51:07,303 INFO L262 CegarLoopResult]: For program point L133(lines 133 148) no Hoare annotation was computed. [2020-12-09 17:51:07,304 INFO L262 CegarLoopResult]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2020-12-09 17:51:07,304 INFO L262 CegarLoopResult]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2020-12-09 17:51:07,304 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 17:51:07,304 INFO L262 CegarLoopResult]: For program point L134(lines 134 147) no Hoare annotation was computed. [2020-12-09 17:51:07,304 INFO L262 CegarLoopResult]: For program point L101(lines 101 105) no Hoare annotation was computed. [2020-12-09 17:51:07,304 INFO L262 CegarLoopResult]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2020-12-09 17:51:07,304 INFO L262 CegarLoopResult]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2020-12-09 17:51:07,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,321 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,323 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,326 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,327 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,330 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 17:51:07,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 17:51:07,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:51:07 BoogieIcfgContainer [2020-12-09 17:51:07,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:51:07,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:51:07,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:51:07,334 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:51:07,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:50:57" (3/4) ... [2020-12-09 17:51:07,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 17:51:07,349 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-09 17:51:07,349 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 17:51:07,349 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 17:51:07,350 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 17:51:07,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-12-09 17:51:07,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-12-09 17:51:07,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-12-09 17:51:07,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3c800220-ceb0-4264-b5b0-097111737adb/bin/utaipan/witness.graphml [2020-12-09 17:51:07,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:51:07,401 INFO L168 Benchmark]: Toolchain (without parser) took 22622.33 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 54.3 MB in the beginning and 65.5 MB in the end (delta: -11.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-12-09 17:51:07,401 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:51:07,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.94 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 52.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 17:51:07,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.80 ms. Allocated memory is still 71.3 MB. Free memory was 52.4 MB in the beginning and 49.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:51:07,402 INFO L168 Benchmark]: Boogie Preprocessor took 46.41 ms. Allocated memory is still 71.3 MB. Free memory was 49.9 MB in the beginning and 47.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 17:51:07,403 INFO L168 Benchmark]: RCFGBuilder took 12606.48 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 47.5 MB in the beginning and 50.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:51:07,403 INFO L168 Benchmark]: TraceAbstraction took 9584.28 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 34.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-12-09 17:51:07,404 INFO L168 Benchmark]: Witness Printer took 66.27 ms. Allocated memory is still 86.0 MB. Free memory was 34.8 MB in the beginning and 65.5 MB in the end (delta: -30.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 17:51:07,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.94 ms. Allocated memory is still 71.3 MB. Free memory was 54.1 MB in the beginning and 52.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.80 ms. Allocated memory is still 71.3 MB. Free memory was 52.4 MB in the beginning and 49.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.41 ms. Allocated memory is still 71.3 MB. Free memory was 49.9 MB in the beginning and 47.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12606.48 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 47.5 MB in the beginning and 50.1 MB in the end (delta: -2.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9584.28 ms. Allocated memory is still 86.0 MB. Free memory was 49.7 MB in the beginning and 34.8 MB in the end (delta: 14.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Witness Printer took 66.27 ms. Allocated memory is still 86.0 MB. Free memory was 34.8 MB in the beginning and 65.5 MB in the end (delta: -30.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,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: 200]: 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2020-12-09 17:51:07,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2020-12-09 17:51:07,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 119]: Loop Invariant [2020-12-09 17:51:07,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-12-09 17:51:07,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 122]: Loop Invariant [2020-12-09 17:51:07,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 17:51:07,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 372 SDslu, 487 SDs, 0 SdLazy, 92 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 172 HoareAnnotationTreeSize, 13 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 1 QuantifiedInterpolants, 9166 SizeOfPredicates, 28 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...