./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f ................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:21:56,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:21:56,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:21:56,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:21:56,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:21:56,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:21:56,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:21:56,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:21:56,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:21:56,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:21:56,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:21:56,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:21:56,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:21:56,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:21:56,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:21:56,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:21:56,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:21:56,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:21:56,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:21:56,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:21:56,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:21:56,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:21:56,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:21:56,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:21:56,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:21:56,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:21:56,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:21:56,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:21:56,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:21:56,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:21:56,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:21:56,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:21:56,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:21:56,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:21:56,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:21:56,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:21:56,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:21:56,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:21:56,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:21:56,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:21:56,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:21:56,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:21:56,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:21:56,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:21:56,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:21:56,679 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:21:56,679 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:21:56,680 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:21:56,680 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:21:56,680 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:21:56,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:21:56,680 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:21:56,682 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:21:56,682 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:21:56,682 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:21:56,682 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:21:56,683 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:21:56,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:21:56,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:21:56,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:21:56,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:21:56,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:21:56,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:21:56,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:21:56,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:21:56,685 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:21:56,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:21:56,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:21:56,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:21:56,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:21:56,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:21:56,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:21:56,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:21:56,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:21:56,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:21:56,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:21:56,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:21:56,688 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:21:56,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:21:56,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:21:56,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:21:56,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:21:56,689 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_b8225c5f-b06b-402b-9b91-60762bb8b686/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f [2020-11-30 03:21:57,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:21:57,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:21:57,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:21:57,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:21:57,081 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:21:57,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-11-30 03:21:57,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/12c3825a6/ed7021bd6f8e42b7b63b7592866e6161/FLAG63e72161c [2020-11-30 03:21:57,731 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:21:57,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-11-30 03:21:57,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/12c3825a6/ed7021bd6f8e42b7b63b7592866e6161/FLAG63e72161c [2020-11-30 03:21:58,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/12c3825a6/ed7021bd6f8e42b7b63b7592866e6161 [2020-11-30 03:21:58,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:21:58,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:21:58,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:21:58,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:21:58,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:21:58,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2775edff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58, skipping insertion in model container [2020-11-30 03:21:58,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:21:58,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:21:58,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:21:58,398 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:21:58,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:21:58,500 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:21:58,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58 WrapperNode [2020-11-30 03:21:58,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:21:58,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:21:58,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:21:58,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:21:58,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:21:58,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:21:58,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:21:58,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:21:58,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... [2020-11-30 03:21:58,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:21:58,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:21:58,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:21:58,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:21:58,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:21:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:21:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:21:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 03:21:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 03:21:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 03:21:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:21:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:21:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:21:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 03:21:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:21:59,359 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:21:59,359 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-30 03:21:59,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:21:59 BoogieIcfgContainer [2020-11-30 03:21:59,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:21:59,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:21:59,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:21:59,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:21:59,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:21:58" (1/3) ... [2020-11-30 03:21:59,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5450a601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:21:59, skipping insertion in model container [2020-11-30 03:21:59,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:21:58" (2/3) ... [2020-11-30 03:21:59,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5450a601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:21:59, skipping insertion in model container [2020-11-30 03:21:59,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:21:59" (3/3) ... [2020-11-30 03:21:59,371 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2020-11-30 03:21:59,383 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:21:59,388 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:21:59,401 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:21:59,427 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:21:59,427 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:21:59,427 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:21:59,428 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:21:59,428 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:21:59,428 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:21:59,428 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:21:59,428 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:21:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 03:21:59,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:21:59,447 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:21:59,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:21:59,448 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:21:59,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:21:59,454 INFO L82 PathProgramCache]: Analyzing trace with hash 530996632, now seen corresponding path program 1 times [2020-11-30 03:21:59,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:21:59,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831370172] [2020-11-30 03:21:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:21:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:21:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:21:59,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831370172] [2020-11-30 03:21:59,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:21:59,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:21:59,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772467052] [2020-11-30 03:21:59,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:21:59,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:21:59,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:21:59,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:21:59,694 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 03:21:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:21:59,716 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2020-11-30 03:21:59,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:21:59,717 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 03:21:59,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:21:59,725 INFO L225 Difference]: With dead ends: 67 [2020-11-30 03:21:59,726 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 03:21:59,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:21:59,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 03:21:59,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-30 03:21:59,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 03:21:59,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2020-11-30 03:21:59,762 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2020-11-30 03:21:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:21:59,763 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2020-11-30 03:21:59,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:21:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-11-30 03:21:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:21:59,764 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:21:59,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:21:59,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:21:59,765 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:21:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:21:59,765 INFO L82 PathProgramCache]: Analyzing trace with hash 539083387, now seen corresponding path program 1 times [2020-11-30 03:21:59,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:21:59,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092850427] [2020-11-30 03:21:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:21:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:21:59,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:21:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:21:59,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:21:59,944 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:21:59,948 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:21:59,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:21:59,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:21:59 BoogieIcfgContainer [2020-11-30 03:21:59,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:21:59,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:21:59,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:21:59,999 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:22:00,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:21:59" (3/4) ... [2020-11-30 03:22:00,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:22:00,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:22:00,010 INFO L168 Benchmark]: Toolchain (without parser) took 1932.83 ms. Allocated memory is still 117.4 MB. Free memory was 80.3 MB in the beginning and 77.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 367.1 kB. Max. memory is 16.1 GB. [2020-11-30 03:22:00,011 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 117.4 MB. Free memory was 96.8 MB in the beginning and 96.8 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:22:00,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.74 ms. Allocated memory is still 117.4 MB. Free memory was 80.2 MB in the beginning and 91.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:00,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 89.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:00,015 INFO L168 Benchmark]: Boogie Preprocessor took 61.91 ms. Allocated memory is still 117.4 MB. Free memory was 89.4 MB in the beginning and 87.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:00,017 INFO L168 Benchmark]: RCFGBuilder took 747.45 ms. Allocated memory is still 117.4 MB. Free memory was 87.7 MB in the beginning and 56.2 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:00,019 INFO L168 Benchmark]: TraceAbstraction took 633.94 ms. Allocated memory is still 117.4 MB. Free memory was 55.4 MB in the beginning and 77.3 MB in the end (delta: -21.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:22:00,020 INFO L168 Benchmark]: Witness Printer took 6.91 ms. Allocated memory is still 117.4 MB. Free memory was 77.3 MB in the beginning and 77.0 MB in the end (delta: 338.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:22:00,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 117.4 MB. Free memory was 96.8 MB in the beginning and 96.8 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 426.74 ms. Allocated memory is still 117.4 MB. Free memory was 80.2 MB in the beginning and 91.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 89.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.91 ms. Allocated memory is still 117.4 MB. Free memory was 89.4 MB in the beginning and 87.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 747.45 ms. Allocated memory is still 117.4 MB. Free memory was 87.7 MB in the beginning and 56.2 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 633.94 ms. Allocated memory is still 117.4 MB. Free memory was 55.4 MB in the beginning and 77.3 MB in the end (delta: -21.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.91 ms. Allocated memory is still 117.4 MB. Free memory was 77.3 MB in the beginning and 77.0 MB in the end (delta: 338.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L118] float x = __VERIFIER_nondet_float(); [L119] float y = -0.0f; [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L120] float res = fmod_float(x, y); [L110] return x != x; [L123] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1121b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:22:03,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:22:03,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:22:03,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:22:03,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:22:03,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:22:03,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:22:03,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:22:03,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:22:03,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:22:03,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:22:03,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:22:03,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:22:03,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:22:03,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:22:03,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:22:03,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:22:03,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:22:03,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:22:03,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:22:03,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:22:03,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:22:03,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:22:03,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:22:03,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:22:03,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:22:03,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:22:03,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:22:03,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:22:03,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:22:03,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:22:03,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:22:03,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:22:03,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:22:03,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:22:03,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:22:03,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:22:03,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:22:03,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:22:03,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:22:03,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:22:03,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:22:03,302 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:22:03,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:22:03,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:22:03,305 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:22:03,305 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:22:03,306 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:22:03,307 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:22:03,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:22:03,307 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:22:03,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:22:03,309 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:22:03,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:22:03,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:22:03,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:22:03,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:22:03,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:22:03,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:22:03,311 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:22:03,311 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:22:03,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:22:03,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:22:03,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:22:03,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:22:03,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:22:03,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:22:03,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:22:03,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:22:03,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:22:03,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:22:03,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:22:03,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:22:03,316 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:22:03,316 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:22:03,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:22:03,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:22:03,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:22:03,317 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_b8225c5f-b06b-402b-9b91-60762bb8b686/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f [2020-11-30 03:22:03,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:22:03,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:22:03,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:22:03,808 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:22:03,809 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:22:03,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-11-30 03:22:03,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/75b9d800a/9a11ee5cfe44459d84d8fcb01c280f6b/FLAGf303b6ce2 [2020-11-30 03:22:04,615 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:22:04,616 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-11-30 03:22:04,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/75b9d800a/9a11ee5cfe44459d84d8fcb01c280f6b/FLAGf303b6ce2 [2020-11-30 03:22:04,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/data/75b9d800a/9a11ee5cfe44459d84d8fcb01c280f6b [2020-11-30 03:22:04,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:22:04,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:22:04,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:22:04,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:22:04,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:22:04,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:22:04" (1/1) ... [2020-11-30 03:22:04,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dcf5606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:04, skipping insertion in model container [2020-11-30 03:22:04,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:22:04" (1/1) ... [2020-11-30 03:22:04,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:22:05,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:22:05,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:22:05,322 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:22:05,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:22:05,455 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:22:05,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05 WrapperNode [2020-11-30 03:22:05,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:22:05,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:22:05,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:22:05,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:22:05,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:22:05,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:22:05,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:22:05,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:22:05,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... [2020-11-30 03:22:05,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:22:05,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:22:05,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:22:05,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:22:05,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:22:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 03:22:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:22:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:22:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 03:22:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 03:22:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:22:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:22:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 03:22:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 03:22:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:22:08,929 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:22:08,930 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-30 03:22:08,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:22:08 BoogieIcfgContainer [2020-11-30 03:22:08,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:22:08,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:22:08,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:22:08,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:22:08,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:22:04" (1/3) ... [2020-11-30 03:22:08,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d259b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:22:08, skipping insertion in model container [2020-11-30 03:22:08,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:22:05" (2/3) ... [2020-11-30 03:22:08,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d259b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:22:08, skipping insertion in model container [2020-11-30 03:22:08,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:22:08" (3/3) ... [2020-11-30 03:22:08,944 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2020-11-30 03:22:08,959 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:22:08,965 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:22:08,982 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:22:09,021 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:22:09,022 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:22:09,022 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:22:09,022 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:22:09,023 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:22:09,023 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:22:09,023 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:22:09,023 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:22:09,040 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-11-30 03:22:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:22:09,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:22:09,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:22:09,048 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:22:09,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:22:09,056 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-11-30 03:22:09,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:22:09,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487806445] [2020-11-30 03:22:09,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 03:22:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:22:09,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 03:22:09,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:22:09,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:22:09,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:22:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:22:09,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487806445] [2020-11-30 03:22:09,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:22:09,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 03:22:09,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546014126] [2020-11-30 03:22:09,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:22:09,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:22:09,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:22:09,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:22:09,562 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-11-30 03:22:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:22:09,589 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-11-30 03:22:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:22:09,591 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 03:22:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:22:09,603 INFO L225 Difference]: With dead ends: 83 [2020-11-30 03:22:09,603 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 03:22:09,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:22:09,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 03:22:09,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 03:22:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 03:22:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-30 03:22:09,651 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-11-30 03:22:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:22:09,652 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-30 03:22:09,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:22:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-30 03:22:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:22:09,653 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:22:09,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:22:09,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:22:09,879 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:22:09,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:22:09,880 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-11-30 03:22:09,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:22:09,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177793613] [2020-11-30 03:22:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 03:22:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:22:10,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 03:22:10,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:22:12,371 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-11-30 03:22:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:22:13,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:22:17,835 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-30 03:22:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:22:18,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177793613] [2020-11-30 03:22:18,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:22:18,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-30 03:22:18,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197745903] [2020-11-30 03:22:18,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 03:22:18,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:22:18,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 03:22:18,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2020-11-30 03:22:18,150 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2020-11-30 03:22:27,579 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2020-11-30 03:22:32,832 WARN L193 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-11-30 03:22:36,947 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-11-30 03:22:37,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:22:37,221 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-11-30 03:22:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 03:22:37,235 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-30 03:22:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:22:37,236 INFO L225 Difference]: With dead ends: 44 [2020-11-30 03:22:37,236 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 03:22:37,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2020-11-30 03:22:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 03:22:37,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 03:22:37,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 03:22:37,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-11-30 03:22:37,246 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-11-30 03:22:37,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:22:37,247 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-11-30 03:22:37,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 03:22:37,247 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-11-30 03:22:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:22:37,248 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:22:37,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:22:37,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 03:22:37,470 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:22:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:22:37,473 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-11-30 03:22:37,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:22:37,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349134590] [2020-11-30 03:22:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 03:22:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:22:37,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 03:22:37,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:22:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:22:37,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:22:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:22:37,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349134590] [2020-11-30 03:22:37,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:22:37,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 03:22:37,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761643483] [2020-11-30 03:22:37,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 03:22:37,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:22:37,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 03:22:37,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:22:37,742 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2020-11-30 03:22:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:22:37,892 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-30 03:22:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:22:37,893 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-11-30 03:22:37,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:22:37,893 INFO L225 Difference]: With dead ends: 39 [2020-11-30 03:22:37,893 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:22:37,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:22:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:22:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:22:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:22:37,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:22:37,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-30 03:22:37,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:22:37,895 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:22:37,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 03:22:37,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:22:37,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:22:38,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 03:22:38,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:22:40,156 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-30 03:22:41,386 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 17 [2020-11-30 03:22:41,396 INFO L274 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-11-30 03:22:41,396 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-11-30 03:22:41,397 INFO L274 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 03:22:41,397 INFO L274 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-11-30 03:22:41,398 INFO L270 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2020-11-30 03:22:41,398 INFO L274 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L270 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-11-30 03:22:41,399 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L274 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L274 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-11-30 03:22:41,399 INFO L277 CegarLoopResult]: At program point L128(lines 112 129) the Hoare annotation is: true [2020-11-30 03:22:41,400 INFO L274 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 03:22:41,400 INFO L274 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-11-30 03:22:41,400 INFO L274 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-11-30 03:22:41,400 INFO L274 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-11-30 03:22:41,400 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2020-11-30 03:22:41,400 INFO L274 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-11-30 03:22:41,400 INFO L274 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-11-30 03:22:41,401 INFO L270 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2020-11-30 03:22:41,401 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-30 03:22:41,401 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:22:41,401 INFO L274 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-11-30 03:22:41,401 INFO L274 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-11-30 03:22:41,401 INFO L270 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-11-30 03:22:41,402 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 03:22:41,402 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-11-30 03:22:41,402 INFO L270 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-11-30 03:22:41,402 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-30 03:22:41,402 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-30 03:22:41,402 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:22:41,402 INFO L274 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-11-30 03:22:41,402 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-30 03:22:41,403 INFO L274 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-11-30 03:22:41,403 INFO L274 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-11-30 03:22:41,403 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-11-30 03:22:41,403 INFO L270 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-11-30 03:22:41,403 INFO L274 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-11-30 03:22:41,403 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-11-30 03:22:41,403 INFO L270 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-11-30 03:22:41,415 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,416 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,417 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,417 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,424 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,424 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,424 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,425 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,428 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,428 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,429 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,431 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,432 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:22:41 BoogieIcfgContainer [2020-11-30 03:22:41,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:22:41,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:22:41,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:22:41,436 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:22:41,437 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:22:08" (3/4) ... [2020-11-30 03:22:41,441 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:22:41,455 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 03:22:41,455 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 03:22:41,456 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:22:41,456 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:22:41,499 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b8225c5f-b06b-402b-9b91-60762bb8b686/bin/utaipan/witness.graphml [2020-11-30 03:22:41,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:22:41,501 INFO L168 Benchmark]: Toolchain (without parser) took 36561.55 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 34.0 MB in the beginning and 42.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:41,502 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:22:41,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.71 ms. Allocated memory is still 54.5 MB. Free memory was 33.7 MB in the beginning and 36.2 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:41,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.33 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 34.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:41,504 INFO L168 Benchmark]: Boogie Preprocessor took 99.82 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 32.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:41,505 INFO L168 Benchmark]: RCFGBuilder took 3270.30 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 32.1 MB in the beginning and 39.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:41,506 INFO L168 Benchmark]: TraceAbstraction took 32500.75 ms. Allocated memory is still 73.4 MB. Free memory was 38.9 MB in the beginning and 45.2 MB in the end (delta: -6.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:41,507 INFO L168 Benchmark]: Witness Printer took 63.72 ms. Allocated memory is still 73.4 MB. Free memory was 44.7 MB in the beginning and 42.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:22:41,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.71 ms. Allocated memory is still 54.5 MB. Free memory was 33.7 MB in the beginning and 36.2 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.33 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 34.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.82 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 32.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3270.30 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 32.1 MB in the beginning and 39.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 32500.75 ms. Allocated memory is still 73.4 MB. Free memory was 38.9 MB in the beginning and 45.2 MB in the end (delta: -6.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 63.72 ms. Allocated memory is still 73.4 MB. Free memory was 44.7 MB in the beginning and 42.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2020-11-30 03:22:41,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,527 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-11-30 03:22:41,531 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,531 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,534 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,534 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,534 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-11-30 03:22:41,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && 1bv32 == \result) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-11-30 03:22:41,535 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:22:41,536 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:22:41,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 109 SDslu, 245 SDs, 0 SdLazy, 45 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 64 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 4137 SizeOfPredicates, 16 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...