./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/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 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 ................................................................................................................................................................................................................................................................................................................. 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_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/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 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:22:42,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:22:42,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:22:42,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:22:42,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:22:42,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:22:42,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:22:42,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:22:42,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:22:42,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:22:42,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:22:42,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:22:42,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:22:42,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:22:42,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:22:42,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:22:42,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:22:42,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:22:42,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:22:42,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:22:42,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:22:42,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:22:42,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:22:42,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:22:42,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:22:42,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:22:42,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:22:42,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:22:42,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:22:42,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:22:42,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:22:42,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:22:42,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:22:42,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:22:42,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:22:42,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:22:42,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:22:42,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:22:42,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:22:42,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:22:42,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:22:42,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:22:42,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:22:42,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:22:42,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:22:42,690 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:22:42,691 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:22:42,691 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:22:42,691 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:22:42,691 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:22:42,691 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:22:42,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:22:42,691 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:22:42,691 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:22:42,692 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:22:42,692 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:22:42,692 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:22:42,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:22:42,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:22:42,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:22:42,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:22:42,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:22:42,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:22:42,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:22:42,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:22:42,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:22:42,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:22:42,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:22:42,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:22:42,695 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:22:42,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:22:42,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:22:42,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:22:42,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:22:42,695 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_b808e36a-4479-474f-a84c-b83a5eb10bb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 [2020-12-09 07:22:42,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:22:42,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:22:42,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:22:42,910 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:22:42,911 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:22:42,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-12-09 07:22:42,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/ff51ab1e0/a0ef37776ea64d2a8ff68c39b391e2c7/FLAG731cd0fb8 [2020-12-09 07:22:43,321 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:22:43,321 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-12-09 07:22:43,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/ff51ab1e0/a0ef37776ea64d2a8ff68c39b391e2c7/FLAG731cd0fb8 [2020-12-09 07:22:43,336 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/ff51ab1e0/a0ef37776ea64d2a8ff68c39b391e2c7 [2020-12-09 07:22:43,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:22:43,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:22:43,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:22:43,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:22:43,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:22:43,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476ca881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43, skipping insertion in model container [2020-12-09 07:22:43,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:22:43,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:22:43,493 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2020-12-09 07:22:43,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:22:43,501 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:22:43,524 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2020-12-09 07:22:43,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:22:43,536 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:22:43,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43 WrapperNode [2020-12-09 07:22:43,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:22:43,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:22:43,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:22:43,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:22:43,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:22:43,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:22:43,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:22:43,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:22:43,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... [2020-12-09 07:22:43,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:22:43,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:22:43,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:22:43,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:22:43,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:22:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 07:22:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:22:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 07:22:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 07:22:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 07:22:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:22:43,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:22:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 07:22:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-09 07:22:43,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:22:44,018 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:22:44,018 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-09 07:22:44,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:44 BoogieIcfgContainer [2020-12-09 07:22:44,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:22:44,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:22:44,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:22:44,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:22:44,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:22:43" (1/3) ... [2020-12-09 07:22:44,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b897f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:44, skipping insertion in model container [2020-12-09 07:22:44,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:43" (2/3) ... [2020-12-09 07:22:44,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b897f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:44, skipping insertion in model container [2020-12-09 07:22:44,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:44" (3/3) ... [2020-12-09 07:22:44,027 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2020-12-09 07:22:44,040 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:22:44,044 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:22:44,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:22:44,076 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:22:44,076 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:22:44,077 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:22:44,077 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:22:44,077 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:22:44,077 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:22:44,077 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:22:44,077 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:22:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-09 07:22:44,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 07:22:44,094 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:22:44,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:22:44,095 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:22:44,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:22:44,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1340340375, now seen corresponding path program 1 times [2020-12-09 07:22:44,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:22:44,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558162692] [2020-12-09 07:22:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:22:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:22:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:22:44,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558162692] [2020-12-09 07:22:44,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:22:44,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:22:44,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253287703] [2020-12-09 07:22:44,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 07:22:44,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:22:44,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 07:22:44,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:22:44,245 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-09 07:22:44,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:22:44,263 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2020-12-09 07:22:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 07:22:44,264 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 07:22:44,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:22:44,271 INFO L225 Difference]: With dead ends: 67 [2020-12-09 07:22:44,271 INFO L226 Difference]: Without dead ends: 32 [2020-12-09 07:22:44,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:22:44,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-09 07:22:44,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-09 07:22:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-09 07:22:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2020-12-09 07:22:44,304 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2020-12-09 07:22:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:22:44,304 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2020-12-09 07:22:44,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 07:22:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-12-09 07:22:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 07:22:44,305 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:22:44,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:22:44,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 07:22:44,306 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:22:44,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:22:44,306 INFO L82 PathProgramCache]: Analyzing trace with hash 932107514, now seen corresponding path program 1 times [2020-12-09 07:22:44,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:22:44,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269343866] [2020-12-09 07:22:44,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:22:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:22:44,368 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:22:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:22:44,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:22:44,420 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 07:22:44,420 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 07:22:44,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 07:22:44,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:22:44 BoogieIcfgContainer [2020-12-09 07:22:44,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:22:44,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:22:44,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:22:44,441 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:22:44,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:44" (3/4) ... [2020-12-09 07:22:44,444 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 07:22:44,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:22:44,445 INFO L168 Benchmark]: Toolchain (without parser) took 1105.84 ms. Allocated memory is still 92.3 MB. Free memory was 53.2 MB in the beginning and 52.2 MB in the end (delta: 994.9 kB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-12-09 07:22:44,446 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 92.3 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:22:44,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.85 ms. Allocated memory is still 92.3 MB. Free memory was 53.0 MB in the beginning and 65.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:22:44,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 63.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:22:44,447 INFO L168 Benchmark]: Boogie Preprocessor took 30.02 ms. Allocated memory is still 92.3 MB. Free memory was 63.3 MB in the beginning and 61.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:22:44,448 INFO L168 Benchmark]: RCFGBuilder took 414.70 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 48.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 07:22:44,448 INFO L168 Benchmark]: TraceAbstraction took 418.84 ms. Allocated memory is still 92.3 MB. Free memory was 48.1 MB in the beginning and 52.8 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:22:44,448 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 92.3 MB. Free memory was 52.8 MB in the beginning and 52.2 MB in the end (delta: 638.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:22:44,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 92.3 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.85 ms. Allocated memory is still 92.3 MB. Free memory was 53.0 MB in the beginning and 65.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.95 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 63.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.02 ms. Allocated memory is still 92.3 MB. Free memory was 63.3 MB in the beginning and 61.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 414.70 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 48.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 418.84 ms. Allocated memory is still 92.3 MB. Free memory was 48.1 MB in the beginning and 52.8 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.02 ms. Allocated memory is still 92.3 MB. Free memory was 52.8 MB in the beginning and 52.2 MB in the end (delta: 638.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 125]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of 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}] [L121] float res = fmod_float(x, y); [L110] return x != x; [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:22:45,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:22:45,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:22:46,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:22:46,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:22:46,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:22:46,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:22:46,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:22:46,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:22:46,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:22:46,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:22:46,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:22:46,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:22:46,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:22:46,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:22:46,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:22:46,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:22:46,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:22:46,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:22:46,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:22:46,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:22:46,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:22:46,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:22:46,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:22:46,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:22:46,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:22:46,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:22:46,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:22:46,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:22:46,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:22:46,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:22:46,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:22:46,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:22:46,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:22:46,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:22:46,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:22:46,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:22:46,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:22:46,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:22:46,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:22:46,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:22:46,043 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 07:22:46,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:22:46,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:22:46,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:22:46,061 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:22:46,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:22:46,061 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:22:46,061 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:22:46,061 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:22:46,061 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:22:46,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:22:46,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:22:46,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:22:46,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:22:46,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:22:46,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:22:46,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:22:46,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:22:46,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 07:22:46,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:22:46,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:22:46,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:22:46,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:22:46,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:22:46,069 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 07:22:46,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 07:22:46,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:22:46,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:22:46,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:22:46,070 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_b808e36a-4479-474f-a84c-b83a5eb10bb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d4c43a5e99017d570432216c5fcf66eb1ad9ac2 [2020-12-09 07:22:46,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:22:46,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:22:46,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:22:46,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:22:46,329 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:22:46,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-12-09 07:22:46,371 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/363ea58b0/799a7bd0ae79480b9cdba6a3a6f8aa7a/FLAG22f8e4ba9 [2020-12-09 07:22:46,763 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:22:46,763 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2020-12-09 07:22:46,770 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/363ea58b0/799a7bd0ae79480b9cdba6a3a6f8aa7a/FLAG22f8e4ba9 [2020-12-09 07:22:46,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/data/363ea58b0/799a7bd0ae79480b9cdba6a3a6f8aa7a [2020-12-09 07:22:46,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:22:46,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:22:46,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:22:46,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:22:46,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:22:46,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:46,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75afb613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46, skipping insertion in model container [2020-12-09 07:22:46,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:46,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:22:46,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:22:46,933 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2020-12-09 07:22:46,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:22:46,943 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:22:46,969 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2020-12-09 07:22:46,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:22:46,992 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:22:46,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46 WrapperNode [2020-12-09 07:22:46,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:22:46,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:22:46,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:22:46,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:22:47,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:22:47,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:22:47,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:22:47,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:22:47,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... [2020-12-09 07:22:47,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:22:47,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:22:47,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:22:47,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:22:47,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:22:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-09 07:22:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 07:22:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:22:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 07:22:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 07:22:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:22:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:22:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 07:22:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 07:22:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:22:49,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:22:49,686 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-09 07:22:49,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:49 BoogieIcfgContainer [2020-12-09 07:22:49,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:22:49,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:22:49,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:22:49,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:22:49,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:22:46" (1/3) ... [2020-12-09 07:22:49,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ee1069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:49, skipping insertion in model container [2020-12-09 07:22:49,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:46" (2/3) ... [2020-12-09 07:22:49,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ee1069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:49, skipping insertion in model container [2020-12-09 07:22:49,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:49" (3/3) ... [2020-12-09 07:22:49,695 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2020-12-09 07:22:49,708 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:22:49,710 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:22:49,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:22:49,733 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:22:49,733 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:22:49,733 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:22:49,733 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:22:49,733 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:22:49,733 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:22:49,733 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:22:49,734 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:22:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-12-09 07:22:49,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 07:22:49,746 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:22:49,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:22:49,746 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:22:49,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:22:49,750 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-12-09 07:22:49,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:22:49,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51914777] [2020-12-09 07:22:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 07:22:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:22:49,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 07:22:49,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:22:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:22:50,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:22:50,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51914777] [2020-12-09 07:22:50,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:22:50,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:22:50,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490497215] [2020-12-09 07:22:50,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 07:22:50,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:22:50,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 07:22:50,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:22:50,037 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-12-09 07:22:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:22:50,050 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2020-12-09 07:22:50,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 07:22:50,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 07:22:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:22:50,057 INFO L225 Difference]: With dead ends: 82 [2020-12-09 07:22:50,057 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 07:22:50,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:22:50,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 07:22:50,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-09 07:22:50,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-09 07:22:50,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-12-09 07:22:50,086 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-12-09 07:22:50,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:22:50,087 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-12-09 07:22:50,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 07:22:50,087 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-12-09 07:22:50,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 07:22:50,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:22:50,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:22:50,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 07:22:50,288 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:22:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:22:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-12-09 07:22:50,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:22:50,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406215133] [2020-12-09 07:22:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 07:22:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:22:50,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 07:22:50,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:22:51,845 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 07:22:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:22:52,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:22:52,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406215133] [2020-12-09 07:22:52,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:22:52,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 07:22:52,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111883545] [2020-12-09 07:22:52,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 07:22:52,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:22:52,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 07:22:52,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 07:22:52,723 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 7 states. [2020-12-09 07:22:56,774 WARN L197 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 07:22:58,462 WARN L197 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 07:23:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:23:00,244 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-12-09 07:23:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 07:23:00,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-09 07:23:00,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:23:00,246 INFO L225 Difference]: With dead ends: 44 [2020-12-09 07:23:00,247 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 07:23:00,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 07:23:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 07:23:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-09 07:23:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-09 07:23:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-12-09 07:23:00,252 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-12-09 07:23:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:23:00,252 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-12-09 07:23:00,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 07:23:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-12-09 07:23:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 07:23:00,253 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:23:00,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:23:00,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 07:23:00,454 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:23:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:23:00,456 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-12-09 07:23:00,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:23:00,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899162949] [2020-12-09 07:23:00,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 07:23:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:23:00,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 07:23:00,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:23:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:23:00,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:23:00,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899162949] [2020-12-09 07:23:00,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:23:00,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 07:23:00,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183737782] [2020-12-09 07:23:00,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 07:23:00,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:23:00,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 07:23:00,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 07:23:00,703 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 4 states. [2020-12-09 07:23:00,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:23:00,739 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-12-09 07:23:00,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 07:23:00,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-09 07:23:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:23:00,740 INFO L225 Difference]: With dead ends: 39 [2020-12-09 07:23:00,740 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 07:23:00,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 07:23:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 07:23:00,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 07:23:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 07:23:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 07:23:00,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-09 07:23:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:23:00,742 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 07:23:00,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 07:23:00,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 07:23:00,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 07:23:00,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 07:23:00,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 07:23:01,333 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 07:23:02,161 WARN L197 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 07:23:02,183 INFO L262 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-12-09 07:23:02,183 INFO L262 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-12-09 07:23:02,183 INFO L262 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-12-09 07:23:02,183 INFO L262 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L258 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L258 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L265 CegarLoopResult]: At program point L129(lines 112 130) the Hoare annotation is: true [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-12-09 07:23:02,184 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-12-09 07:23:02,185 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven)) [2020-12-09 07:23:02,185 INFO L262 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-12-09 07:23:02,185 INFO L262 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-12-09 07:23:02,185 INFO L258 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2020-12-09 07:23:02,185 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-12-09 07:23:02,185 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 07:23:02,185 INFO L262 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-12-09 07:23:02,186 INFO L258 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-12-09 07:23:02,186 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2020-12-09 07:23:02,186 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-12-09 07:23:02,186 INFO L258 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-12-09 07:23:02,186 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-12-09 07:23:02,186 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-12-09 07:23:02,186 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 07:23:02,186 INFO L262 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-12-09 07:23:02,186 INFO L262 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L262 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L262 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L262 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L258 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-12-09 07:23:02,187 INFO L262 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L262 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-12-09 07:23:02,187 INFO L258 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-12-09 07:23:02,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,195 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,195 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,198 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,201 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,201 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,201 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,201 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,202 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,203 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:23:02 BoogieIcfgContainer [2020-12-09 07:23:02,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:23:02,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:23:02,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:23:02,205 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:23:02,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:49" (3/4) ... [2020-12-09 07:23:02,208 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 07:23:02,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 07:23:02,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 07:23:02,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:23:02,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:23:02,240 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b808e36a-4479-474f-a84c-b83a5eb10bb2/bin/utaipan/witness.graphml [2020-12-09 07:23:02,240 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:23:02,241 INFO L168 Benchmark]: Toolchain (without parser) took 15458.40 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 52.3 MB in the beginning and 54.9 MB in the end (delta: -2.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:23:02,241 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:23:02,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.83 ms. Allocated memory is still 69.2 MB. Free memory was 52.1 MB in the beginning and 52.6 MB in the end (delta: -546.9 kB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:23:02,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.03 ms. Allocated memory is still 69.2 MB. Free memory was 52.6 MB in the beginning and 50.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:23:02,243 INFO L168 Benchmark]: Boogie Preprocessor took 28.04 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 48.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:23:02,243 INFO L168 Benchmark]: RCFGBuilder took 2621.27 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 48.5 MB in the beginning and 70.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-12-09 07:23:02,243 INFO L168 Benchmark]: TraceAbstraction took 12514.44 ms. Allocated memory is still 96.5 MB. Free memory was 70.1 MB in the beginning and 57.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-12-09 07:23:02,244 INFO L168 Benchmark]: Witness Printer took 35.77 ms. Allocated memory is still 96.5 MB. Free memory was 57.6 MB in the beginning and 54.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:23:02,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory is still 52.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 209.83 ms. Allocated memory is still 69.2 MB. Free memory was 52.1 MB in the beginning and 52.6 MB in the end (delta: -546.9 kB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.03 ms. Allocated memory is still 69.2 MB. Free memory was 52.6 MB in the beginning and 50.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.04 ms. Allocated memory is still 69.2 MB. Free memory was 50.6 MB in the beginning and 48.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2621.27 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 48.5 MB in the beginning and 70.5 MB in the end (delta: -22.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12514.44 ms. Allocated memory is still 96.5 MB. Free memory was 70.1 MB in the beginning and 57.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Witness Printer took 35.77 ms. Allocated memory is still 96.5 MB. Free memory was 57.6 MB in the beginning and 54.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2020-12-09 07:23:02,250 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,250 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,250 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-12-09 07:23:02,251 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-12-09 07:23:02,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:23:02,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 103 SDslu, 145 SDs, 0 SdLazy, 29 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 44 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 1 QuantifiedInterpolants, 1300 SizeOfPredicates, 15 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...