./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/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 bb223ac5dd337697f7c4caeca580bc7e9e7345b8 .............................................................................................................................................................................................................................................................................................................................. 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_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/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 bb223ac5dd337697f7c4caeca580bc7e9e7345b8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:22,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:22,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:22,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:22,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:22,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:22,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:22,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:22,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:22,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:22,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:22,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:22,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:22,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:22,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:22,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:22,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:22,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:22,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:22,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:22,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:22,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:22,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:22,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:22,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:22,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:22,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:22,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:22,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:22,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:22,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:22,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:22,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:22,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:22,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:22,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:22,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:22,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:22,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:22,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:22,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:22,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:06:22,576 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:22,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:22,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:22,578 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:22,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:22,579 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:22,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:22,579 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:22,579 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:22,579 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:22,580 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:22,581 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:22,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:22,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:22,581 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:22,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:22,582 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:22,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:22,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:22,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:22,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:22,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:22,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:22,583 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:22,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:22,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:22,584 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:22,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:22,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:22,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:22,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:22,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:22,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:22,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:22,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:22,587 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:22,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:22,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:22,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:22,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:22,588 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_2e813315-503d-490a-a5de-b505741f8548/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2020-11-22 13:06:22,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:22,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:22,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:22,889 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:22,890 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:22,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-22 13:06:22,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/a86c4c53b/612c85b1ce364167932289952df3b6bb/FLAGb747968d4 [2020-11-22 13:06:23,412 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:23,413 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-22 13:06:23,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/a86c4c53b/612c85b1ce364167932289952df3b6bb/FLAGb747968d4 [2020-11-22 13:06:23,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/a86c4c53b/612c85b1ce364167932289952df3b6bb [2020-11-22 13:06:23,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:23,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:23,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:23,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:23,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:23,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:23" (1/1) ... [2020-11-22 13:06:23,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b667d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:23, skipping insertion in model container [2020-11-22 13:06:23,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:23" (1/1) ... [2020-11-22 13:06:23,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:23,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:24,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:24,064 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:24,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:24,144 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:24,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24 WrapperNode [2020-11-22 13:06:24,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:24,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:24,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:24,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:24,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:24,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:24,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:24,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:24,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:24,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:24,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:24,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:24,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:24,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:06:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 13:06:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:06:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:06:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:06:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-22 13:06:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:24,983 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:24,983 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-22 13:06:24,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:24 BoogieIcfgContainer [2020-11-22 13:06:24,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:24,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:24,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:24,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:24,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:23" (1/3) ... [2020-11-22 13:06:24,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec31c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:24, skipping insertion in model container [2020-11-22 13:06:24,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24" (2/3) ... [2020-11-22 13:06:24,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec31c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:24, skipping insertion in model container [2020-11-22 13:06:24,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:24" (3/3) ... [2020-11-22 13:06:24,996 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2020-11-22 13:06:25,007 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:25,012 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:25,026 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:25,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:25,049 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:25,049 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:25,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:25,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:25,049 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:25,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:25,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-22 13:06:25,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:06:25,064 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:25,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:25,065 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:25,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:25,071 INFO L82 PathProgramCache]: Analyzing trace with hash -843734617, now seen corresponding path program 1 times [2020-11-22 13:06:25,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:25,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385295767] [2020-11-22 13:06:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:25,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:25,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385295767] [2020-11-22 13:06:25,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:25,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:25,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987803727] [2020-11-22 13:06:25,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:25,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:25,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:25,234 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-11-22 13:06:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:25,247 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2020-11-22 13:06:25,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:25,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-22 13:06:25,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:25,260 INFO L225 Difference]: With dead ends: 49 [2020-11-22 13:06:25,260 INFO L226 Difference]: Without dead ends: 23 [2020-11-22 13:06:25,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:25,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-22 13:06:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-22 13:06:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-22 13:06:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-11-22 13:06:25,350 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 8 [2020-11-22 13:06:25,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:25,351 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-11-22 13:06:25,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-22 13:06:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:06:25,352 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:25,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:25,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:25,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:25,357 INFO L82 PathProgramCache]: Analyzing trace with hash 406054834, now seen corresponding path program 1 times [2020-11-22 13:06:25,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:25,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183809899] [2020-11-22 13:06:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:25,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:25,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:25,545 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:06:25,545 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:06:25,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:06:25,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:25 BoogieIcfgContainer [2020-11-22 13:06:25,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:25,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:25,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:25,610 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:25,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:24" (3/4) ... [2020-11-22 13:06:25,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:06:25,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:25,618 INFO L168 Benchmark]: Toolchain (without parser) took 1827.44 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 76.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:25,619 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:25,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.34 ms. Allocated memory is still 115.3 MB. Free memory was 83.1 MB in the beginning and 88.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:25,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 86.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:25,622 INFO L168 Benchmark]: Boogie Preprocessor took 49.33 ms. Allocated memory is still 115.3 MB. Free memory was 86.7 MB in the beginning and 84.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:25,624 INFO L168 Benchmark]: RCFGBuilder took 740.91 ms. Allocated memory is still 115.3 MB. Free memory was 84.6 MB in the beginning and 49.0 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:25,624 INFO L168 Benchmark]: TraceAbstraction took 621.87 ms. Allocated memory is still 115.3 MB. Free memory was 48.8 MB in the beginning and 77.5 MB in the end (delta: -28.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:25,625 INFO L168 Benchmark]: Witness Printer took 5.21 ms. Allocated memory is still 115.3 MB. Free memory was 77.5 MB in the beginning and 76.9 MB in the end (delta: 649.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:25,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 355.34 ms. Allocated memory is still 115.3 MB. Free memory was 83.1 MB in the beginning and 88.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 86.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.33 ms. Allocated memory is still 115.3 MB. Free memory was 86.7 MB in the beginning and 84.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 740.91 ms. Allocated memory is still 115.3 MB. Free memory was 84.6 MB in the beginning and 49.0 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 621.87 ms. Allocated memory is still 115.3 MB. Free memory was 48.8 MB in the beginning and 77.5 MB in the end (delta: -28.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.21 ms. Allocated memory is still 115.3 MB. Free memory was 77.5 MB in the beginning and 76.9 MB in the end (delta: 649.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someUnaryFLOAToperation at line 139, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L139] float x = -0.0f; [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L65] COND TRUE ix >= 0x50800000 [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L140] float res = atan_float(x); [L143] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L143] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_0620b.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={9:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 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=25occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:28,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:28,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:28,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:28,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:28,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:28,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:28,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:28,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:28,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:28,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:28,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:28,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:28,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:28,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:28,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:28,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:28,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:28,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:28,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:28,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:28,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:28,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:28,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:28,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:28,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:28,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:28,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:28,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:28,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:28,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:28,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:28,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:28,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:28,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:28,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:28,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:28,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:28,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:28,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:28,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:28,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:06:28,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:28,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:28,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:28,263 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:28,263 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:28,263 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:28,264 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:28,264 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:28,264 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:28,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:28,267 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:28,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:28,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:28,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:28,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:28,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:28,269 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:28,269 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:06:28,269 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:06:28,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:28,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:28,270 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:28,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:28,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:28,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:06:28,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:28,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:28,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:28,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:28,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:28,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:28,273 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:06:28,273 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:06:28,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:28,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:28,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:28,274 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_2e813315-503d-490a-a5de-b505741f8548/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb223ac5dd337697f7c4caeca580bc7e9e7345b8 [2020-11-22 13:06:28,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:28,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:28,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:28,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:28,732 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:28,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-22 13:06:28,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/ea7dc3fe7/3640d85cedb64519b17a3009311eec16/FLAG842546100 [2020-11-22 13:06:29,312 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:29,320 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2020-11-22 13:06:29,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/ea7dc3fe7/3640d85cedb64519b17a3009311eec16/FLAG842546100 [2020-11-22 13:06:29,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/data/ea7dc3fe7/3640d85cedb64519b17a3009311eec16 [2020-11-22 13:06:29,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:29,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:29,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:29,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:29,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:29,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:29" (1/1) ... [2020-11-22 13:06:29,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7af80b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:29, skipping insertion in model container [2020-11-22 13:06:29,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:29" (1/1) ... [2020-11-22 13:06:29,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:29,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:29,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:29,996 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:30,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:30,135 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:30,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30 WrapperNode [2020-11-22 13:06:30,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:30,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:30,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:30,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:30,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:30,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:30,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:30,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:30,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... [2020-11-22 13:06:30,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:30,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:30,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:30,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:30,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-22 13:06:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:06:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-22 13:06:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:06:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:30,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:30,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-22 13:06:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:06:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:38,863 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:38,864 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-22 13:06:38,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:38 BoogieIcfgContainer [2020-11-22 13:06:38,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:38,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:38,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:38,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:38,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:29" (1/3) ... [2020-11-22 13:06:38,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e4988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:38, skipping insertion in model container [2020-11-22 13:06:38,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:30" (2/3) ... [2020-11-22 13:06:38,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e4988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:38, skipping insertion in model container [2020-11-22 13:06:38,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:38" (3/3) ... [2020-11-22 13:06:38,873 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2020-11-22 13:06:38,883 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:38,892 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:38,904 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:38,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:38,941 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:38,941 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:38,941 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:38,941 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:38,941 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:38,941 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:38,941 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:38,956 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-22 13:06:38,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:06:38,961 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:38,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:38,962 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:38,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:38,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-11-22 13:06:38,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:38,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325775816] [2020-11-22 13:06:38,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:39,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:06:39,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:39,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:39,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325775816] [2020-11-22 13:06:39,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:39,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:06:39,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639661412] [2020-11-22 13:06:39,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:39,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:39,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:39,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:39,967 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-22 13:06:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:39,985 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-22 13:06:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:39,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-22 13:06:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:39,995 INFO L225 Difference]: With dead ends: 73 [2020-11-22 13:06:39,995 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:06:39,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:06:40,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:06:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:06:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-22 13:06:40,029 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-11-22 13:06:40,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,029 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-22 13:06:40,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-22 13:06:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:06:40,031 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:40,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:40,247 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:40,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-11-22 13:06:40,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:40,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083059001] [2020-11-22 13:06:40,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:41,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:06:41,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:41,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:41,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:41,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083059001] [2020-11-22 13:06:41,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:41,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 13:06:41,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125163055] [2020-11-22 13:06:41,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:06:41,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:41,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:06:41,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:41,337 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-11-22 13:06:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:45,845 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2020-11-22 13:06:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:45,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-22 13:06:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:45,848 INFO L225 Difference]: With dead ends: 57 [2020-11-22 13:06:45,848 INFO L226 Difference]: Without dead ends: 32 [2020-11-22 13:06:45,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:06:45,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-22 13:06:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-11-22 13:06:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-22 13:06:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-11-22 13:06:45,852 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2020-11-22 13:06:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:45,853 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-11-22 13:06:45,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:06:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-11-22 13:06:45,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 13:06:45,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:45,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:46,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:06:46,054 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:46,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:46,055 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2020-11-22 13:06:46,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:46,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741696286] [2020-11-22 13:06:46,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:46,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:46,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:46,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:47,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741696286] [2020-11-22 13:06:47,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:47,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-22 13:06:47,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286501645] [2020-11-22 13:06:47,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:06:47,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:47,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:06:47,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:47,002 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-11-22 13:06:50,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:50,759 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-11-22 13:06:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:50,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-11-22 13:06:50,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:50,762 INFO L225 Difference]: With dead ends: 35 [2020-11-22 13:06:50,762 INFO L226 Difference]: Without dead ends: 32 [2020-11-22 13:06:50,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:06:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-22 13:06:50,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-11-22 13:06:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-22 13:06:50,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-11-22 13:06:50,767 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-11-22 13:06:50,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:50,767 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-22 13:06:50,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:06:50,767 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-11-22 13:06:50,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:06:50,768 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:50,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:50,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:06:50,969 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:50,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:50,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2020-11-22 13:06:50,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:50,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266569478] [2020-11-22 13:06:50,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:52,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:52,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:52,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:53,169 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-22 13:06:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:53,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266569478] [2020-11-22 13:06:53,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:53,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:06:53,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412732335] [2020-11-22 13:06:53,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:53,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:53,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:53,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:53,278 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-11-22 13:06:53,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:53,383 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-11-22 13:06:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:53,387 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-22 13:06:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:53,388 INFO L225 Difference]: With dead ends: 32 [2020-11-22 13:06:53,388 INFO L226 Difference]: Without dead ends: 18 [2020-11-22 13:06:53,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:53,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-22 13:06:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-22 13:06:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-22 13:06:53,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-11-22 13:06:53,391 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-11-22 13:06:53,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:53,392 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-11-22 13:06:53,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:53,392 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-22 13:06:53,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:06:53,392 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:53,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:53,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:06:53,606 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:53,607 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2020-11-22 13:06:53,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:53,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735955175] [2020-11-22 13:06:53,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:54,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-22 13:06:54,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:54,610 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:06:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:54,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:54,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735955175] [2020-11-22 13:06:54,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:54,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-22 13:06:54,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451216103] [2020-11-22 13:06:54,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-22 13:06:54,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:54,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-22 13:06:54,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-22 13:06:54,975 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-11-22 13:06:55,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:55,296 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-22 13:06:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:06:55,298 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-11-22 13:06:55,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:55,299 INFO L225 Difference]: With dead ends: 18 [2020-11-22 13:06:55,299 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:55,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-22 13:06:55,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:55,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:55,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-22 13:06:55,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:55,300 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:55,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-22 13:06:55,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:55,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:55,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:06:55,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:55,746 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-22 13:06:55,746 INFO L274 CegarLoopResult]: For program point L143-2(lines 143 146) no Hoare annotation was computed. [2020-11-22 13:06:55,747 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:06:55,747 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:06:55,747 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:55,747 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:06:55,747 INFO L270 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: false [2020-11-22 13:06:55,747 INFO L274 CegarLoopResult]: For program point L111(lines 111 116) no Hoare annotation was computed. [2020-11-22 13:06:55,747 INFO L270 CegarLoopResult]: At program point L128(lines 119 129) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) |ULTIMATE.start_main_#t~short36|)) [2020-11-22 13:06:55,747 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short36|)) [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L81(lines 81 97) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L73(lines 73 98) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L65(lines 65 72) no Hoare annotation was computed. [2020-11-22 13:06:55,748 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:06:55,749 INFO L274 CegarLoopResult]: For program point L90(lines 90 96) no Hoare annotation was computed. [2020-11-22 13:06:55,749 INFO L274 CegarLoopResult]: For program point L90-2(lines 73 98) no Hoare annotation was computed. [2020-11-22 13:06:55,749 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:06:55,749 INFO L277 CegarLoopResult]: At program point L148(lines 131 149) the Hoare annotation is: true [2020-11-22 13:06:55,749 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-22 13:06:55,749 INFO L274 CegarLoopResult]: For program point L82(lines 82 88) no Hoare annotation was computed. [2020-11-22 13:06:55,749 INFO L274 CegarLoopResult]: For program point L115-2(line 115) no Hoare annotation was computed. [2020-11-22 13:06:55,749 INFO L270 CegarLoopResult]: At program point L115-3(lines 55 117) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start_atan_float_~x .cse0) (= |ULTIMATE.start_atan_float_#res| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))))) [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point L74(lines 74 77) no Hoare annotation was computed. [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point L75(lines 75 76) no Hoare annotation was computed. [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-11-22 13:06:55,750 INFO L270 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-11-22 13:06:55,750 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-22 13:06:55,751 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: false [2020-11-22 13:06:55,751 INFO L274 CegarLoopResult]: For program point L68(lines 68 71) no Hoare annotation was computed. [2020-11-22 13:06:55,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,769 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,771 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,776 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,778 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,783 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,784 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:55 BoogieIcfgContainer [2020-11-22 13:06:55,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:55,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:55,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:55,786 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:55,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:38" (3/4) ... [2020-11-22 13:06:55,788 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:55,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-22 13:06:55,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-22 13:06:55,806 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:55,806 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:55,827 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) [2020-11-22 13:06:55,828 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-22 13:06:55,828 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-22 13:06:55,870 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e813315-503d-490a-a5de-b505741f8548/bin/utaipan/witness.graphml [2020-11-22 13:06:55,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:55,872 INFO L168 Benchmark]: Toolchain (without parser) took 26171.66 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 34.8 MB in the beginning and 33.8 MB in the end (delta: 946.5 kB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:55,872 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:55,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.93 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 36.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:55,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.83 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 33.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:55,873 INFO L168 Benchmark]: Boogie Preprocessor took 44.75 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 31.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:55,874 INFO L168 Benchmark]: RCFGBuilder took 8634.32 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 31.4 MB in the beginning and 47.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:55,874 INFO L168 Benchmark]: TraceAbstraction took 16918.63 ms. Allocated memory is still 69.2 MB. Free memory was 47.4 MB in the beginning and 39.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:55,875 INFO L168 Benchmark]: Witness Printer took 84.79 ms. Allocated memory is still 69.2 MB. Free memory was 39.4 MB in the beginning and 33.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:55,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 432.93 ms. Allocated memory is still 56.6 MB. Free memory was 34.6 MB in the beginning and 36.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.83 ms. Allocated memory is still 56.6 MB. Free memory was 36.2 MB in the beginning and 33.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.75 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 31.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8634.32 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 31.4 MB in the beginning and 47.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16918.63 ms. Allocated memory is still 69.2 MB. Free memory was 47.4 MB in the beginning and 39.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * Witness Printer took 84.79 ms. Allocated memory is still 69.2 MB. Free memory was 39.4 MB in the beginning and 33.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 55]: Loop Invariant [2020-11-22 13:06:55,888 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,890 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 119]: Loop Invariant [2020-11-22 13:06:55,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2020-11-22 13:06:55,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 59]: Loop Invariant [2020-11-22 13:06:55,898 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,899 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:55,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:55,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 183 SDslu, 183 SDs, 0 SdLazy, 80 SolverSat, 13 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 136 HoareAnnotationTreeSize, 7 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 9709 SizeOfPredicates, 28 NumberOfNonLiveVariables, 523 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...