./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ............................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:50:52,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:50:52,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:50:52,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:50:52,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:50:52,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:50:52,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:50:52,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:50:52,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:50:52,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:50:52,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:50:52,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:50:52,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:50:52,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:50:52,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:50:52,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:50:52,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:50:52,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:50:52,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:50:52,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:50:52,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:50:52,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:50:52,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:50:52,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:50:52,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:50:52,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:50:52,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:50:52,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:50:52,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:50:52,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:50:52,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:50:52,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:50:52,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:50:52,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:50:52,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:50:52,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:50:52,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:50:52,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:50:52,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:50:52,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:50:52,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:50:52,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:50:52,232 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:50:52,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:50:52,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:50:52,233 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:50:52,234 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:50:52,234 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:50:52,234 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:50:52,234 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:50:52,235 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:50:52,235 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:50:52,235 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:50:52,235 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:50:52,235 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:50:52,236 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:50:52,236 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:50:52,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:50:52,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:50:52,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:50:52,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:50:52,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:50:52,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:50:52,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:50:52,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:50:52,238 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:50:52,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:50:52,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:50:52,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:50:52,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:50:52,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:50:52,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:50:52,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:50:52,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:50:52,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:50:52,240 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:50:52,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:50:52,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:50:52,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:50:52,241 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f0371cc8-191e-4f6f-af53-836978b341c2/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(__VERIFIER_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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2019-11-26 02:50:52,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:50:52,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:50:52,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:50:52,421 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:50:52,422 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:50:52,423 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-11-26 02:50:52,462 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/cbde07c5d/3084dd79396b49beae4f7d0951903a7e/FLAGae9d14df9 [2019-11-26 02:50:52,867 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:50:52,868 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-11-26 02:50:52,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/cbde07c5d/3084dd79396b49beae4f7d0951903a7e/FLAGae9d14df9 [2019-11-26 02:50:52,885 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/cbde07c5d/3084dd79396b49beae4f7d0951903a7e [2019-11-26 02:50:52,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:50:52,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:50:52,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:52,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:50:52,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:50:52,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:52" (1/1) ... [2019-11-26 02:50:52,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f191f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:52, skipping insertion in model container [2019-11-26 02:50:52,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:52" (1/1) ... [2019-11-26 02:50:52,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:50:52,921 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:50:53,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:53,159 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:50:53,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:53,210 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:50:53,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53 WrapperNode [2019-11-26 02:50:53,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:53,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:53,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:50:53,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:50:53,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:53,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:50:53,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:50:53,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:50:53,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... [2019-11-26 02:50:53,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:50:53,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:50:53,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:50:53,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:50:53,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/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 [2019-11-26 02:50:53,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:50:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:50:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-26 02:50:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-26 02:50:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:50:53,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:50:53,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:50:53,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-26 02:50:53,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:50:53,770 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:50:53,771 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-26 02:50:53,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:53 BoogieIcfgContainer [2019-11-26 02:50:53,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:50:53,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:50:53,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:50:53,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:50:53,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:50:52" (1/3) ... [2019-11-26 02:50:53,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fdf207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:50:53, skipping insertion in model container [2019-11-26 02:50:53,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:53" (2/3) ... [2019-11-26 02:50:53,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fdf207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:50:53, skipping insertion in model container [2019-11-26 02:50:53,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:53" (3/3) ... [2019-11-26 02:50:53,778 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2019-11-26 02:50:53,785 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:50:53,791 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:50:53,798 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:50:53,817 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:50:53,817 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:50:53,817 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:50:53,817 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:50:53,818 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:50:53,818 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:50:53,818 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:50:53,818 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:50:53,831 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-26 02:50:53,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:50:53,835 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:53,836 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:50:53,836 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:53,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:53,841 INFO L82 PathProgramCache]: Analyzing trace with hash -836543721, now seen corresponding path program 1 times [2019-11-26 02:50:53,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:53,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366666451] [2019-11-26 02:50:53,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:50:53,959 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366666451] [2019-11-26 02:50:53,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:53,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:50:53,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919080387] [2019-11-26 02:50:53,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:50:53,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:53,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:50:53,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:50:53,979 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-26 02:50:53,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:53,997 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2019-11-26 02:50:53,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:50:53,998 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:50:53,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:54,008 INFO L225 Difference]: With dead ends: 59 [2019-11-26 02:50:54,008 INFO L226 Difference]: Without dead ends: 28 [2019-11-26 02:50:54,011 INFO L630 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 [2019-11-26 02:50:54,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-26 02:50:54,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-26 02:50:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-26 02:50:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2019-11-26 02:50:54,042 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 7 [2019-11-26 02:50:54,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:54,043 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-11-26 02:50:54,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:50:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2019-11-26 02:50:54,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:50:54,044 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:54,044 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:50:54,044 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:54,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:54,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2065220720, now seen corresponding path program 1 times [2019-11-26 02:50:54,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:54,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154802982] [2019-11-26 02:50:54,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:50:54,138 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:50:54,138 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:50:54,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:50:54 BoogieIcfgContainer [2019-11-26 02:50:54,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:50:54,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:50:54,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:50:54,168 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:50:54,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:53" (3/4) ... [2019-11-26 02:50:54,172 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:50:54,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:50:54,174 INFO L168 Benchmark]: Toolchain (without parser) took 1284.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -135.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:54,174 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:54,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:54,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:54,176 INFO L168 Benchmark]: Boogie Preprocessor took 32.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:54,176 INFO L168 Benchmark]: RCFGBuilder took 485.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:54,177 INFO L168 Benchmark]: TraceAbstraction took 394.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:54,177 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:54,180 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -204.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 485.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 394.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L117] float x = 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={3:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={3:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={3:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={3:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] __VERIFIER_error() VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={3:0}, ln2LO_exp={6:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 38 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=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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, 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 0.1.24-6b5699a [2019-11-26 02:50:56,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:50:56,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:50:56,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:50:56,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:50:56,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:50:56,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:50:56,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:50:56,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:50:56,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:50:56,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:50:56,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:50:56,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:50:56,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:50:56,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:50:56,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:50:56,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:50:56,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:50:56,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:50:56,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:50:56,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:50:56,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:50:56,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:50:56,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:50:56,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:50:56,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:50:56,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:50:56,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:50:56,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:50:56,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:50:56,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:50:56,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:50:56,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:50:56,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:50:56,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:50:56,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:50:56,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:50:56,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:50:56,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:50:56,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:50:56,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:50:56,148 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:50:56,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:50:56,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:50:56,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:50:56,168 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:50:56,169 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:50:56,169 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:50:56,169 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:50:56,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:50:56,170 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:50:56,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:50:56,171 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:50:56,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:50:56,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:50:56,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:50:56,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:50:56,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:50:56,173 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:50:56,173 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:50:56,173 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:50:56,174 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:50:56,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:50:56,174 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:50:56,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:50:56,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:50:56,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:50:56,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:50:56,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:50:56,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:50:56,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:50:56,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:50:56,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:50:56,176 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:50:56,177 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:50:56,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:50:56,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:50:56,177 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f0371cc8-191e-4f6f-af53-836978b341c2/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(__VERIFIER_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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2019-11-26 02:50:56,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:50:56,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:50:56,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:50:56,451 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:50:56,452 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:50:56,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-11-26 02:50:56,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/69feece35/0d46cd5b782c4eb6bdb2091634aea78a/FLAGcb00a2b5a [2019-11-26 02:50:56,925 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:50:56,926 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-11-26 02:50:56,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/69feece35/0d46cd5b782c4eb6bdb2091634aea78a/FLAGcb00a2b5a [2019-11-26 02:50:57,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/data/69feece35/0d46cd5b782c4eb6bdb2091634aea78a [2019-11-26 02:50:57,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:50:57,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:50:57,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:57,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:50:57,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:50:57,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc9e0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57, skipping insertion in model container [2019-11-26 02:50:57,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:50:57,358 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:50:57,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:57,618 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:50:57,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:57,744 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:50:57,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57 WrapperNode [2019-11-26 02:50:57,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:57,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:57,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:50:57,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:50:57,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:57,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:50:57,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:50:57,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:50:57,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... [2019-11-26 02:50:57,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:50:57,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:50:57,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:50:57,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:50:57,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/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 [2019-11-26 02:50:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-26 02:50:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:50:57,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-26 02:50:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:50:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:50:57,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:50:57,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-26 02:50:57,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:50:57,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:51:06,691 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:51:06,692 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-26 02:51:06,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:06 BoogieIcfgContainer [2019-11-26 02:51:06,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:51:06,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:51:06,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:51:06,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:51:06,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:50:57" (1/3) ... [2019-11-26 02:51:06,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7b2f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:51:06, skipping insertion in model container [2019-11-26 02:51:06,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:57" (2/3) ... [2019-11-26 02:51:06,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7b2f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:51:06, skipping insertion in model container [2019-11-26 02:51:06,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:06" (3/3) ... [2019-11-26 02:51:06,700 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2019-11-26 02:51:06,708 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:51:06,714 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:51:06,721 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:51:06,738 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:51:06,738 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:51:06,738 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:51:06,739 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:51:06,739 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:51:06,739 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:51:06,739 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:51:06,739 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:51:06,750 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-11-26 02:51:06,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:51:06,755 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:06,756 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:06,756 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:06,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:06,760 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-11-26 02:51:06,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:51:06,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305989309] [2019-11-26 02:51:06,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/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 [2019-11-26 02:51:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:07,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-26 02:51:07,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:51:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:07,295 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:51:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:07,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305989309] [2019-11-26 02:51:07,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:07,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:51:07,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748858138] [2019-11-26 02:51:07,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:51:07,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:51:07,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:51:07,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:51:07,328 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-11-26 02:51:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:07,346 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-11-26 02:51:07,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:51:07,347 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-26 02:51:07,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:07,357 INFO L225 Difference]: With dead ends: 70 [2019-11-26 02:51:07,357 INFO L226 Difference]: Without dead ends: 33 [2019-11-26 02:51:07,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:51:07,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-26 02:51:07,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-26 02:51:07,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-26 02:51:07,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-26 02:51:07,400 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-11-26 02:51:07,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:07,400 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-26 02:51:07,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:51:07,400 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-26 02:51:07,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:51:07,401 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:07,401 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:07,601 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:51:07,602 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:07,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:07,602 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-11-26 02:51:07,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:51:07,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458409731] [2019-11-26 02:51:07,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/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 [2019-11-26 02:51:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:08,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:51:08,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:51:08,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:08,187 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:51:08,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:08,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458409731] [2019-11-26 02:51:08,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:08,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-26 02:51:08,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172169794] [2019-11-26 02:51:08,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:51:08,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:51:08,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:51:08,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:51:08,247 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2019-11-26 02:51:18,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:18,296 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2019-11-26 02:51:18,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:51:18,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-26 02:51:18,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:18,401 INFO L225 Difference]: With dead ends: 54 [2019-11-26 02:51:18,402 INFO L226 Difference]: Without dead ends: 33 [2019-11-26 02:51:18,403 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:51:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-26 02:51:18,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2019-11-26 02:51:18,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 02:51:18,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-11-26 02:51:18,408 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-11-26 02:51:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:18,408 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-11-26 02:51:18,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:51:18,409 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-11-26 02:51:18,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:51:18,409 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:18,410 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:18,625 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 02:51:18,626 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:18,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:18,626 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2019-11-26 02:51:18,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:51:18,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548056083] [2019-11-26 02:51:18,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/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 [2019-11-26 02:51:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:19,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:51:19,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:51:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:19,277 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:51:20,415 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-11-26 02:51:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:20,517 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548056083] [2019-11-26 02:51:20,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:20,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-26 02:51:20,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20928568] [2019-11-26 02:51:20,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 02:51:20,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:51:20,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 02:51:20,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:51:20,519 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2019-11-26 02:51:31,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:31,936 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-26 02:51:31,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:51:31,937 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-11-26 02:51:31,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:31,938 INFO L225 Difference]: With dead ends: 33 [2019-11-26 02:51:31,938 INFO L226 Difference]: Without dead ends: 29 [2019-11-26 02:51:31,939 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:51:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-26 02:51:31,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-26 02:51:31,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-26 02:51:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-26 02:51:31,943 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2019-11-26 02:51:31,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:31,944 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-26 02:51:31,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 02:51:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-26 02:51:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-26 02:51:31,945 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:51:31,946 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:51:32,151 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 02:51:32,151 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:51:32,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:51:32,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2019-11-26 02:51:32,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:51:32,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155802156] [2019-11-26 02:51:32,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/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 [2019-11-26 02:51:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:51:33,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-26 02:51:33,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:51:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:33,451 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:51:33,888 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-26 02:51:34,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:51:34,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155802156] [2019-11-26 02:51:34,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:51:34,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-26 02:51:34,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122946714] [2019-11-26 02:51:34,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:51:34,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:51:34,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:51:34,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:51:34,013 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2019-11-26 02:51:34,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:51:34,089 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-26 02:51:34,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:51:34,091 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-11-26 02:51:34,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:51:34,091 INFO L225 Difference]: With dead ends: 29 [2019-11-26 02:51:34,092 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:51:34,092 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:51:34,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:51:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:51:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:51:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:51:34,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-26 02:51:34,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:51:34,093 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:51:34,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:51:34,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:51:34,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:51:34,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-26 02:51:34,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:51:34,400 INFO L447 ceAbstractionStarter]: At program point L126(lines 111 127) the Hoare annotation is: true [2019-11-26 02:51:34,400 INFO L444 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-11-26 02:51:34,400 INFO L444 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-11-26 02:51:34,400 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-11-26 02:51:34,400 INFO L444 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-11-26 02:51:34,401 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-11-26 02:51:34,402 INFO L444 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-11-26 02:51:34,402 INFO L444 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-11-26 02:51:34,402 INFO L444 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-26 02:51:34,402 INFO L440 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-26 02:51:34,402 INFO L444 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-11-26 02:51:34,402 INFO L444 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-11-26 02:51:34,402 INFO L444 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-11-26 02:51:34,403 INFO L444 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-11-26 02:51:34,403 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:51:34,403 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-11-26 02:51:34,403 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-11-26 02:51:34,403 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-26 02:51:34,403 INFO L440 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)))) (and (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24)) (= ~one_exp~0 .cse0) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add currentRoundingMode .cse0 (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-26 02:51:34,404 INFO L444 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-11-26 02:51:34,404 INFO L440 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24)) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_exp~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:51:34,404 INFO L444 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-11-26 02:51:34,404 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:51:34,404 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-11-26 02:51:34,404 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-11-26 02:51:34,404 INFO L444 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-11-26 02:51:34,405 INFO L444 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-11-26 02:51:34,405 INFO L444 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-11-26 02:51:34,405 INFO L440 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-11-26 02:51:34,425 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,437 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,454 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,455 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:51:34 BoogieIcfgContainer [2019-11-26 02:51:34,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:51:34,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:51:34,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:51:34,459 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:51:34,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:51:06" (3/4) ... [2019-11-26 02:51:34,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:51:34,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-26 02:51:34,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:51:34,476 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:51:34,497 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:51:34,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0371cc8-191e-4f6f-af53-836978b341c2/bin/utaipan/witness.graphml [2019-11-26 02:51:34,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:51:34,542 INFO L168 Benchmark]: Toolchain (without parser) took 37237.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 961.8 MB in the beginning and 963.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 157.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:34,542 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:34,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:34,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:51:34,543 INFO L168 Benchmark]: Boogie Preprocessor took 42.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:34,544 INFO L168 Benchmark]: RCFGBuilder took 8855.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:34,544 INFO L168 Benchmark]: TraceAbstraction took 27763.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 138.3 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:34,545 INFO L168 Benchmark]: Witness Printer took 82.90 ms. Allocated memory is still 1.2 GB. Free memory was 970.1 MB in the beginning and 963.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:51:34,547 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 437.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -187.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8855.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27763.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 138.3 MB). Peak memory consumption was 138.3 MB. Max. memory is 11.5 GB. * Witness Printer took 82.90 ms. Allocated memory is still 1.2 GB. Free memory was 970.1 MB in the beginning and 963.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 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 * 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-11-26 02:51:34,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 41]: Loop Invariant [2019-11-26 02:51:34,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:51:34,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:51:34,563 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 27.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 171 SDs, 0 SdLazy, 57 SolverSat, 5 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 20.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 48 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9500 SizeOfPredicates, 19 NumberOfNonLiveVariables, 257 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...