./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 6017db04fd0c3d76a17184976602c114f74dffa4 ...................................................................................................................................................................................................................................................................................................... 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_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c -s /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 6017db04fd0c3d76a17184976602c114f74dffa4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:02:51,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:02:51,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:02:51,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:02:51,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:02:51,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:02:51,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:02:51,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:02:51,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:02:51,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:02:51,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:02:51,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:02:51,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:02:51,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:02:51,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:02:51,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:02:51,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:02:51,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:02:51,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:02:51,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:02:51,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:02:51,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:02:51,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:02:51,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:02:51,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:02:51,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:02:51,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:02:51,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:02:51,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:02:51,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:02:51,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:02:51,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:02:51,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:02:51,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:02:51,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:02:51,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:02:51,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:02:51,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:02:51,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:02:51,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:02:51,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:02:51,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 17:02:51,302 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:02:51,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:02:51,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 17:02:51,303 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 17:02:51,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 17:02:51,303 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 17:02:51,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 17:02:51,304 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 17:02:51,304 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 17:02:51,304 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 17:02:51,304 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 17:02:51,304 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 17:02:51,305 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 17:02:51,305 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 17:02:51,305 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 17:02:51,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:02:51,306 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:02:51,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:02:51,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:02:51,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:02:51,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:02:51,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:02:51,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:02:51,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:02:51,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:02:51,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:02:51,308 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:02:51,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:02:51,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:02:51,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:02:51,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:02:51,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:02:51,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:02:51,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:02:51,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:02:51,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 17:02:51,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:02:51,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:02:51,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:02:51,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:02:51,310 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_87075245-814e-425a-a2d1-b0ddd3a8f342/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 -> 6017db04fd0c3d76a17184976602c114f74dffa4 [2019-12-07 17:02:51,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:02:51,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:02:51,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:02:51,428 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:02:51,428 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:02:51,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2019-12-07 17:02:51,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/6bbd008f1/4c265ecc692e4783af297964f1904b7d/FLAG0d72ad9ba [2019-12-07 17:02:51,892 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:02:51,892 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2019-12-07 17:02:51,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/6bbd008f1/4c265ecc692e4783af297964f1904b7d/FLAG0d72ad9ba [2019-12-07 17:02:51,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/6bbd008f1/4c265ecc692e4783af297964f1904b7d [2019-12-07 17:02:51,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:02:51,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:02:51,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:02:51,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:02:51,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:02:51,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:02:51" (1/1) ... [2019-12-07 17:02:51,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408e5454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:51, skipping insertion in model container [2019-12-07 17:02:51,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:02:51" (1/1) ... [2019-12-07 17:02:51,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:02:51,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:02:52,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:02:52,096 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:02:52,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:02:52,139 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:02:52,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52 WrapperNode [2019-12-07 17:02:52,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:02:52,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:02:52,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:02:52,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:02:52,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:02:52,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:02:52,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:02:52,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:02:52,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... [2019-12-07 17:02:52,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:02:52,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:02:52,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:02:52,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:02:52,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 [2019-12-07 17:02:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:02:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 17:02:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:02:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 17:02:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:02:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:02:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 17:02:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:02:52,549 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:02:52,549 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 17:02:52,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:02:52 BoogieIcfgContainer [2019-12-07 17:02:52,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:02:52,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:02:52,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:02:52,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:02:52,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:02:51" (1/3) ... [2019-12-07 17:02:52,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d1f199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:02:52, skipping insertion in model container [2019-12-07 17:02:52,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:52" (2/3) ... [2019-12-07 17:02:52,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d1f199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:02:52, skipping insertion in model container [2019-12-07 17:02:52,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:02:52" (3/3) ... [2019-12-07 17:02:52,556 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2019-12-07 17:02:52,563 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:02:52,568 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:02:52,575 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:02:52,591 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:02:52,591 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:02:52,591 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:02:52,591 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:02:52,591 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:02:52,591 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:02:52,591 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:02:52,591 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:02:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 17:02:52,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 17:02:52,605 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:02:52,605 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:02:52,606 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:02:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:02:52,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1936369677, now seen corresponding path program 1 times [2019-12-07 17:02:52,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 17:02:52,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905762396] [2019-12-07 17:02:52,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:02:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:02:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:02:52,699 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905762396] [2019-12-07 17:02:52,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:02:52,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:02:52,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086578256] [2019-12-07 17:02:52,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:02:52,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 17:02:52,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:02:52,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:02:52,714 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 17:02:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:02:52,728 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2019-12-07 17:02:52,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:02:52,729 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-12-07 17:02:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:02:52,736 INFO L225 Difference]: With dead ends: 67 [2019-12-07 17:02:52,736 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 17:02:52,738 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 [2019-12-07 17:02:52,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 17:02:52,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-07 17:02:52,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 17:02:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2019-12-07 17:02:52,763 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2019-12-07 17:02:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:02:52,763 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2019-12-07 17:02:52,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:02:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2019-12-07 17:02:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 17:02:52,764 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:02:52,764 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:02:52,764 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:02:52,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:02:52,764 INFO L82 PathProgramCache]: Analyzing trace with hash 2124741948, now seen corresponding path program 1 times [2019-12-07 17:02:52,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 17:02:52,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747953722] [2019-12-07 17:02:52,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:02:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:02:52,827 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 17:02:52,827 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:02:52,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:02:52 BoogieIcfgContainer [2019-12-07 17:02:52,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:02:52,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:02:52,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:02:52,848 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:02:52,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:02:52" (3/4) ... [2019-12-07 17:02:52,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:02:52,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:02:52,852 INFO L168 Benchmark]: Toolchain (without parser) took 943.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -63.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:02:52,853 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:02:52,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:02:52,853 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:02:52,854 INFO L168 Benchmark]: Boogie Preprocessor took 25.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:02:52,854 INFO L168 Benchmark]: RCFGBuilder took 352.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:02:52,854 INFO L168 Benchmark]: TraceAbstraction took 296.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:02:52,855 INFO L168 Benchmark]: Witness Printer took 2.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:02:52,857 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.12 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 352.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 158]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 144, overapproximation of someBinaryArithmeticFLOAToperation at line 116, overapproximation of bitwiseAnd at line 115. Possible FailurePath: [L11-L15] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L17] static const float zero_log = 0.0; [L97-L100] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L102] static const float zero = 0.0; [L153] float x = 0.0f / 0.0f; [L105] float y, z; [L106] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L109] ieee_float_shape_type gf_u; [L110] gf_u.value = (x) [L111] EXPR gf_u.word [L111] (hx) = gf_u.word [L114] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L115] COND TRUE ((hx & 0x7fffffff) == 0) [L116] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L154] float res = __ieee754_log10f(x); [L144] return x != x; [L157] COND TRUE !isnan_float(res) [L158] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 0.1.25-f470102 [2019-12-07 17:02:54,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:02:54,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:02:54,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:02:54,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:02:54,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:02:54,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:02:54,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:02:54,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:02:54,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:02:54,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:02:54,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:02:54,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:02:54,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:02:54,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:02:54,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:02:54,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:02:54,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:02:54,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:02:54,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:02:54,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:02:54,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:02:54,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:02:54,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:02:54,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:02:54,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:02:54,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:02:54,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:02:54,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:02:54,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:02:54,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:02:54,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:02:54,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:02:54,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:02:54,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:02:54,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:02:54,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:02:54,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:02:54,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:02:54,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:02:54,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:02:54,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 17:02:54,219 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:02:54,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:02:54,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 17:02:54,220 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 17:02:54,220 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 17:02:54,220 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 17:02:54,220 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 17:02:54,220 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 17:02:54,220 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 17:02:54,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:02:54,221 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:02:54,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:02:54,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:02:54,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:02:54,222 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:02:54,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:02:54,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:02:54,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:02:54,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:02:54,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:02:54,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:02:54,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:02:54,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:02:54,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:02:54,224 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 17:02:54,224 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:02:54,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:02:54,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:02:54,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:02:54,225 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_87075245-814e-425a-a2d1-b0ddd3a8f342/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 -> 6017db04fd0c3d76a17184976602c114f74dffa4 [2019-12-07 17:02:54,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:02:54,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:02:54,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:02:54,398 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:02:54,398 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:02:54,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2019-12-07 17:02:54,442 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/48702c307/3c1d490bd32248aeb34916ff669ae709/FLAG258f030b5 [2019-12-07 17:02:54,822 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:02:54,822 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2019-12-07 17:02:54,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/48702c307/3c1d490bd32248aeb34916ff669ae709/FLAG258f030b5 [2019-12-07 17:02:55,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/data/48702c307/3c1d490bd32248aeb34916ff669ae709 [2019-12-07 17:02:55,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:02:55,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:02:55,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:02:55,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:02:55,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:02:55,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197b78eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55, skipping insertion in model container [2019-12-07 17:02:55,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:02:55,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:02:55,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:02:55,397 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:02:55,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:02:55,477 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:02:55,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55 WrapperNode [2019-12-07 17:02:55,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:02:55,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:02:55,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:02:55,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:02:55,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:02:55,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:02:55,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:02:55,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:02:55,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... [2019-12-07 17:02:55,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:02:55,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:02:55,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:02:55,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:02:55,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 [2019-12-07 17:02:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:02:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 17:02:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 17:02:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:02:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:02:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 17:02:55,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 17:02:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:03:08,319 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:03:08,319 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 17:03:08,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:03:08 BoogieIcfgContainer [2019-12-07 17:03:08,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:03:08,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:03:08,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:03:08,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:03:08,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:02:55" (1/3) ... [2019-12-07 17:03:08,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565bde17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:03:08, skipping insertion in model container [2019-12-07 17:03:08,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:02:55" (2/3) ... [2019-12-07 17:03:08,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565bde17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:03:08, skipping insertion in model container [2019-12-07 17:03:08,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:03:08" (3/3) ... [2019-12-07 17:03:08,324 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2019-12-07 17:03:08,331 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:03:08,335 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:03:08,342 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:03:08,357 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:03:08,357 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:03:08,357 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:03:08,358 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:03:08,358 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:03:08,358 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:03:08,358 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:03:08,358 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:03:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-12-07 17:03:08,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 17:03:08,371 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:08,372 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:08,372 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:08,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:08,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2019-12-07 17:03:08,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:08,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822193705] [2019-12-07 17:03:08,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 [2019-12-07 17:03:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:08,940 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 17:03:08,944 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:08,954 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:08,958 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822193705] [2019-12-07 17:03:08,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:08,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 17:03:08,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119488679] [2019-12-07 17:03:08,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:03:08,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:08,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:03:08,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:03:08,974 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-12-07 17:03:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:08,993 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2019-12-07 17:03:08,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:03:08,995 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 17:03:08,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:09,005 INFO L225 Difference]: With dead ends: 86 [2019-12-07 17:03:09,005 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 17:03:09,007 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:03:09,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 17:03:09,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 17:03:09,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 17:03:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2019-12-07 17:03:09,031 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2019-12-07 17:03:09,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:09,031 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2019-12-07 17:03:09,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:03:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2019-12-07 17:03:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 17:03:09,032 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:09,032 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:09,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:03:09,234 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:09,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:09,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2019-12-07 17:03:09,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:09,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890668041] [2019-12-07 17:03:09,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 [2019-12-07 17:03:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:09,821 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:03:09,823 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:09,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:09,872 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:09,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890668041] [2019-12-07 17:03:09,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:09,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 17:03:09,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147292431] [2019-12-07 17:03:09,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:03:09,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:09,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:03:09,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:03:09,918 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2019-12-07 17:03:10,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:10,677 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-12-07 17:03:10,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:03:10,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 17:03:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:10,679 INFO L225 Difference]: With dead ends: 51 [2019-12-07 17:03:10,679 INFO L226 Difference]: Without dead ends: 46 [2019-12-07 17:03:10,679 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:03:10,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-07 17:03:10,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2019-12-07 17:03:10,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 17:03:10,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2019-12-07 17:03:10,685 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2019-12-07 17:03:10,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:10,685 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2019-12-07 17:03:10,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:03:10,686 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2019-12-07 17:03:10,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 17:03:10,686 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:10,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:10,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:03:10,887 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:10,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:10,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2019-12-07 17:03:10,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:10,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093772580] [2019-12-07 17:03:10,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 [2019-12-07 17:03:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:11,507 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 17:03:11,509 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:11,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:11,601 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:15,582 WARN L192 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-12-07 17:03:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:15,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093772580] [2019-12-07 17:03:15,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:15,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 17:03:15,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180240127] [2019-12-07 17:03:15,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 17:03:15,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:15,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 17:03:15,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:03:15,595 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand 10 states. [2019-12-07 17:03:38,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:38,517 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2019-12-07 17:03:38,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:03:38,601 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 17:03:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:38,602 INFO L225 Difference]: With dead ends: 52 [2019-12-07 17:03:38,602 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 17:03:38,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-12-07 17:03:38,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 17:03:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2019-12-07 17:03:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 17:03:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2019-12-07 17:03:38,609 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 11 [2019-12-07 17:03:38,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:38,609 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2019-12-07 17:03:38,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 17:03:38,610 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2019-12-07 17:03:38,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 17:03:38,610 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:38,611 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:38,811 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 17:03:38,812 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:38,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:38,813 INFO L82 PathProgramCache]: Analyzing trace with hash -256490092, now seen corresponding path program 1 times [2019-12-07 17:03:38,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:38,814 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036244713] [2019-12-07 17:03:38,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/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 [2019-12-07 17:03:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:39,595 INFO L264 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 17:03:39,597 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:39,656 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:39,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036244713] [2019-12-07 17:03:39,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:39,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 17:03:39,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970370051] [2019-12-07 17:03:39,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 17:03:39,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:39,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 17:03:39,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:03:39,722 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 8 states. [2019-12-07 17:03:39,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:39,814 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-12-07 17:03:39,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:03:39,814 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-12-07 17:03:39,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:39,815 INFO L225 Difference]: With dead ends: 41 [2019-12-07 17:03:39,815 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:03:39,815 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:03:39,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:03:39,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:03:39,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:03:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:03:39,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-12-07 17:03:39,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:39,816 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:03:39,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 17:03:39,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:03:39,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:03:40,017 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 17:03:40,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 17:03:40,285 INFO L242 CegarLoopResult]: At program point L93(lines 19 95) the Hoare annotation is: false [2019-12-07 17:03:40,285 INFO L246 CegarLoopResult]: For program point L36(lines 36 44) no Hoare annotation was computed. [2019-12-07 17:03:40,285 INFO L246 CegarLoopResult]: For program point L36-1(lines 36 44) no Hoare annotation was computed. [2019-12-07 17:03:40,285 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 17:03:40,286 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 17:03:40,286 INFO L246 CegarLoopResult]: For program point L119(lines 119 120) no Hoare annotation was computed. [2019-12-07 17:03:40,286 INFO L242 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: (and (not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_log10f_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 17:03:40,286 INFO L249 CegarLoopResult]: At program point L162(lines 146 163) the Hoare annotation is: true [2019-12-07 17:03:40,286 INFO L246 CegarLoopResult]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-12-07 17:03:40,286 INFO L246 CegarLoopResult]: For program point L121(lines 121 129) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L121-1(lines 121 129) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L55(lines 55 71) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L39-1(lines 39 43) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L242 CegarLoopResult]: At program point L39-2(lines 39 43) the Hoare annotation is: false [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L56(lines 56 63) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L23-1(lines 23 27) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L242 CegarLoopResult]: At program point L23-2(lines 23 27) the Hoare annotation is: false [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L23-3(lines 23 27) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2019-12-07 17:03:40,287 INFO L242 CegarLoopResult]: At program point L48-2(lines 48 52) the Hoare annotation is: false [2019-12-07 17:03:40,287 INFO L246 CegarLoopResult]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point L65(lines 65 70) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point L90(lines 90 93) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point L57(lines 57 62) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point L115(lines 115 116) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L246 CegarLoopResult]: For program point L82(lines 82 94) no Hoare annotation was computed. [2019-12-07 17:03:40,288 INFO L242 CegarLoopResult]: At program point L140(lines 104 141) the Hoare annotation is: (and (not (= (_ bv0 32) (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_log10f_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 17:03:40,289 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 17:03:40,289 INFO L246 CegarLoopResult]: For program point L157(lines 157 160) no Hoare annotation was computed. [2019-12-07 17:03:40,289 INFO L246 CegarLoopResult]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2019-12-07 17:03:40,289 INFO L242 CegarLoopResult]: At program point L124-2(lines 124 128) the Hoare annotation is: false [2019-12-07 17:03:40,289 INFO L246 CegarLoopResult]: For program point L108-1(lines 108 112) no Hoare annotation was computed. [2019-12-07 17:03:40,289 INFO L242 CegarLoopResult]: At program point L108-2(lines 108 112) the Hoare annotation is: (and (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 17:03:40,289 INFO L246 CegarLoopResult]: For program point L108-3(lines 108 112) no Hoare annotation was computed. [2019-12-07 17:03:40,289 INFO L246 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-12-07 17:03:40,290 INFO L246 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2019-12-07 17:03:40,290 INFO L246 CegarLoopResult]: For program point L117(lines 117 118) no Hoare annotation was computed. [2019-12-07 17:03:40,290 INFO L246 CegarLoopResult]: For program point L84(lines 84 88) no Hoare annotation was computed. [2019-12-07 17:03:40,290 INFO L246 CegarLoopResult]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2019-12-07 17:03:40,290 INFO L242 CegarLoopResult]: At program point L134-2(lines 134 138) the Hoare annotation is: false [2019-12-07 17:03:40,290 INFO L246 CegarLoopResult]: For program point L134-3(lines 134 138) no Hoare annotation was computed. [2019-12-07 17:03:40,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,304 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,304 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,304 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,310 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:03:40 BoogieIcfgContainer [2019-12-07 17:03:40,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:03:40,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:03:40,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:03:40,315 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:03:40,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:03:08" (3/4) ... [2019-12-07 17:03:40,318 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:03:40,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2019-12-07 17:03:40,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 17:03:40,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 17:03:40,349 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0bv32 == ~bvand32(2147483647bv32, hx)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 17:03:40,349 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0bv32 == ~bvand32(2147483647bv32, hx)) && 1bv32 == \result) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 17:03:40,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_87075245-814e-425a-a2d1-b0ddd3a8f342/bin/utaipan/witness.graphml [2019-12-07 17:03:40,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:03:40,385 INFO L168 Benchmark]: Toolchain (without parser) took 45167.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 951.0 MB in the beginning and 883.1 MB in the end (delta: 68.0 MB). Peak memory consumption was 188.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:40,385 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:03:40,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:40,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:40,386 INFO L168 Benchmark]: Boogie Preprocessor took 29.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:03:40,386 INFO L168 Benchmark]: RCFGBuilder took 12778.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:40,387 INFO L168 Benchmark]: TraceAbstraction took 31994.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 889.8 MB in the end (delta: 173.0 MB). Peak memory consumption was 173.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:40,387 INFO L168 Benchmark]: Witness Printer took 69.52 ms. Allocated memory is still 1.1 GB. Free memory was 889.8 MB in the beginning and 883.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:40,388 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12778.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 31994.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 889.8 MB in the end (delta: 173.0 MB). Peak memory consumption was 173.0 MB. Max. memory is 11.5 GB. * Witness Printer took 69.52 ms. Allocated memory is still 1.1 GB. Free memory was 889.8 MB in the beginning and 883.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 158]: 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: 108]: Loop Invariant [2019-12-07 17:03:40,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 144]: Loop Invariant [2019-12-07 17:03:40,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,395 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((!(0bv32 == ~bvand32(2147483647bv32, hx)) && 1bv32 == \result) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 104]: Loop Invariant [2019-12-07 17:03:40,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 17:03:40,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 17:03:40,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((!(0bv32 == ~bvand32(2147483647bv32, hx)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: SAFE, OverallTime: 31.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 138 SDtfs, 174 SDslu, 248 SDs, 0 SdLazy, 142 SolverSat, 12 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 22.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 101 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 89 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 12 QuantifiedInterpolants, 6858 SizeOfPredicates, 24 NumberOfNonLiveVariables, 211 ConjunctsInSsa, 28 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...