./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:18:36,442 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:18:36,443 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:18:36,449 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:18:36,449 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:18:36,449 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:18:36,450 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:18:36,451 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:18:36,452 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:18:36,452 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:18:36,452 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:18:36,453 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:18:36,453 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:18:36,454 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:18:36,454 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:18:36,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:18:36,455 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:18:36,456 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:18:36,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:18:36,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:18:36,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:18:36,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:18:36,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:18:36,460 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:18:36,460 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:18:36,461 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:18:36,461 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:18:36,462 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:18:36,462 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:18:36,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:18:36,463 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:18:36,463 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:18:36,463 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:18:36,463 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:18:36,464 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:18:36,464 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:18:36,464 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:18:36,471 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:18:36,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:18:36,472 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:18:36,472 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:18:36,472 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:18:36,473 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:18:36,473 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:18:36,473 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:18:36,473 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:18:36,473 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:18:36,473 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:18:36,473 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:18:36,473 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:18:36,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:18:36,474 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:18:36,474 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:18:36,474 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:18:36,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:18:36,474 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:18:36,475 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:18:36,475 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:18:36,475 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:18:36,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:18:36,475 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:18:36,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:18:36,475 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:18:36,475 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:18:36,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:18:36,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:18:36,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:18:36,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:18:36,476 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:18:36,476 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:18:36,476 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:18:36,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:18:36,477 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:18:36,477 INFO L133 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/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 -> 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 [2018-12-09 00:18:36,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:18:36,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:18:36,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:18:36,503 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:18:36,503 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:18:36,504 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-12-09 00:18:36,538 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/875546571/9248b5532b94403eae9e838582707e57/FLAG2e86912a1 [2018-12-09 00:18:36,923 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:18:36,923 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-12-09 00:18:36,927 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/875546571/9248b5532b94403eae9e838582707e57/FLAG2e86912a1 [2018-12-09 00:18:36,935 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/875546571/9248b5532b94403eae9e838582707e57 [2018-12-09 00:18:36,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:18:36,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:18:36,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:18:36,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:18:36,940 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:18:36,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:36" (1/1) ... [2018-12-09 00:18:36,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7962e2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:36, skipping insertion in model container [2018-12-09 00:18:36,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:36" (1/1) ... [2018-12-09 00:18:36,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:18:36,957 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:18:37,057 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:18:37,060 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:18:37,082 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:18:37,125 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:18:37,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37 WrapperNode [2018-12-09 00:18:37,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:18:37,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:18:37,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:18:37,126 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:18:37,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:18:37,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:18:37,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:18:37,148 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:18:37,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... [2018-12-09 00:18:37,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:18:37,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:18:37,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:18:37,169 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:18:37,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 [2018-12-09 00:18:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-12-09 00:18:37,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-12-09 00:18:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 00:18:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 00:18:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:18:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:18:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 00:18:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 00:18:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:18:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:18:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 00:18:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:18:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:18:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:18:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 00:18:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:18:37,404 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:18:37,404 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 00:18:37,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:37 BoogieIcfgContainer [2018-12-09 00:18:37,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:18:37,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:18:37,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:18:37,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:18:37,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:18:36" (1/3) ... [2018-12-09 00:18:37,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c992c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:37, skipping insertion in model container [2018-12-09 00:18:37,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:37" (2/3) ... [2018-12-09 00:18:37,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c992c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:37, skipping insertion in model container [2018-12-09 00:18:37,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:37" (3/3) ... [2018-12-09 00:18:37,411 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931_true-unreach-call.c [2018-12-09 00:18:37,419 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:18:37,424 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:18:37,433 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:18:37,451 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:18:37,451 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:18:37,451 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:18:37,451 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:18:37,451 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:18:37,451 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:18:37,452 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:18:37,452 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:18:37,463 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-09 00:18:37,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 00:18:37,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:18:37,468 INFO L402 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, 1, 1] [2018-12-09 00:18:37,470 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:18:37,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:18:37,473 INFO L82 PathProgramCache]: Analyzing trace with hash 678028914, now seen corresponding path program 1 times [2018-12-09 00:18:37,475 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:18:37,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:18:37,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:18:37,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:18:37,509 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:18:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:18:37,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:18:37,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:18:37,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:18:37,575 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:18:37,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:18:37,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:18:37,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:18:37,587 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-09 00:18:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:18:37,600 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2018-12-09 00:18:37,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:18:37,601 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-09 00:18:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:18:37,607 INFO L225 Difference]: With dead ends: 82 [2018-12-09 00:18:37,607 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 00:18:37,609 INFO L631 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 [2018-12-09 00:18:37,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 00:18:37,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 00:18:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 00:18:37,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-09 00:18:37,631 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 24 [2018-12-09 00:18:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:18:37,631 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-09 00:18:37,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:18:37,632 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-09 00:18:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 00:18:37,632 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:18:37,632 INFO L402 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, 1, 1, 1, 1] [2018-12-09 00:18:37,632 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:18:37,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:18:37,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1563027624, now seen corresponding path program 1 times [2018-12-09 00:18:37,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:18:37,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:18:37,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:18:37,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:18:37,633 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:18:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:18:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:18:37,717 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 00:18:37,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:18:37 BoogieIcfgContainer [2018-12-09 00:18:37,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:18:37,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:18:37,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:18:37,741 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:18:37,741 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:37" (3/4) ... [2018-12-09 00:18:37,743 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 00:18:37,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:18:37,744 INFO L168 Benchmark]: Toolchain (without parser) took 806.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -85.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:18:37,744 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:18:37,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:18:37,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.72 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. [2018-12-09 00:18:37,745 INFO L168 Benchmark]: Boogie Preprocessor took 21.66 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. [2018-12-09 00:18:37,745 INFO L168 Benchmark]: RCFGBuilder took 235.58 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:18:37,746 INFO L168 Benchmark]: TraceAbstraction took 334.70 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: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:18:37,746 INFO L168 Benchmark]: Witness Printer took 2.73 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. [2018-12-09 00:18:37,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.72 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 21.66 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 235.58 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 334.70 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: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.73 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: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=10737418260, \old(Lg2_log)=10737418264, \old(Lg3_log)=10737418241, \old(Lg4_log)=10737418245, \old(Lg5_log)=10737418247, \old(Lg6_log)=10737418256, \old(Lg7_log)=10737418253, \old(ln2_hi_log)=10737418243, \old(ln2_lo_log)=10737418248, \old(two54_log)=10737418257, \old(zero)=10737418261, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L132] double x = 1.0 / 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L133] CALL, EXPR __ieee754_log(x) VAL [\old(x)=10737418263, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=10737418263, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=10737418263, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [\old(x)=10737418263, hx=1048575, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483670, two54_log=18014398509481984, x=10737418263, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=10737418263, hx=1048575, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483670, two54_log=18014398509481984, x=10737418263, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [\old(x)=10737418263, hx=1048575, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=2147483670, two54_log=18014398509481984, x=10737418263, zero=0] [L133] RET, EXPR __ieee754_log(x) VAL [__ieee754_log(x)=10737418246, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=10737418263, zero=0] [L133] double res = __ieee754_log(x); [L136] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418246, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L19] __int32_t hx, lx; VAL [\old(x)=10737418246, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=10737418246, zero=0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418246, \result=0, hx=2146435072, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=-2147483648, two54_log=18014398509481984, x=10737418246, zero=0] [L136] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=10737418246, two54_log=18014398509481984, x=10737418263, zero=0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=10737418246, two54_log=18014398509481984, x=10737418263, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 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=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-09 00:18:39,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:18:39,123 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:18:39,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:18:39,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:18:39,132 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:18:39,133 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:18:39,134 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:18:39,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:18:39,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:18:39,137 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:18:39,137 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:18:39,137 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:18:39,138 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:18:39,139 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:18:39,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:18:39,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:18:39,141 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:18:39,142 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:18:39,144 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:18:39,144 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:18:39,145 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:18:39,146 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:18:39,146 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:18:39,146 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:18:39,146 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:18:39,147 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:18:39,148 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:18:39,148 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:18:39,149 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:18:39,149 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:18:39,149 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:18:39,150 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:18:39,150 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:18:39,150 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:18:39,151 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:18:39,151 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 00:18:39,161 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:18:39,161 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:18:39,162 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:18:39,162 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:18:39,162 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:18:39,162 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:18:39,162 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:18:39,163 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:18:39,163 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:18:39,163 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:18:39,164 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:18:39,164 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:18:39,164 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:18:39,164 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:18:39,164 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:18:39,164 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:18:39,164 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:18:39,165 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 00:18:39,165 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 00:18:39,165 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:18:39,165 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:18:39,165 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:18:39,165 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:18:39,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:18:39,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:18:39,166 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:18:39,166 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:18:39,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:18:39,166 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:18:39,166 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:18:39,167 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:18:39,167 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 00:18:39,167 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:18:39,167 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 00:18:39,167 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 00:18:39,167 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 -> 0e53a60f39a91e1e1920d8af49e587dad4da2ef8 [2018-12-09 00:18:39,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:18:39,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:18:39,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:18:39,206 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:18:39,206 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:18:39,207 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-12-09 00:18:39,247 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/c31ad3214/0ee0adb82e8f4b03bb53e92a5e3086cd/FLAGec95201e2 [2018-12-09 00:18:39,592 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:18:39,592 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-12-09 00:18:39,596 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/c31ad3214/0ee0adb82e8f4b03bb53e92a5e3086cd/FLAGec95201e2 [2018-12-09 00:18:39,981 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/data/c31ad3214/0ee0adb82e8f4b03bb53e92a5e3086cd [2018-12-09 00:18:39,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:18:39,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:18:39,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:18:39,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:18:39,991 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:18:39,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:39" (1/1) ... [2018-12-09 00:18:39,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bff49fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39, skipping insertion in model container [2018-12-09 00:18:39,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:39" (1/1) ... [2018-12-09 00:18:39,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:18:40,010 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:18:40,114 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:18:40,118 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:18:40,144 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:18:40,161 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:18:40,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40 WrapperNode [2018-12-09 00:18:40,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:18:40,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:18:40,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:18:40,162 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:18:40,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:18:40,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:18:40,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:18:40,179 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:18:40,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... [2018-12-09 00:18:40,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:18:40,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:18:40,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:18:40,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:18:40,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 [2018-12-09 00:18:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-12-09 00:18:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-09 00:18:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:18:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:18:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:18:40,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:18:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 00:18:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 00:18:44,554 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 00:19:02,822 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 00:19:02,890 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 00:19:03,101 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 00:19:03,116 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:19:03,117 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 00:19:03,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:19:03 BoogieIcfgContainer [2018-12-09 00:19:03,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:19:03,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:19:03,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:19:03,120 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:19:03,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:18:39" (1/3) ... [2018-12-09 00:19:03,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227e7779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:19:03, skipping insertion in model container [2018-12-09 00:19:03,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:40" (2/3) ... [2018-12-09 00:19:03,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227e7779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:19:03, skipping insertion in model container [2018-12-09 00:19:03,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:19:03" (3/3) ... [2018-12-09 00:19:03,122 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931_true-unreach-call.c [2018-12-09 00:19:03,127 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:19:03,131 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:19:03,140 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:19:03,156 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:19:03,156 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:19:03,157 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:19:03,157 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:19:03,157 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:19:03,157 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:19:03,157 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:19:03,157 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:19:03,157 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:19:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-12-09 00:19:03,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 00:19:03,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:19:03,171 INFO L402 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, 1] [2018-12-09 00:19:03,172 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:19:03,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:19:03,176 INFO L82 PathProgramCache]: Analyzing trace with hash 594479389, now seen corresponding path program 1 times [2018-12-09 00:19:03,179 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 00:19:03,179 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 [2018-12-09 00:19:03,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:19:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:19:03,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:19:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:19:03,888 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 00:19:03,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:19:03,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:19:03,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:19:03,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:19:03,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:19:03,919 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-12-09 00:19:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:19:03,933 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2018-12-09 00:19:03,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:19:03,934 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-09 00:19:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:19:03,940 INFO L225 Difference]: With dead ends: 80 [2018-12-09 00:19:03,940 INFO L226 Difference]: Without dead ends: 40 [2018-12-09 00:19:03,942 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:19:03,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-09 00:19:03,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-12-09 00:19:03,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-09 00:19:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2018-12-09 00:19:03,964 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 23 [2018-12-09 00:19:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:19:03,965 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2018-12-09 00:19:03,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:19:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2018-12-09 00:19:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 00:19:03,965 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:19:03,966 INFO L402 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, 1, 1, 1] [2018-12-09 00:19:03,966 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:19:03,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:19:03,966 INFO L82 PathProgramCache]: Analyzing trace with hash -463817501, now seen corresponding path program 1 times [2018-12-09 00:19:03,966 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 00:19:03,967 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 [2018-12-09 00:19:03,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:19:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:19:04,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:19:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:19:04,789 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 00:19:04,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:19:04,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 00:19:04,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:19:04,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:19:04,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:19:04,804 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand 6 states. [2018-12-09 00:19:05,032 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-12-09 00:19:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:19:18,815 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2018-12-09 00:19:18,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 00:19:18,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-09 00:19:18,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:19:18,819 INFO L225 Difference]: With dead ends: 68 [2018-12-09 00:19:18,819 INFO L226 Difference]: Without dead ends: 38 [2018-12-09 00:19:18,820 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-09 00:19:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-09 00:19:18,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-12-09 00:19:18,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-09 00:19:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-12-09 00:19:18,824 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 25 [2018-12-09 00:19:18,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:19:18,824 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-12-09 00:19:18,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:19:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-12-09 00:19:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 00:19:18,825 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:19:18,825 INFO L402 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, 1, 1, 1] [2018-12-09 00:19:18,825 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:19:18,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:19:18,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1154507228, now seen corresponding path program 1 times [2018-12-09 00:19:18,826 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 00:19:18,826 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 [2018-12-09 00:19:18,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:19:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:19:18,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:19:19,543 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-12-09 00:19:19,890 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:19:19,891 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:19:19,892 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:19:19,892 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:19:19,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 98 [2018-12-09 00:19:20,001 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 00:19:20,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 72 [2018-12-09 00:19:20,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-12-09 00:19:20,098 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 00:19:20,124 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:19:20,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-12-09 00:19:20,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-12-09 00:19:20,165 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-09 00:19:20,167 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:19:20,186 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2018-12-09 00:19:20,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2018-12-09 00:19:20,192 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-09 00:19:20,204 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:19:20,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 00:19:20,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 00:19:20,228 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:82, output treesize:28 [2018-12-09 00:19:20,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:19:20,822 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 00:19:20,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:19:20,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 00:19:20,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 00:19:20,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 00:19:20,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 00:19:20,832 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 11 states. [2018-12-09 00:19:22,601 WARN L180 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 00:19:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:19:38,661 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-12-09 00:19:38,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 00:19:38,662 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-12-09 00:19:38,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:19:38,662 INFO L225 Difference]: With dead ends: 43 [2018-12-09 00:19:38,662 INFO L226 Difference]: Without dead ends: 36 [2018-12-09 00:19:38,663 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-09 00:19:38,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-09 00:19:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-09 00:19:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-09 00:19:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-12-09 00:19:38,668 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 25 [2018-12-09 00:19:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:19:38,668 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-12-09 00:19:38,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 00:19:38,668 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-12-09 00:19:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 00:19:38,668 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:19:38,668 INFO L402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:19:38,669 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:19:38,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:19:38,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1633720732, now seen corresponding path program 1 times [2018-12-09 00:19:38,669 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 00:19:38,669 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/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 [2018-12-09 00:19:38,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:19:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:19:41,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:19:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:19:42,086 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 00:19:42,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:19:42,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 00:19:42,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:19:42,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:19:42,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:19:42,134 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 6 states. [2018-12-09 00:19:46,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:19:46,247 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-12-09 00:19:46,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 00:19:46,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-09 00:19:46,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:19:46,248 INFO L225 Difference]: With dead ends: 36 [2018-12-09 00:19:46,249 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:19:46,249 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:19:46,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:19:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:19:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:19:46,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:19:46,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-12-09 00:19:46,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:19:46,250 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:19:46,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:19:46,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:19:46,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:19:46,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:19:46,370 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:19:46,370 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:19:46,370 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:19:46,370 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 92) no Hoare annotation was computed. [2018-12-09 00:19:46,370 INFO L448 ceAbstractionStarter]: For program point __ieee754_logEXIT(lines 45 124) no Hoare annotation was computed. [2018-12-09 00:19:46,370 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2018-12-09 00:19:46,370 INFO L444 ceAbstractionStarter]: At program point L65-2(lines 65 69) the Hoare annotation is: (and (exists ((v_prenex_11 (_ BitVec 64))) (and (= __ieee754_log_~hx~1 ((_ extract 63 32) v_prenex_11)) (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_11) ((_ extract 62 52) v_prenex_11) ((_ extract 51 0) v_prenex_11))))) (exists ((v_prenex_11 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_11) ((_ extract 62 52) v_prenex_11) ((_ extract 51 0) v_prenex_11))) (bvslt ((_ extract 63 32) v_prenex_11) (_ bv1048576 32))))) [2018-12-09 00:19:46,370 INFO L448 ceAbstractionStarter]: For program point L94(lines 94 99) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 62) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 122) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 91) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 123) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 70) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L58-1(lines 45 124) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 55) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L444 ceAbstractionStarter]: At program point L50-2(lines 50 55) the Hoare annotation is: (= __ieee754_log_~x |__ieee754_log_#in~x|) [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point L50-3(lines 50 55) no Hoare annotation was computed. [2018-12-09 00:19:46,371 INFO L451 ceAbstractionStarter]: At program point __ieee754_logENTRY(lines 45 124) the Hoare annotation is: true [2018-12-09 00:19:46,371 INFO L448 ceAbstractionStarter]: For program point __ieee754_logFINAL(lines 45 124) no Hoare annotation was computed. [2018-12-09 00:19:46,372 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 60) no Hoare annotation was computed. [2018-12-09 00:19:46,372 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 100) no Hoare annotation was computed. [2018-12-09 00:19:46,372 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 117) no Hoare annotation was computed. [2018-12-09 00:19:46,372 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 81) no Hoare annotation was computed. [2018-12-09 00:19:46,372 INFO L444 ceAbstractionStarter]: At program point L76-2(lines 76 81) the Hoare annotation is: (or (and (exists ((v_prenex_13 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_13) ((_ extract 62 52) v_prenex_13) ((_ extract 51 0) v_prenex_13))) (not (bvsge ((_ extract 63 32) v_prenex_13) (_ bv2146435072 32))))) (= __ieee754_log_~x |__ieee754_log_#in~x|)) (exists ((v_prenex_11 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_11) ((_ extract 62 52) v_prenex_11) ((_ extract 51 0) v_prenex_11))) (bvslt ((_ extract 63 32) v_prenex_11) (_ bv1048576 32))))) [2018-12-09 00:19:46,372 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 81) no Hoare annotation was computed. [2018-12-09 00:19:46,372 INFO L448 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-12-09 00:19:46,372 INFO L444 ceAbstractionStarter]: At program point L20-2(lines 20 25) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-12-09 00:19:46,372 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 20 25) no Hoare annotation was computed. [2018-12-09 00:19:46,373 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 18 30) no Hoare annotation was computed. [2018-12-09 00:19:46,373 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 18 30) no Hoare annotation was computed. [2018-12-09 00:19:46,373 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 18 30) the Hoare annotation is: true [2018-12-09 00:19:46,373 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:19:46,373 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 00:19:46,373 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:19:46,373 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:19:46,373 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 126 142) the Hoare annotation is: true [2018-12-09 00:19:46,373 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 126 142) no Hoare annotation was computed. [2018-12-09 00:19:46,373 INFO L448 ceAbstractionStarter]: For program point L137(line 137) no Hoare annotation was computed. [2018-12-09 00:19:46,373 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 126 142) no Hoare annotation was computed. [2018-12-09 00:19:46,374 INFO L444 ceAbstractionStarter]: At program point L136(line 136) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-12-09 00:19:46,374 INFO L448 ceAbstractionStarter]: For program point L136-1(lines 136 139) no Hoare annotation was computed. [2018-12-09 00:19:46,374 INFO L444 ceAbstractionStarter]: At program point L133(line 133) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2018-12-09 00:19:46,374 INFO L448 ceAbstractionStarter]: For program point L133-1(line 133) no Hoare annotation was computed. [2018-12-09 00:19:46,374 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2018-12-09 00:19:46,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,378 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,379 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,384 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,384 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,384 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,384 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,384 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,385 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,386 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,386 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,386 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,386 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,386 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,389 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:19:46 BoogieIcfgContainer [2018-12-09 00:19:46,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:19:46,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:19:46,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:19:46,391 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:19:46,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:19:03" (3/4) ... [2018-12-09 00:19:46,393 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:19:46,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:19:46,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log [2018-12-09 00:19:46,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-12-09 00:19:46,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:19:46,401 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2018-12-09 00:19:46,401 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-09 00:19:46,402 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 00:19:46,402 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 00:19:46,417 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 00:19:46,417 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-09 00:19:46,418 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_prenex_11 : bv64 :: hx == v_prenex_11[63:32] && \old(x) == ~fp~LONGDOUBLE(v_prenex_11[63:63], v_prenex_11[62:52], v_prenex_11[51:0])) && (\exists v_prenex_11 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_11[63:63], v_prenex_11[62:52], v_prenex_11[51:0]) && ~bvslt32(v_prenex_11[63:32], 1048576bv32)) [2018-12-09 00:19:46,418 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_prenex_13 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_13[63:63], v_prenex_13[62:52], v_prenex_13[51:0]) && !~bvsge32(v_prenex_13[63:32], 2146435072bv32)) && x == \old(x)) || (\exists v_prenex_11 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_11[63:63], v_prenex_11[62:52], v_prenex_11[51:0]) && ~bvslt32(v_prenex_11[63:32], 1048576bv32)) [2018-12-09 00:19:46,434 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d5478af4-1ca5-4db2-9e16-11b6dc204d2a/bin-2019/utaipan/witness.graphml [2018-12-09 00:19:46,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:19:46,434 INFO L168 Benchmark]: Toolchain (without parser) took 66449.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.4 MB in the beginning and 871.5 MB in the end (delta: 71.9 MB). Peak memory consumption was 204.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:19:46,435 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:19:46,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.10 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:19:46,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.59 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:19:46,436 INFO L168 Benchmark]: Boogie Preprocessor took 55.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:19:46,436 INFO L168 Benchmark]: RCFGBuilder took 22882.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:19:46,436 INFO L168 Benchmark]: TraceAbstraction took 43272.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.1 MB in the end (delta: 205.6 MB). Peak memory consumption was 205.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:19:46,436 INFO L168 Benchmark]: Witness Printer took 43.25 ms. Allocated memory is still 1.2 GB. Free memory was 878.1 MB in the beginning and 871.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:19:46,438 INFO L336 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.10 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.59 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -194.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 22882.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43272.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 878.1 MB in the end (delta: 205.6 MB). Peak memory consumption was 205.6 MB. Max. memory is 11.5 GB. * Witness Printer took 43.25 ms. Allocated memory is still 1.2 GB. Free memory was 878.1 MB in the beginning and 871.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 137]: 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: 76]: Loop Invariant [2018-12-09 00:19:46,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,442 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,443 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,443 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-12-09 00:19:46,443 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,443 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,443 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,443 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] Derived loop invariant: ((\exists v_prenex_13 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_13[63:63], v_prenex_13[62:52], v_prenex_13[51:0]) && !~bvsge32(v_prenex_13[63:32], 2146435072bv32)) && x == \old(x)) || (\exists v_prenex_11 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_11[63:63], v_prenex_11[62:52], v_prenex_11[51:0]) && ~bvslt32(v_prenex_11[63:32], 1048576bv32)) - InvariantResult [Line: 65]: Loop Invariant [2018-12-09 00:19:46,444 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,444 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,444 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,444 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,444 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,444 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,444 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,445 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,445 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,445 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,445 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,445 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-12-09 00:19:46,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] Derived loop invariant: (\exists v_prenex_11 : bv64 :: hx == v_prenex_11[63:32] && \old(x) == ~fp~LONGDOUBLE(v_prenex_11[63:63], v_prenex_11[62:52], v_prenex_11[51:0])) && (\exists v_prenex_11 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_11[63:63], v_prenex_11[62:52], v_prenex_11[51:0]) && ~bvslt32(v_prenex_11[63:32], 1048576bv32)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 44 locations, 1 error locations. SAFE Result, 43.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 35.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 69 SDslu, 545 SDs, 0 SdLazy, 157 SolverSat, 8 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 30.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.5s 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 24 NumberOfFragments, 112 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 100 ConstructedInterpolants, 23 QuantifiedInterpolants, 17782 SizeOfPredicates, 11 NumberOfNonLiveVariables, 461 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...