./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 0.1.23-5842f4b [2018-11-18 12:29:48,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:29:48,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:29:48,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:29:48,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:29:48,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:29:48,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:29:48,565 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:29:48,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:29:48,567 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:29:48,568 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:29:48,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:29:48,569 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:29:48,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:29:48,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:29:48,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:29:48,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:29:48,574 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:29:48,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:29:48,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:29:48,578 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:29:48,579 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:29:48,581 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:29:48,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:29:48,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:29:48,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:29:48,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:29:48,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:29:48,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:29:48,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:29:48,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:29:48,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:29:48,587 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:29:48,587 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:29:48,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:29:48,590 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:29:48,590 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:29:48,602 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:29:48,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:29:48,603 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:29:48,603 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:29:48,603 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:29:48,603 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:29:48,603 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:29:48,603 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:29:48,603 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:29:48,604 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:29:48,605 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:29:48,605 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:29:48,605 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:29:48,605 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:29:48,606 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:29:48,606 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:29:48,606 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:29:48,606 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:29:48,606 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:29:48,606 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:29:48,606 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:29:48,607 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:29:48,607 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:29:48,607 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:29:48,607 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:29:48,607 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:29:48,607 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:29:48,607 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:29:48,609 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:29:48,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:29:48,610 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:29:48,610 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:29:48,610 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:29:48,610 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:29:48,610 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:29:48,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:29:48,611 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:29:48,611 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_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:29:48,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:29:48,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:29:48,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:29:48,675 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:29:48,675 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:29:48,676 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-11-18 12:29:48,754 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/fe26b4d9f/99f4d6e2e013476d8665b3f274d8e995/FLAG47246a498 [2018-11-18 12:29:49,163 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:29:49,163 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-11-18 12:29:49,169 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/fe26b4d9f/99f4d6e2e013476d8665b3f274d8e995/FLAG47246a498 [2018-11-18 12:29:49,181 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/fe26b4d9f/99f4d6e2e013476d8665b3f274d8e995 [2018-11-18 12:29:49,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:29:49,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:29:49,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:29:49,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:29:49,190 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:29:49,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c938308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49, skipping insertion in model container [2018-11-18 12:29:49,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:29:49,223 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:29:49,405 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:29:49,409 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:29:49,447 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:29:49,464 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:29:49,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49 WrapperNode [2018-11-18 12:29:49,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:29:49,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:29:49,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:29:49,465 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:29:49,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:29:49,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:29:49,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:29:49,490 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:29:49,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... [2018-11-18 12:29:49,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:29:49,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:29:49,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:29:49,578 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:29:49,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:29:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 12:29:49,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 12:29:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:29:49,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:29:49,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:29:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:29:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:29:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:29:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:29:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:29:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:29:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:29:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:29:49,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:29:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:29:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:29:49,967 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:29:49,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:29:49 BoogieIcfgContainer [2018-11-18 12:29:49,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:29:49,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:29:49,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:29:49,970 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:29:49,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:29:49" (1/3) ... [2018-11-18 12:29:49,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e8a4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:29:49, skipping insertion in model container [2018-11-18 12:29:49,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:49" (2/3) ... [2018-11-18 12:29:49,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e8a4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:29:49, skipping insertion in model container [2018-11-18 12:29:49,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:29:49" (3/3) ... [2018-11-18 12:29:49,973 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931_true-unreach-call.c [2018-11-18 12:29:49,980 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:29:49,987 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:29:49,999 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:29:50,026 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:29:50,027 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:29:50,027 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:29:50,027 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:29:50,027 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:29:50,027 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:29:50,027 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:29:50,027 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:29:50,042 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-18 12:29:50,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:29:50,047 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:29:50,048 INFO L375 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] [2018-11-18 12:29:50,050 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:29:50,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:29:50,056 INFO L82 PathProgramCache]: Analyzing trace with hash -582759952, now seen corresponding path program 1 times [2018-11-18 12:29:50,059 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:29:50,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:29:50,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:29:50,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:29:50,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:29:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:29:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:29:50,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:29:50,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:29:50,208 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:29:50,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:29:50,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:29:50,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:29:50,224 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-18 12:29:50,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:29:50,243 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2018-11-18 12:29:50,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:29:50,245 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 12:29:50,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:29:50,255 INFO L225 Difference]: With dead ends: 82 [2018-11-18 12:29:50,255 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:29:50,258 INFO L604 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 [2018-11-18 12:29:50,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:29:50,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:29:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:29:50,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-18 12:29:50,297 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 24 [2018-11-18 12:29:50,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:29:50,297 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-18 12:29:50,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:29:50,298 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-18 12:29:50,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:29:50,298 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:29:50,299 INFO L375 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] [2018-11-18 12:29:50,299 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:29:50,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:29:50,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1054614853, now seen corresponding path program 1 times [2018-11-18 12:29:50,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:29:50,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:29:50,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:29:50,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:29:50,301 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:29:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:29:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:29:50,430 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:29:50,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:29:50 BoogieIcfgContainer [2018-11-18 12:29:50,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:29:50,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:29:50,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:29:50,470 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:29:50,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:29:49" (3/4) ... [2018-11-18 12:29:50,474 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:29:50,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:29:50,475 INFO L168 Benchmark]: Toolchain (without parser) took 1290.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:50,476 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:29:50,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.50 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 944.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:50,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.57 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:29:50,477 INFO L168 Benchmark]: Boogie Preprocessor took 88.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -219.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:50,478 INFO L168 Benchmark]: RCFGBuilder took 389.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:50,478 INFO L168 Benchmark]: TraceAbstraction took 501.29 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: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:50,479 INFO L168 Benchmark]: Witness Printer took 4.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:29:50,482 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.50 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 944.6 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 24.57 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -219.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 389.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 501.29 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: 37.1 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. 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)=10737418257, \old(Lg2_log)=10737418260, \old(Lg3_log)=10737418243, \old(Lg4_log)=10737418247, \old(Lg5_log)=10737418249, \old(Lg6_log)=10737418254, \old(Lg7_log)=10737418253, \old(ln2_hi_log)=10737418245, \old(ln2_lo_log)=10737418250, \old(two54_log)=10737418255, \old(zero)=10737418258, 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)=10737418259, 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)=10737418259, 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=10737418259, zero=0] [L51] FCALL ieee_double_shape_type ew_u; [L52] FCALL ew_u.value = (x) [L53] EXPR, FCALL ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR, FCALL ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L55] COND FALSE !(0) VAL [\old(x)=10737418259, hx=-2147483646, 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=10737418259, zero=0] [L57] k = 0 VAL [\old(x)=10737418259, hx=-2147483646, 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=2147483648, two54_log=18014398509481984, x=10737418259, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=10737418259, hx=-2147483646, 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=2147483648, two54_log=18014398509481984, x=10737418259, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] RET return -two54_log / zero; VAL [\old(x)=10737418259, hx=-2147483646, 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=2147483648, two54_log=18014398509481984, x=10737418259, zero=0] [L133] EXPR __ieee754_log(x) VAL [__ieee754_log(x)=10737418248, 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=10737418259, zero=0] [L133] double res = __ieee754_log(x); [L136] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418248, 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)=10737418248, 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=10737418248, zero=0] [L21] FCALL ieee_double_shape_type ew_u; [L22] FCALL ew_u.value = (x) [L23] EXPR, FCALL ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR, FCALL ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L25] COND FALSE !(0) VAL [\old(x)=10737418248, hx=-2147483646, 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=10737418248, zero=0] [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418248, \result=0, hx=2146435073, 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=10737418248, zero=0] [L136] 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=10737418248, two54_log=18014398509481984, x=10737418259, 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=10737418248, two54_log=18014398509481984, x=10737418259, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.4s 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 0.1.23-5842f4b [2018-11-18 12:29:52,545 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:29:52,546 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:29:52,554 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:29:52,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:29:52,555 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:29:52,557 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:29:52,558 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:29:52,559 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:29:52,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:29:52,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:29:52,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:29:52,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:29:52,562 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:29:52,564 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:29:52,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:29:52,565 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:29:52,566 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:29:52,567 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:29:52,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:29:52,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:29:52,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:29:52,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:29:52,576 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:29:52,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:29:52,577 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:29:52,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:29:52,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:29:52,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:29:52,580 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:29:52,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:29:52,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:29:52,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:29:52,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:29:52,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:29:52,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:29:52,583 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:29:52,593 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:29:52,594 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:29:52,594 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:29:52,594 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:29:52,595 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:29:52,595 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:29:52,595 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:29:52,595 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:29:52,595 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:29:52,595 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:29:52,597 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:29:52,597 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:29:52,597 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:29:52,598 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:29:52,599 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:29:52,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:29:52,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:29:52,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:29:52,599 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:29:52,599 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:29:52,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:29:52,601 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:29:52,602 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:29:52,602 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:29:52,602 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:29:52,602 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:29:52,602 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:29:52,602 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:29:52,602 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_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:29:52,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:29:52,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:29:52,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:29:52,652 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:29:52,653 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:29:52,653 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-11-18 12:29:52,707 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/293fb6bda/3d0ee2ab0ed84a9bac9f0747899fd68b/FLAGc634455b5 [2018-11-18 12:29:53,084 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:29:53,085 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/sv-benchmarks/c/float-newlib/double_req_bl_0931_true-unreach-call.c [2018-11-18 12:29:53,091 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/293fb6bda/3d0ee2ab0ed84a9bac9f0747899fd68b/FLAGc634455b5 [2018-11-18 12:29:53,103 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/data/293fb6bda/3d0ee2ab0ed84a9bac9f0747899fd68b [2018-11-18 12:29:53,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:29:53,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:29:53,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:29:53,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:29:53,114 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:29:53,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9f8bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53, skipping insertion in model container [2018-11-18 12:29:53,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:29:53,159 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:29:53,384 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:29:53,391 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:29:53,427 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:29:53,453 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:29:53,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53 WrapperNode [2018-11-18 12:29:53,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:29:53,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:29:53,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:29:53,454 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:29:53,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:29:53,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:29:53,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:29:53,481 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:29:53,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... [2018-11-18 12:29:53,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:29:53,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:29:53,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:29:53,570 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:29:53,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:29:53,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 12:29:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 12:29:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 12:29:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 12:29:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:29:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:29:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:29:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:29:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:29:53,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:29:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:29:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:29:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:29:53,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:29:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:29:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:29:53,830 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:30:16,104 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:30:16,181 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:30:16,439 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:30:16,459 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:30:16,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:16 BoogieIcfgContainer [2018-11-18 12:30:16,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:30:16,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:30:16,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:30:16,463 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:30:16,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:29:53" (1/3) ... [2018-11-18 12:30:16,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604ddf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:30:16, skipping insertion in model container [2018-11-18 12:30:16,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:29:53" (2/3) ... [2018-11-18 12:30:16,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604ddf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:30:16, skipping insertion in model container [2018-11-18 12:30:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:16" (3/3) ... [2018-11-18 12:30:16,467 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931_true-unreach-call.c [2018-11-18 12:30:16,473 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:30:16,480 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:30:16,490 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:30:16,516 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:30:16,517 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:30:16,520 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:30:16,520 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:30:16,520 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:30:16,520 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:30:16,520 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:30:16,521 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:30:16,521 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:30:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-18 12:30:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:30:16,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:30:16,540 INFO L375 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] [2018-11-18 12:30:16,541 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:30:16,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:30:16,545 INFO L82 PathProgramCache]: Analyzing trace with hash -831664541, now seen corresponding path program 1 times [2018-11-18 12:30:16,550 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:30:16,550 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:30:16,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:30:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:30:17,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:30:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:30:17,465 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:30:17,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:30:17,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:30:17,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:30:17,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:30:17,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:30:17,505 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-11-18 12:30:17,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:30:17,526 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2018-11-18 12:30:17,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:30:17,527 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 12:30:17,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:30:17,535 INFO L225 Difference]: With dead ends: 80 [2018-11-18 12:30:17,535 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 12:30:17,539 INFO L604 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 [2018-11-18 12:30:17,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 12:30:17,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 12:30:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 12:30:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2018-11-18 12:30:17,574 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 23 [2018-11-18 12:30:17,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:30:17,574 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2018-11-18 12:30:17,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:30:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2018-11-18 12:30:17,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:30:17,575 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:30:17,575 INFO L375 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] [2018-11-18 12:30:17,576 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:30:17,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:30:17,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1450049238, now seen corresponding path program 1 times [2018-11-18 12:30:17,576 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:30:17,577 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:30:17,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:30:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:30:18,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:30:18,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:30:18,543 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:30:18,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:30:18,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:30:18,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:30:18,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:30:18,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:30:18,574 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand 6 states. [2018-11-18 12:30:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:30:31,833 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2018-11-18 12:30:32,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:30:32,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 12:30:32,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:30:32,533 INFO L225 Difference]: With dead ends: 68 [2018-11-18 12:30:32,533 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 12:30:32,534 INFO L604 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 [2018-11-18 12:30:32,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 12:30:32,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-11-18 12:30:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 12:30:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-18 12:30:32,539 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 25 [2018-11-18 12:30:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:30:32,540 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-18 12:30:32,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:30:32,540 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-18 12:30:32,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:30:32,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:30:32,541 INFO L375 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] [2018-11-18 12:30:32,541 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:30:32,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:30:32,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1355266699, now seen corresponding path program 1 times [2018-11-18 12:30:32,542 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:30:32,542 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:30:32,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:30:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:30:32,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:30:33,420 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-18 12:30:33,936 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:30:33,937 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:30:33,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:30:34,017 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:30:34,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 24 treesize of output 24 [2018-11-18 12:30:34,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:30:34,129 INFO L477 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 24 treesize of output 18 [2018-11-18 12:30:34,157 INFO L477 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 18 treesize of output 4 [2018-11-18 12:30:34,158 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:30:34,172 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:30:34,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:30:34,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:30:34,245 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 12:30:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:30:35,148 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:30:35,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:30:35,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 12:30:35,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:30:35,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:30:35,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:30:35,167 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 11 states. [2018-11-18 12:30:36,988 WARN L180 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 12:30:53,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:30:53,526 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-11-18 12:30:53,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:30:53,527 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-18 12:30:53,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:30:53,529 INFO L225 Difference]: With dead ends: 43 [2018-11-18 12:30:53,529 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 12:30:53,529 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 12:30:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 12:30:53,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-18 12:30:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 12:30:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-18 12:30:53,536 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 25 [2018-11-18 12:30:53,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:30:53,536 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-18 12:30:53,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:30:53,536 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-18 12:30:53,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 12:30:53,537 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:30:53,537 INFO L375 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] [2018-11-18 12:30:53,538 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:30:53,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:30:53,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1818296246, now seen corresponding path program 1 times [2018-11-18 12:30:53,538 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:30:53,538 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/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 [2018-11-18 12:30:53,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:30:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:30:53,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:30:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:30:53,839 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:30:53,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:30:53,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:30:53,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:30:53,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:30:53,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:30:53,853 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 6 states. [2018-11-18 12:30:57,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:30:57,540 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-11-18 12:30:58,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:30:58,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-18 12:30:58,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:30:58,251 INFO L225 Difference]: With dead ends: 36 [2018-11-18 12:30:58,251 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:30:58,252 INFO L604 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 [2018-11-18 12:30:58,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:30:58,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:30:58,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:30:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:30:58,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 12:30:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:30:58,253 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:30:58,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:30:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:30:58,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:30:58,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:30:58,580 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:30:58,581 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:30:58,581 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:30:58,581 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 92) no Hoare annotation was computed. [2018-11-18 12:30:58,581 INFO L425 ceAbstractionStarter]: For program point __ieee754_logEXIT(lines 45 124) no Hoare annotation was computed. [2018-11-18 12:30:58,581 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2018-11-18 12:30:58,582 INFO L421 ceAbstractionStarter]: At program point L65-3(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))))) [2018-11-18 12:30:58,582 INFO L425 ceAbstractionStarter]: For program point L94(lines 94 99) no Hoare annotation was computed. [2018-11-18 12:30:58,582 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 62) no Hoare annotation was computed. [2018-11-18 12:30:58,582 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 122) no Hoare annotation was computed. [2018-11-18 12:30:58,582 INFO L425 ceAbstractionStarter]: For program point L86(lines 86 91) no Hoare annotation was computed. [2018-11-18 12:30:58,582 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 123) no Hoare annotation was computed. [2018-11-18 12:30:58,582 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 70) no Hoare annotation was computed. [2018-11-18 12:30:58,583 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 45 124) no Hoare annotation was computed. [2018-11-18 12:30:58,583 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 55) no Hoare annotation was computed. [2018-11-18 12:30:58,583 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 55) the Hoare annotation is: (= __ieee754_log_~x |__ieee754_log_#in~x|) [2018-11-18 12:30:58,583 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 50 55) no Hoare annotation was computed. [2018-11-18 12:30:58,583 INFO L428 ceAbstractionStarter]: At program point __ieee754_logENTRY(lines 45 124) the Hoare annotation is: true [2018-11-18 12:30:58,583 INFO L425 ceAbstractionStarter]: For program point __ieee754_logFINAL(lines 45 124) no Hoare annotation was computed. [2018-11-18 12:30:58,583 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 60) no Hoare annotation was computed. [2018-11-18 12:30:58,583 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 100) no Hoare annotation was computed. [2018-11-18 12:30:58,584 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 117) no Hoare annotation was computed. [2018-11-18 12:30:58,584 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 81) no Hoare annotation was computed. [2018-11-18 12:30:58,584 INFO L421 ceAbstractionStarter]: At program point L76-3(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))))) [2018-11-18 12:30:58,584 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 81) no Hoare annotation was computed. [2018-11-18 12:30:58,584 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-11-18 12:30:58,584 INFO L421 ceAbstractionStarter]: At program point L20-3(lines 20 25) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-18 12:30:58,585 INFO L425 ceAbstractionStarter]: For program point L20-4(lines 20 25) no Hoare annotation was computed. [2018-11-18 12:30:58,585 INFO L425 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 18 30) no Hoare annotation was computed. [2018-11-18 12:30:58,585 INFO L425 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 18 30) no Hoare annotation was computed. [2018-11-18 12:30:58,585 INFO L428 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 18 30) the Hoare annotation is: true [2018-11-18 12:30:58,585 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:30:58,585 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:30:58,585 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:30:58,585 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:30:58,586 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 126 142) the Hoare annotation is: true [2018-11-18 12:30:58,586 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 126 142) no Hoare annotation was computed. [2018-11-18 12:30:58,586 INFO L425 ceAbstractionStarter]: For program point L137(line 137) no Hoare annotation was computed. [2018-11-18 12:30:58,586 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 126 142) no Hoare annotation was computed. [2018-11-18 12:30:58,586 INFO L421 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)))) [2018-11-18 12:30:58,586 INFO L425 ceAbstractionStarter]: For program point L136-1(lines 136 139) no Hoare annotation was computed. [2018-11-18 12:30:58,586 INFO L421 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))) [2018-11-18 12:30:58,587 INFO L425 ceAbstractionStarter]: For program point L133-1(line 133) no Hoare annotation was computed. [2018-11-18 12:30:58,587 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2018-11-18 12:30:58,592 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,593 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,594 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,594 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,600 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,601 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,601 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,601 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,603 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,603 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,605 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,605 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,605 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,606 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,606 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,606 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,608 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,609 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,609 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,609 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:30:58 BoogieIcfgContainer [2018-11-18 12:30:58,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:30:58,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:30:58,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:30:58,616 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:30:58,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:16" (3/4) ... [2018-11-18 12:30:58,620 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:30:58,627 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:30:58,628 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log [2018-11-18 12:30:58,628 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-18 12:30:58,628 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:30:58,634 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-11-18 12:30:58,634 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-18 12:30:58,634 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:30:58,635 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:30:58,656 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 12:30:58,657 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 12:30:58,657 WARN L220 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)) [2018-11-18 12:30:58,657 WARN L220 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)) [2018-11-18 12:30:58,686 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c2fe8ba0-5854-4b90-b8bc-f5f8b38bfc4d/bin-2019/utaipan/witness.graphml [2018-11-18 12:30:58,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:30:58,687 INFO L168 Benchmark]: Toolchain (without parser) took 65579.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 951.8 MB in the beginning and 876.7 MB in the end (delta: 75.1 MB). Peak memory consumption was 183.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:58,687 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:30:58,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.64 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:58,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.67 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:58,688 INFO L168 Benchmark]: Boogie Preprocessor took 88.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:58,689 INFO L168 Benchmark]: RCFGBuilder took 22889.66 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: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:58,689 INFO L168 Benchmark]: TraceAbstraction took 42150.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 883.6 MB in the end (delta: 175.1 MB). Peak memory consumption was 175.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:58,690 INFO L168 Benchmark]: Witness Printer took 74.64 ms. Allocated memory is still 1.1 GB. Free memory was 883.6 MB in the beginning and 876.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:58,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.64 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 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 26.67 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 22889.66 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: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42150.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 883.6 MB in the end (delta: 175.1 MB). Peak memory consumption was 175.1 MB. Max. memory is 11.5 GB. * Witness Printer took 74.64 ms. Allocated memory is still 1.1 GB. Free memory was 883.6 MB in the beginning and 876.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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_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_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] * 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: 65]: Loop Invariant [2018-11-18 12:30:58,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,701 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,702 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,702 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,702 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,702 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,703 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,704 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,704 WARN L387 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) - InvariantResult [Line: 76]: Loop Invariant [2018-11-18 12:30:58,705 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,705 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,705 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,705 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,705 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,705 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,706 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,706 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,706 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,706 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,707 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,707 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_13,QUANTIFIED] [2018-11-18 12:30:58,707 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,707 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,707 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_11,QUANTIFIED] [2018-11-18 12:30:58,708 WARN L387 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)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 44 locations, 1 error locations. SAFE Result, 42.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 36.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 69 SDslu, 545 SDs, 0 SdLazy, 157 SolverSat, 8 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 30.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.6s 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, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 100 ConstructedInterpolants, 23 QuantifiedInterpolants, 16582 SizeOfPredicates, 11 NumberOfNonLiveVariables, 439 ConjunctsInSsa, 29 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...