./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_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_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 f9996153423fecedcbbebbb98f8557ca25433f0f .............................................................................................................................................................................................................................................................................................................................................. 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_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 f9996153423fecedcbbebbb98f8557ca25433f0f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:44:46,797 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:44:46,798 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:44:46,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:44:46,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:44:46,808 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:44:46,809 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:44:46,810 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:44:46,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:44:46,812 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:44:46,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:44:46,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:44:46,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:44:46,813 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:44:46,814 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:44:46,815 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:44:46,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:44:46,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:44:46,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:44:46,820 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:44:46,821 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:44:46,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:44:46,823 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:44:46,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:44:46,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:44:46,824 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:44:46,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:44:46,826 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:44:46,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:44:46,828 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:44:46,828 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:44:46,828 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:44:46,828 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:44:46,828 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:44:46,829 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:44:46,830 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:44:46,830 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:44:46,841 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:44:46,841 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:44:46,842 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:44:46,842 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:44:46,842 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:44:46,842 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:44:46,842 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:44:46,842 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:44:46,843 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:44:46,843 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:44:46,843 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:44:46,843 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:44:46,844 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:44:46,844 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:44:46,844 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:44:46,844 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:44:46,844 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:44:46,845 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:44:46,845 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:44:46,845 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:44:46,845 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:44:46,845 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:44:46,845 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:44:46,845 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:44:46,846 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:44:46,846 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:44:46,846 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:44:46,846 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:44:46,846 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:44:46,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:44:46,846 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:44:46,846 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:44:46,847 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:44:46,847 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:44:46,847 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:44:46,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:44:46,847 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:44:46,847 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_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 -> f9996153423fecedcbbebbb98f8557ca25433f0f [2018-11-18 10:44:46,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:44:46,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:44:46,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:44:46,883 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:44:46,884 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:44:46,884 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-11-18 10:44:46,927 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/0970c16fb/cd43a363d6d344bfa62b7bab4e8167c4/FLAGe952c584b [2018-11-18 10:44:47,227 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:44:47,227 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-11-18 10:44:47,232 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/0970c16fb/cd43a363d6d344bfa62b7bab4e8167c4/FLAGe952c584b [2018-11-18 10:44:47,240 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/0970c16fb/cd43a363d6d344bfa62b7bab4e8167c4 [2018-11-18 10:44:47,242 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:44:47,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:44:47,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:44:47,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:44:47,247 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:44:47,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7601ec79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47, skipping insertion in model container [2018-11-18 10:44:47,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:44:47,273 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:44:47,398 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:44:47,400 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:44:47,426 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:44:47,440 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:44:47,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47 WrapperNode [2018-11-18 10:44:47,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:44:47,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:44:47,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:44:47,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:44:47,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:44:47,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:44:47,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:44:47,496 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:44:47,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... [2018-11-18 10:44:47,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:44:47,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:44:47,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:44:47,522 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:44:47,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 10:44:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 10:44:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 10:44:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 10:44:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 10:44:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:44:47,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 10:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:44:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 10:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:44:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:44:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:44:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:44:47,740 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:44:47,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:44:47 BoogieIcfgContainer [2018-11-18 10:44:47,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:44:47,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:44:47,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:44:47,743 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:44:47,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:44:47" (1/3) ... [2018-11-18 10:44:47,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3ade2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:44:47, skipping insertion in model container [2018-11-18 10:44:47,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:47" (2/3) ... [2018-11-18 10:44:47,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3ade2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:44:47, skipping insertion in model container [2018-11-18 10:44:47,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:44:47" (3/3) ... [2018-11-18 10:44:47,745 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b_true-unreach-call.c [2018-11-18 10:44:47,750 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:44:47,756 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:44:47,767 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:44:47,786 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:44:47,786 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:44:47,786 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:44:47,786 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:44:47,786 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:44:47,786 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:44:47,786 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:44:47,787 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:44:47,796 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 10:44:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:44:47,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:44:47,800 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] [2018-11-18 10:44:47,802 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:44:47,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:44:47,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1133379876, now seen corresponding path program 1 times [2018-11-18 10:44:47,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:44:47,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:44:47,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:44:47,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:44:47,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:44:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:44:47,904 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 10:44:47,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:44:47,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:44:47,906 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:44:47,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:44:47,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:44:47,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:44:47,921 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 10:44:47,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:44:47,934 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-11-18 10:44:47,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:44:47,935 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 10:44:47,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:44:47,941 INFO L225 Difference]: With dead ends: 76 [2018-11-18 10:44:47,941 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 10:44:47,943 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 10:44:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 10:44:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 10:44:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 10:44:47,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-11-18 10:44:47,968 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 22 [2018-11-18 10:44:47,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:44:47,968 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-11-18 10:44:47,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:44:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-11-18 10:44:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:44:47,969 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:44:47,969 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 10:44:47,970 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:44:47,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:44:47,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1396825538, now seen corresponding path program 1 times [2018-11-18 10:44:47,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:44:47,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:44:47,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:44:47,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:44:47,971 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:44:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:44:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:44:48,044 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:44:48,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:44:48 BoogieIcfgContainer [2018-11-18 10:44:48,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:44:48,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:44:48,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:44:48,070 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:44:48,070 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:44:47" (3/4) ... [2018-11-18 10:44:48,073 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:44:48,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:44:48,073 INFO L168 Benchmark]: Toolchain (without parser) took 830.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -129.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:44:48,074 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:44:48,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.47 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:44:48,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:44:48,075 INFO L168 Benchmark]: Boogie Preprocessor took 26.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:44:48,075 INFO L168 Benchmark]: RCFGBuilder took 218.90 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:44:48,076 INFO L168 Benchmark]: TraceAbstraction took 328.53 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:44:48,076 INFO L168 Benchmark]: Witness Printer took 3.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:44:48,078 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.47 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 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 54.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 218.90 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 328.53 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: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 151]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 137, overapproximation of bitwiseOr at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60. 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)=22, \old(Lg2_log)=26, \old(Lg3_log)=9, \old(Lg4_log)=12, \old(Lg5_log)=14, \old(Lg6_log)=19, \old(Lg7_log)=18, \old(ln2_hi_log)=11, \old(ln2_lo_log)=15, \old(two54_log)=20, \old(zero)=23, 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] [L146] 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] [L147] CALL, EXPR __ieee754_log(x) VAL [\old(x)=24, 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)=24, 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=24, 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)=24, hx=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=25, two54_log=18014398509481984, x=24, zero=0] [L57] k = 0 VAL [\old(x)=24, hx=0, 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=25, two54_log=18014398509481984, x=24, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=24, hx=0, 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=25, two54_log=18014398509481984, x=24, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] RET return -two54_log / zero; VAL [\old(x)=24, hx=0, 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=25, two54_log=18014398509481984, x=24, zero=0] [L147] EXPR __ieee754_log(x) VAL [__ieee754_log(x)=13, 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=24, zero=0] [L147] double res = __ieee754_log(x); [L150] CALL, EXPR isnan_double(res) VAL [\old(x)=13, 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] [L137] RET return x != x; VAL [\old(x)=13, \result=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, two54_log=18014398509481984, x=13, zero=0] [L150] EXPR isnan_double(res) VAL [isnan_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=13, two54_log=18014398509481984, x=24, zero=0] [L150] COND TRUE !isnan_double(res) [L151] __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=13, two54_log=18014398509481984, x=24, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 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=42occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 10:44:49,500 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:44:49,501 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:44:49,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:44:49,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:44:49,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:44:49,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:44:49,511 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:44:49,512 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:44:49,513 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:44:49,513 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:44:49,513 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:44:49,514 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:44:49,515 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:44:49,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:44:49,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:44:49,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:44:49,518 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:44:49,520 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:44:49,521 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:44:49,522 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:44:49,523 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:44:49,524 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:44:49,525 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:44:49,525 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:44:49,525 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:44:49,526 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:44:49,527 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:44:49,527 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:44:49,528 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:44:49,528 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:44:49,529 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:44:49,529 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:44:49,529 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:44:49,529 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:44:49,530 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:44:49,530 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 10:44:49,541 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:44:49,541 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:44:49,542 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:44:49,542 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:44:49,542 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:44:49,542 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:44:49,543 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:44:49,543 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:44:49,543 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:44:49,543 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:44:49,543 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:44:49,543 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:44:49,544 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:44:49,545 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:44:49,545 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:44:49,545 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:44:49,546 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:44:49,546 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:44:49,546 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:44:49,546 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:44:49,546 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_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 -> f9996153423fecedcbbebbb98f8557ca25433f0f [2018-11-18 10:44:49,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:44:49,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:44:49,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:44:49,585 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:44:49,585 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:44:49,586 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-11-18 10:44:49,619 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/5443f2813/331e6757c2ce4372b81a2fb40c70d5fa/FLAG212430600 [2018-11-18 10:44:50,020 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:44:50,020 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/sv-benchmarks/c/float-newlib/double_req_bl_0920b_true-unreach-call.c [2018-11-18 10:44:50,024 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/5443f2813/331e6757c2ce4372b81a2fb40c70d5fa/FLAG212430600 [2018-11-18 10:44:50,032 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/data/5443f2813/331e6757c2ce4372b81a2fb40c70d5fa [2018-11-18 10:44:50,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:44:50,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:44:50,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:44:50,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:44:50,038 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:44:50,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26edcba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50, skipping insertion in model container [2018-11-18 10:44:50,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:44:50,068 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:44:50,210 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:44:50,214 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:44:50,244 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:44:50,267 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:44:50,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50 WrapperNode [2018-11-18 10:44:50,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:44:50,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:44:50,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:44:50,268 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:44:50,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:44:50,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:44:50,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:44:50,323 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:44:50,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... [2018-11-18 10:44:50,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:44:50,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:44:50,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:44:50,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:44:50,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 10:44:50,387 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 10:44:50,387 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 10:44:50,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 10:44:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 10:44:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 10:44:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 10:44:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:44:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:44:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:44:50,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:44:50,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:44:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:44:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:44:50,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:44:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:44:50,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:44:50,531 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:45:14,308 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:45:14,423 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:45:14,535 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:45:14,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:45:14 BoogieIcfgContainer [2018-11-18 10:45:14,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:45:14,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:45:14,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:45:14,538 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:45:14,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:44:50" (1/3) ... [2018-11-18 10:45:14,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48100b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:45:14, skipping insertion in model container [2018-11-18 10:45:14,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:44:50" (2/3) ... [2018-11-18 10:45:14,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48100b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:45:14, skipping insertion in model container [2018-11-18 10:45:14,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:45:14" (3/3) ... [2018-11-18 10:45:14,540 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b_true-unreach-call.c [2018-11-18 10:45:14,545 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:45:14,550 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:45:14,558 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:45:14,575 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:45:14,575 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:45:14,575 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:45:14,575 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:45:14,576 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:45:14,576 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:45:14,576 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:45:14,576 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:45:14,576 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:45:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-18 10:45:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:45:14,588 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:45:14,589 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] [2018-11-18 10:45:14,590 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:45:14,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:45:14,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1454715167, now seen corresponding path program 1 times [2018-11-18 10:45:14,596 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:45:14,596 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 10:45:14,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:45:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:45:15,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:45:15,301 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 10:45:15,301 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:45:15,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:45:15,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:45:15,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:45:15,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:45:15,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:45:15,341 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-18 10:45:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:45:15,358 INFO L93 Difference]: Finished difference Result 74 states and 108 transitions. [2018-11-18 10:45:15,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:45:15,359 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 10:45:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:45:15,368 INFO L225 Difference]: With dead ends: 74 [2018-11-18 10:45:15,368 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 10:45:15,370 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 10:45:15,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 10:45:15,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 10:45:15,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:45:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2018-11-18 10:45:15,396 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 21 [2018-11-18 10:45:15,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:45:15,396 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-11-18 10:45:15,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:45:15,397 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2018-11-18 10:45:15,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:45:15,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:45:15,398 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] [2018-11-18 10:45:15,398 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:45:15,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:45:15,398 INFO L82 PathProgramCache]: Analyzing trace with hash -522835449, now seen corresponding path program 1 times [2018-11-18 10:45:15,399 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:45:15,399 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 10:45:15,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:45:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:45:16,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:45:16,195 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 10:45:16,196 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:45:16,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:45:16,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:45:16,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:45:16,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:45:16,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:45:16,217 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 6 states. [2018-11-18 10:45:24,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:45:24,990 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2018-11-18 10:45:25,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:45:25,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-11-18 10:45:25,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:45:25,559 INFO L225 Difference]: With dead ends: 51 [2018-11-18 10:45:25,559 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 10:45:25,560 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:45:25,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 10:45:25,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2018-11-18 10:45:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:45:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2018-11-18 10:45:25,566 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 22 [2018-11-18 10:45:25,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:45:25,566 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-18 10:45:25,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:45:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2018-11-18 10:45:25,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:45:25,567 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:45:25,568 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] [2018-11-18 10:45:25,568 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:45:25,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:45:25,568 INFO L82 PathProgramCache]: Analyzing trace with hash 675599430, now seen corresponding path program 1 times [2018-11-18 10:45:25,569 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:45:25,569 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 10:45:25,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:45:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:45:25,669 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:45:25,733 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 10:45:25,733 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:45:25,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:45:25,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:45:25,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:45:25,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:45:25,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:45:25,743 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand 6 states. [2018-11-18 10:45:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:45:33,477 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2018-11-18 10:45:34,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:45:34,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-11-18 10:45:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:45:34,062 INFO L225 Difference]: With dead ends: 62 [2018-11-18 10:45:34,062 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 10:45:34,063 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:45:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 10:45:34,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-18 10:45:34,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:45:34,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-11-18 10:45:34,068 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 22 [2018-11-18 10:45:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:45:34,068 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-11-18 10:45:34,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:45:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-11-18 10:45:34,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 10:45:34,069 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:45:34,070 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 10:45:34,070 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:45:34,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:45:34,070 INFO L82 PathProgramCache]: Analyzing trace with hash 2089035580, now seen corresponding path program 1 times [2018-11-18 10:45:34,071 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:45:34,071 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/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 10:45:34,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:45:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:45:34,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:45:37,119 WARN L854 $PredicateComparison]: unable to prove that (and (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |c___ieee754_log_#in~x| |c___ieee754_log_#in~x|) c_~zero~0) |c___ieee754_log_#res|) (= (_ +zero 11 53) c_~zero~0)) is different from true [2018-11-18 10:45:37,205 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 10:45:37,205 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:45:37,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:45:37,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 10:45:37,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 10:45:37,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 10:45:37,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=56, Unknown=1, NotChecked=14, Total=90 [2018-11-18 10:45:37,240 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 10 states. [2018-11-18 10:45:42,855 WARN L180 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 10:45:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:45:46,008 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-18 10:45:46,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 10:45:46,009 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-11-18 10:45:46,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:45:46,009 INFO L225 Difference]: With dead ends: 46 [2018-11-18 10:45:46,009 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 10:45:46,010 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=44, Invalid=141, Unknown=1, NotChecked=24, Total=210 [2018-11-18 10:45:46,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 10:45:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-18 10:45:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:45:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-18 10:45:46,017 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 23 [2018-11-18 10:45:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:45:46,018 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-18 10:45:46,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 10:45:46,018 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-18 10:45:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 10:45:46,018 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:45:46,019 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 10:45:46,019 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:45:46,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:45:46,019 INFO L82 PathProgramCache]: Analyzing trace with hash 917459255, now seen corresponding path program 1 times [2018-11-18 10:45:46,019 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:45:46,019 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 10:45:46,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:45:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:45:46,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:45:46,348 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 10:45:46,348 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:45:46,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:45:46,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:45:46,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:45:46,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:45:46,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:45:46,360 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 6 states. [2018-11-18 10:45:50,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:45:50,155 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2018-11-18 10:45:50,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:45:50,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-11-18 10:45:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:45:50,752 INFO L225 Difference]: With dead ends: 37 [2018-11-18 10:45:50,752 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:45:50,752 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 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 10:45:50,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:45:50,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:45:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:45:50,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:45:50,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 10:45:50,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:45:50,753 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:45:50,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:45:50,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:45:50,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:45:50,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:45:50,997 INFO L428 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 137) the Hoare annotation is: true [2018-11-18 10:45:50,997 INFO L425 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 137) no Hoare annotation was computed. [2018-11-18 10:45:50,997 INFO L425 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 137) no Hoare annotation was computed. [2018-11-18 10:45:50,997 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:45:50,997 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:45:50,997 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:45:50,998 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 92) no Hoare annotation was computed. [2018-11-18 10:45:50,998 INFO L425 ceAbstractionStarter]: For program point __ieee754_logEXIT(lines 45 124) no Hoare annotation was computed. [2018-11-18 10:45:50,998 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2018-11-18 10:45:50,998 INFO L421 ceAbstractionStarter]: At program point L65-3(lines 65 69) the Hoare annotation is: (or (not (= (_ +zero 11 53) ~zero~0)) (and (exists ((v_prenex_8 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_8) ((_ extract 62 52) v_prenex_8) ((_ extract 51 0) v_prenex_8))) (= ((_ extract 63 32) v_prenex_8) __ieee754_log_~hx~1))) (exists ((v_prenex_9 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_9) ((_ extract 62 52) v_prenex_9) ((_ extract 51 0) v_prenex_9))) (not (bvslt ((_ extract 63 32) v_prenex_9) (_ bv0 32))))))) [2018-11-18 10:45:50,998 INFO L425 ceAbstractionStarter]: For program point L94(lines 94 99) no Hoare annotation was computed. [2018-11-18 10:45:50,998 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 62) no Hoare annotation was computed. [2018-11-18 10:45:50,998 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 122) no Hoare annotation was computed. [2018-11-18 10:45:50,998 INFO L425 ceAbstractionStarter]: For program point L86(lines 86 91) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 123) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 70) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 45 124) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 55) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L421 ceAbstractionStarter]: At program point L50-3(lines 50 55) the Hoare annotation is: (or (= __ieee754_log_~x |__ieee754_log_#in~x|) (not (= (_ +zero 11 53) ~zero~0))) [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point L50-4(lines 50 55) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L428 ceAbstractionStarter]: At program point __ieee754_logENTRY(lines 45 124) the Hoare annotation is: true [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point __ieee754_logFINAL(lines 45 124) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 60) no Hoare annotation was computed. [2018-11-18 10:45:50,999 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 100) no Hoare annotation was computed. [2018-11-18 10:45:51,000 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 117) no Hoare annotation was computed. [2018-11-18 10:45:51,000 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 81) no Hoare annotation was computed. [2018-11-18 10:45:51,000 INFO L421 ceAbstractionStarter]: At program point L76-3(lines 76 81) the Hoare annotation is: (or (exists ((v_prenex_9 (_ BitVec 64))) (and (= |__ieee754_log_#in~x| (fp ((_ extract 63 63) v_prenex_9) ((_ extract 62 52) v_prenex_9) ((_ extract 51 0) v_prenex_9))) (not (bvslt ((_ extract 63 32) v_prenex_9) (_ bv0 32))))) (not (= (_ +zero 11 53) ~zero~0))) [2018-11-18 10:45:51,000 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 81) no Hoare annotation was computed. [2018-11-18 10:45:51,000 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:45:51,000 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= (_ +zero 11 53) ~zero~0) [2018-11-18 10:45:51,000 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:45:51,000 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:45:51,000 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 151) no Hoare annotation was computed. [2018-11-18 10:45:51,001 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 139 156) the Hoare annotation is: true [2018-11-18 10:45:51,001 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 139 156) no Hoare annotation was computed. [2018-11-18 10:45:51,001 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 139 156) no Hoare annotation was computed. [2018-11-18 10:45:51,001 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 10:45:51,001 INFO L421 ceAbstractionStarter]: At program point L150(line 150) the Hoare annotation is: (or (not (= (_ +zero 11 53) ~zero~0)) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (and (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) (_ +zero 11 53)) main_~res~0) (= .cse0 main_~x~0)))) [2018-11-18 10:45:51,001 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 150 153) no Hoare annotation was computed. [2018-11-18 10:45:51,001 INFO L421 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (or (not (= (_ +zero 11 53) ~zero~0)) (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0)) [2018-11-18 10:45:51,001 INFO L425 ceAbstractionStarter]: For program point L147-1(line 147) no Hoare annotation was computed. [2018-11-18 10:45:51,005 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,005 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,005 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,006 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,006 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,006 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,006 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,006 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,010 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,011 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,011 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,011 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,011 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,011 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,011 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,012 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,014 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,014 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,014 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,014 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:45:51 BoogieIcfgContainer [2018-11-18 10:45:51,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:45:51,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:45:51,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:45:51,016 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:45:51,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:45:14" (3/4) ... [2018-11-18 10:45:51,018 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:45:51,022 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-11-18 10:45:51,022 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:45:51,022 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log [2018-11-18 10:45:51,023 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:45:51,027 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-11-18 10:45:51,027 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-18 10:45:51,027 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 10:45:51,027 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 10:45:51,044 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~Pluszero~LONGDOUBLE() == zero) [2018-11-18 10:45:51,044 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~Pluszero~LONGDOUBLE() == zero) || ((\exists v_prenex_8 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_8[63:63], v_prenex_8[62:52], v_prenex_8[51:0]) && v_prenex_8[63:32] == hx) && (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32))) [2018-11-18 10:45:51,045 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32)) || !(~Pluszero~LONGDOUBLE() == zero) [2018-11-18 10:45:51,067 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4517cb10-a9bd-481a-bccf-96cb18a8d6f7/bin-2019/utaipan/witness.graphml [2018-11-18 10:45:51,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:45:51,068 INFO L168 Benchmark]: Toolchain (without parser) took 61033.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 950.8 MB in the beginning and 881.7 MB in the end (delta: 69.1 MB). Peak memory consumption was 197.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:45:51,068 INFO L168 Benchmark]: CDTParser took 0.11 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 10:45:51,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:45:51,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:45:51,069 INFO L168 Benchmark]: Boogie Preprocessor took 28.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:45:51,069 INFO L168 Benchmark]: RCFGBuilder took 24185.13 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:45:51,070 INFO L168 Benchmark]: TraceAbstraction took 36479.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.5 MB in the end (delta: 188.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:45:51,070 INFO L168 Benchmark]: Witness Printer took 51.26 ms. Allocated memory is still 1.2 GB. Free memory was 888.5 MB in the beginning and 881.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:45:51,071 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.27 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 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 53.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 24185.13 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36479.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.5 MB in the end (delta: 188.4 MB). Peak memory consumption was 188.4 MB. Max. memory is 11.5 GB. * Witness Printer took 51.26 ms. Allocated memory is still 1.2 GB. Free memory was 888.5 MB in the beginning and 881.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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 10:45:51,075 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,076 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,076 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,076 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,076 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,076 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,076 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,076 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,077 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,077 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,077 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,077 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_8,QUANTIFIED] [2018-11-18 10:45:51,078 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,078 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,078 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,078 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] Derived loop invariant: !(~Pluszero~LONGDOUBLE() == zero) || ((\exists v_prenex_8 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_8[63:63], v_prenex_8[62:52], v_prenex_8[51:0]) && v_prenex_8[63:32] == hx) && (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32))) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: x == \old(x) || !(~Pluszero~LONGDOUBLE() == zero) - InvariantResult [Line: 76]: Loop Invariant [2018-11-18 10:45:51,079 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,079 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,079 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,079 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,079 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,080 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,080 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] [2018-11-18 10:45:51,080 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_9,QUANTIFIED] Derived loop invariant: (\exists v_prenex_9 : bv64 :: \old(x) == ~fp~LONGDOUBLE(v_prenex_9[63:63], v_prenex_9[62:52], v_prenex_9[51:0]) && !~bvslt32(v_prenex_9[63:32], 0bv32)) || !(~Pluszero~LONGDOUBLE() == zero) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 36.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 30.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 191 SDtfs, 113 SDslu, 534 SDs, 0 SdLazy, 183 SolverSat, 12 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 24.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 20 NumberOfFragments, 124 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 74 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 109 ConstructedInterpolants, 22 QuantifiedInterpolants, 13921 SizeOfPredicates, 15 NumberOfNonLiveVariables, 468 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...